Abstract:Water-soluble coupling reagent were used to graft 4-carboxyphenylboronic acid onto poly(vinyl amine) by generating amide bonds to prepare modified poly(vinyl amine) containing phenylboronic acid functional groups (PVAm-PBA). Subsequently, both of the modified poly(vinyl amine) and Poly(vinyl alcohol) (PVA) were used to treat the regenerated cellulose membrane surface through controllable layer-by-layer self-assembly to improve the mechanical strength. The results showed that the isoelectric point of PVAm-PBA was pH 7.9. When the layer number of the polymer self-assembly film was 30 at pH 9.5, the tensile strength and tensile stretch of the regenerated cellulose membrane improved 53% and 76%, respectively. Hence, the method mentioned in this paper has a potential application value in modifying the mechanical properties of fiber products.

Abstract:Dodecyl (triphenylethynyl) silane (DTPES) was synthesized via Grignard reaction of Dodecyl trichlorosilane and phenyl acetylene in the presence of magnesium and ethyl bromide. Its chemical structure was characterized by nuclear magnetic resonance spectroscopy (1H-NMR 13C-NMR, and 29Si-NMR) and Fourier transform infrared spectroscopy (FT-IR). Its curing process was obtained by Differential Scanning Calorimetry (DSC) and the corresponding Polydodecyl(triphenylethynyl)silane resin (PDTPES) was also synthesized by thermal polymerization. The thermal decomposition behavior was analyzed by TG and DTG and the corresponding kinetic parameters and curing mechanism were discussed by six well-known kinetic methods, i.e., Kissinger, Ozawa, Friedman, Vyazonvkin-Weight, Coast-Redfern and Achar methods. Results show that the average thermal decomposition activation energy Ea was 181.51 kJ/mol and the pre-exponential factor A was 9.65?1011s-1, and the thermal decomposition kinetics equation was also proposed.

Abstract:Light-emitting liquid crystals show self-luminous and anisotropic characteristics, for overcoming the defect of aggregation-caused quenching. In this paper, tetraphenylethene, diphenylacrylonitrile, diphenylacetylene, triphenylene decorated with Aggregation-Induced Emission (AIE) and other liquid crystal materials with AIE property are introduced, their AIE and liquid crystal properties are mainly described and their structure-activity relationship is also illustrated. Literatures reported show the use of light-emitting liquid crystal materials in optoelectronic devices can greatly reduce costs and energy consumption. Finally, the aggregation-induced emission groups and liquid crystal groups were both used correctly in synthesis of light-emitting liquid crystals and the future study should focus on the application and luminous mechanism of such materials.

Abstract:Phosphorus is widely involved in the conversion of substances and energy in biochemical reactions and plays an important role in life sciences. It is regarded as the "regulatory center of life sciences". Many scientists have carried out deep and systematic studies in the design, synthesis and properties of phosphoric acid compounds due to the importance of phosphorus in life activities and the biocompatibility and interfacial friendliness of phosphorus compounds. On the basis of recent researches on phosphate compounds, especially phosphoric acid compounds, the present situation and progress in the design, synthesis and basic application of phosphoric acid compounds are reviewed in this paper. For phosphorus-based compounds, especially phosphate compounds, based on the research work in recent years, this article systematically reviews the current status and progress of design synthesis and basic application research of phosphate-type compounds. The Kabachnik-Fields reaction, Atherton-Todd reaction, Abramov reaction, Michaels addition reaction and coupling reaction involving the design and synthesis of phosphorus-containing target compounds were highlighted. The application field and development trend of phosphorous compounds based on the above reaction design and synthesis are also prospected.

Abstract:TiO2 nanoparticles were loaded on BiOI flower microspheres by solvothermal method. The obtained products were characterized by XRD, FT-IR, XPS, SEM, TEM and UV-VIS-NIR spectrophotometer. Methyl orange (MO) as the target pollutant, the photocatalytic activity of TiO2/BiOI composite was studied under visible light. The results showed that the performance was improved, because TiO2 nanoparticles was contributes to the increase in the specific surface area of the photocatalyst and the heterogeneous structure formed between TiO2 and BiOI could promote photogenerated electrons and hole separation. It was found that the highest photocatalytic activity could be realized when the molar ratio of Ti:Bi was 0.4, and the degradation rate was up to 95%, far higher than that of pure TiO2 nanoparticles and BiOI.

Abstract:The spherical CoCO3 precursor was prepared by precipitation method using CoSO4 as cobalt source and NH4HCO3 as precipitating agent. The influence of seed crystal quantity, pH value, and cobalt source solution flow rate on morphology, distribution of particle size, tap density and sulfur content of CoCO3 was investigated. Meanwhile, the growth mechanism of cobalt carbonate was studied.CoCO3 precursor was calcined at different heating-up time in order to optimize the physical and chemical properties of Co3O4.The results show that large-size spherical Co3O4 with narrow particle size distribution and high tap density could be obtained in a 10L reactor with 2 kg seed crystals and cobalt source flow rate at 500 mL/h at pH value 7-7.3, and then calcined in 3 stages, with 60 minutes heating-up time for each stage. The median particle diameter of Co3O4 was 16.5 μm and tap density was over 2.2 g/cm3.

Abstract:Employing the high insecticidal active compound Ⅴj which was found in our previous work as a leading compound, 19 benzoyl urea compounds containing 5-aminothiazole ring have been designed and synthesized (yield: 81.4~95.8%) by introducing different substituent to the 2-position phenyl of thiazole ring. The structures of all these compounds were confirmed by 1H NMR and 13C NMR. Preliminary results of in vitro insecticidal activity test showed that all the title compounds displayed certain insecticidal activity at the concentration of 600 mg/L (W/W). Among them, compounds Ⅵ i ~ o showed 100% lethal activity against armyworm, Besides, three compounds Ⅵ k,Ⅵ m and Ⅵ n also exhibited 100% fatality rate against cotton bollworm and corn borer.

Abstract:Abstract: To develop a new type of glycoside flavor, firstly, 2, 3, 4, 6-tetra-O-acetyl-α-D-glucopyranosyl bromide (III) was synthesized from D-glucose. Then, 5-methyl furfuryl alcohol-2, 3, 4, 6-tetra-O-acetyl-β-D-glucoside (IV) was prepared via a glycosylation reaction between Compound III and 5-methyl furfuryl alcohol (II) by the Modified Koenigs-Knorr and Phase transfer catalysis, respectively. Finally, the target compound 5-methyl furfuryl alcohol-β-D-glucoside (V) was obtained by hydrolysis of compound IV. The molecular structures of intermediates and final products were confirmed by 1H NMR, 13C NMR, IR and HRMS. The thermal pyrolysis of glucoside (V) was also studied. The results indicated that: 1) The compound IV synthesized by the two methods was target product, the Modified Koenigs-Knorr method was better than Phase transfer catalysis method. 2) The optimal conditions of the Modified Koenigs-Knorr were determined as follows: n (5-methyl furfuryl alcohol): n (2, 3, 4, 6-tetra-O-acetyl-α-D-glucopyranosyl bromide ) = 1∶1.6, n (5-methyl furfuryl alcohol) : n ( silver carbonate ) =1 : 1.5, refluxing for 4 hours, the yield of compound IV reached 42.9% . 3) The synthesized 5-methyl furfuryl alcohol-β-D-glucoside can release 5- methyl furfural，5- methyl furfuryl alcohol and other aromatic components after pyrolysis, thus holding great promise for applications in the food, tobacco industries.

Abstract:In this paper, taking triphenylamine as a raw material, 4,4'-(ethene-1,2-diyl)bis (N,N-diphenylaniline) (TPAS) has been synthesized, which was composed by C=C and two triphenylamine groups via Vilsmeier-Haack reaction and McMurry reaction. The optical performance of TPAS has been studied by UV-Vis absorbance spectrum and fluorescence spectrum. The results showed that TPAS had strong fluorescence emission, and the fluorescence emission was blue light. The fluorescence intensity had a good linear relationship with the concentration, and the solvation effect was not strong, and the optical stability was good. The aggregation of TPAS has been characterized by scanning electron microscope(SEM). And the results showed that when the volume fraction of water increased, the TPAS molecules accumulated and the morphology changed. The Cytotoxicity of TPAS was tested by MTT assays, the cell viability was above 80% with the increase of TPAS concentration in the text, which was revealed that TPAS is biocompatible and have low toxicity to cells. Then achieved imaging of A549.

Abstract:Specific surface area activated carbon was prepared from pyrolysis semi-coke of marine garbage ulva by using KOH. The effect of activation process on adsorption performance of activated carbon was investigated by means of iodine adsorption and methylene blue adsorption. The iodine adsorption value and methylene blue adsorption value of activated carbon could be up to1824.19mg/g、914.98 mg/g when the semi-coke activated under the optimal conditions of mass ratio of KOH/semi-coke 3：1, activated temperature 800℃, activated time 45 min. The FTIR showed that the surface functional group of activated carbon contained a large number of hydroxyl groups. The SEM showed that the surface of activated carbon was very rough and had plenty of pore structure. BET surface area and Langmuir surface area were up to 2616.3 m2/g and 4883.5m2/g respectively. Activated carbon had micro- and mesostructure with pore size of 2.73 nm, so that it had the potential as the material of energy storage and environmental protection.

Abstract:Phosphorylated polysaccharides from Tussilago farfara was synthesized . The synthetic process conditions was optimized via the response surface method. The research results show that 6.03h, 86℃, 14.25% of urea，2.0 of mass ratio of mix-phosphate, 1.5 of mass ratio of mix-phosphate and polysaccharides were the optimum conditions. The Ds of phosphorylated polysaccharides from Tussilago farfara was 0.697. The antioxidant ability of phosphorylated polysaccharides from Tussilago farfara had been improved.

Abstract:The urea-choline chloride deep eutectic solvent was applied to extract the wool keratin. The optimum conditions were dissolution temperature 130℃, dissolution time 180 min, and mass ratio of wool to urea-choline chloride deep eutectic solvent 1:33. FTIR, Raman, XRD, SDS-PAGE and TGA were used to characterize the structure of pristine wool and regenerated wool keratin. The results indicated the backbone of regenerated wool keratin was maintained during the process of dissolution. Compared with pristine wool fiber, the content ofα-helix structure in regenerated wool keratin was decreased, and the heat resistance was reduced.

Abstract:The composite powders of La0.8Sr0.2MnO3 (LSM) perovskite and MgAl2O4 (MA) spinel, named as LSM/nMA were prepared by deposition-precipitation method. The impact of preparation factors, such as the molar ratio of MA to LSM (n), the aging temperature and calcination temperature of precursors was investigated. The activity of the composite powder was examined in the temperature-programmed micro reactor for catalytic combustion of air diluted methane，and the properties of catalysts were characterized by FTIR, H2-TPR, BET, XRD and SEM. The LSM/4MA catalyst which precursor aged at 10℃ and calcined at 800℃ demonstrated the best activity with T50 489.4℃ and Ea 112.5kJ/mol and excellent sintering resistance with SSA of 81.6m2/g . Afterwards, the wire-mesh honeycomb catalysts were developed by dip-coating sequentially the slurries of MA and LSM/4MA powders. Influences of the loading of MA and LSM/4MA coating were investigated respectively in reactions at GHSV of 40000/h, which gave the best amount in preparation of the wire-mesh honeycombs and the proper coating thickness of MA is around 20?m, the best loading of LSM/4MA is about 2.65mg/cm2.

Abstract:The volatile compounds and sulfur aroma compounds of Yunnan Truffle were extracted from fresh-picked and vacuum freeze-drying by headspace solid-phase microextraction (HS-SPME). Separation and identification of volatile components and sulfur aroma compounds were conducted by gas chromatography-mass spectrometry (GC–MS) and gas chromatography-flame photometric detection (GC-FPD). The results showed that 30 and 83 volatile flavor compounds, 8 and 19 sulfur aroma compounds were detected in fresh-picked and vacuum freeze-drying truffle, respectively. 1-octen-3-ol, p-cresyl methyl ether, 3-methyl-butanal, diallyl disulfide and dimethyl sulfide had high content in fresh truffles; p-cresyl methyl ether, hexanoic acid, d-limonene, dimethyl sulfone, allyl methyl trisulfide had high content in dry truffles. Gas chromatography-olfactory (GC-O) combined with aroma activity value (OAV) found diallyl disulfide, dimethyl sulfide, 1-octen-3-one, 1-octen-3-ol and 3-methyl-butanal had larger contribution on the aroma of fresh truffles. In dry truffles, bis(2-methyl-3-furyl)disulfide, γ-nonalactone, hexanoic acid, 1-octen-3-one, and 2-Isopropyltoluene had greater contribution .

Abstract:The nanodrop（H-BLFnd）was prepared by ionic cross-linking method, taking high purity C-glycoside flavonoids of bamboo leaf（H-BLF,the mass fraction of C-glycoside flavonoids was above 90 %）and turnip polysaccharide as raw materials, ε-polylysine as a cross-linking agent, then 8 % (w/v) of γ-cyclodextrin was added to H-BLFnd as protective agent, and nanoparticle (H-BLFnp) was obtained via vacuum freeze drying. The appearance, performance and structural characterization of H-BLFnp were tested through particle size analysis, TEM, UV, FTIR, TG and DSC. Results showed that H-BLFnp is a kind of white powder, smoothly and uniformly, which is of（679±10.2）nm average size, （0.349±0.004）dispersion coefficient and（92.39±0.34）% encapsulation efficiency.

Abstract:Rifamycin S (S), which can be made by oxidation of rifamycin SV (SV), is the main material of rifampicin. To solve the problems of side reactions and equipment corrosion in the production of S, a new oxidation technology was developed with organic solvent/water heterogeneous system instead of traditional water-based system. In this research, butyl acetate/water two-phase system was chosen as the reaction solvent. Through analyzing and comparing the oxidation effects and mechanisms of different oxidants, sodium hypochlorite (NaClO) was conformed as the oxidant in the heterogeneous system. Besides, the impacts of various factors, such as NaClO concentration, NaClO/SV molar ratio, temperature, pH and reaction time, on the mass transfer - reaction process and oxidation effects were investigated. The results showed that under the conditions of NaClO concentration 0.3206 mol/L, NaClO/SV molar ratio 1.41：1, reaction temperature 30 ℃, pH 12.3 and reaction time 12 min, the yield and selectivity of S were the highest, which were 89.02% and 92.42% respectively. Compared with the traditional technology, the yield and selectivity increased by 3.61% and 6.74% respectively under the same conditions, and the space-time-yield increased from 16.75 g/(L•h) to 139.60 g/(L•h).

Abstract:A series of quinazolin-2-amine derivatives (Ⅲa~Ⅲf) were synthesized by condensation, cyclization and so on from isolongifolanone and characterized by 1HNMR, 13C NMR, IR and HRMS. Their inhibitory activity against human hepatoma cell (HepG2) and human umbilical vein endothelial cells (HUVECs) were evaluated by MTT assay. The results showed that the half maximal inhibitory concentrations of compounds Ⅲa, Ⅲb, Ⅲd and Ⅲf were 8.58±0.5, 44.52±0.9, 57.18±0.8 and 32.83±0.6 μmol/L, indicating that these compounds showed moderate antitumor activity against HepG2. Among these compounds, compound Ⅲa, 4-(4'-chlorophenyl)-6,6,10,10-tetramethyl-5,6,6a,7,8,9,10,10a-octahydro-6a,9-methanobenzo[h]quinazolin-2-amine, had the best activity against HepG2. Only 4-(4'-(N,N-dimethylamino)phenyl)-6,6,10,10-tetramethyl-5,6,6a,7,8,9,10,10a-octahydro-6a,9-methanobenzo[h]quinazolin-2-amine (Ⅲf) showed a certain inhibitory activity against HUVECs. These compounds were also carried out to evaluate against myzus persicae by a leaf-dipping method. It was found that compounds Ⅲa and Ⅲd gave excellent insecticidal activity against myzus persicae with corresponding lethal concentration (LC50) of 37.4589±6.412 and 41.0073±5.920 mg/L.

Abstract:Inspired by the adhesion of mussels in nature, a facile green approach to the synthesis of silvernanoparticles (AgNPs) loaded montmorillonite composite antibacterial particle (MMT-AgNPs) functionalized by using polydopamine (PDA) as a secondary reaction platform is reported.And polylactide（PLA）/PDA/MMT-AgNPs composite antibacterial film with different filler loading was prepared by the solvent evaporation method. Thematerial composition, phase structure, microstructureand thermal stability of MMT-AgNPs were characterized by FTIR, XRD, TEM and TGA.The microstructure, physical properties and antimicrobial activity of PLA/PDA/MMT-AgNPs composite antibacterial film were also studied. And the results showed that the modification of polydopamine made the silver nanoparticles successfully loaded on MMT and the loading of AgNPs was 3.4%wt.The PDA modified MMT remained the original phase structure. Thetensile strength of PLA/PDA/MMT-AgNPs composite antibacterial film increased significantly with a maximum increase of 32.6%. Because of the synergistic antibacterial effect of PDA and AgNPs,the antimicrobial ability of MMT-AgNPs filled PLA composites at very low content of MMT-AgNPs is remarkable for S. aureus and E. coli ,and the bacteriostasis rate was up to 95%.

Abstract:New amphoteric polyurethane emulsions(AAPU) containing aldehyde group were prepared by polyaddition reaction usingisophoronediisocyanate(IPDI), polytetrahydrofuran glycol (PTMG),2,4-dihydroxybenzaldehyde(DDBA),2,2-dihydroxymethylpropionic acid(DMPA) and N-methyldiethanolamine (N-MDEA) as raw materials. The effects of hydrophilic chain extender and r value on the particle size and stability of emulsions were investigated. The structure of AAPU was characterized by UV and FT-IR. The size, morphology and electrification of latex particle were measured by nano particle size meter, transmission electron microscopy and Zeta potential analyzer. The results show that the products have the expected structure. Average particle size of the as-prepared AAPU is 42.6 nm and its isoelectric point is 5.16 while the value of r and the dosage of DMPA were controlled as 1.2 and 5%, respectively. Furthermore, because the emulsion is amphoteric,it is beneficial to improve the binding capacity between leather and anion wet-finishing materials in the retanning process of non-metallic tanning system as the retanning agent.

Abstract:A CuS/grapheneoxide nano-composite was prepared by using Cu(Ac)2, Na2S and graphene oxide (GO) as main raw materials under hydrothermal condition in present of cetyl trimethyl ammonium bromide(CTMAB), with deionized water as solvent. The sample was characterized by XRD，FT-IR，XPS，SEM and TEM. Eventually, the nanoparticles consisting of 10~20 nm CuS in situ grow on GO. The photocatalytic property of title nano-composite is investigated. The degradation ratio of tetracycline (TC) and rhodamine B (Rh-B) reach 63% and 85% after 120 min (under visible light). The result suggests that the CuS/GO nanocomposite exhibits excellent photocatalytic activity and potential application in the degradation of organic of TC and Rh-B in the pollute water. A linear relation of -ln(C/C0) vs. reaction time was obtained, suggesting that the reaction can be considered as a pseudo-first-order reaction.

Abstract:Abstract: A novel nickel ion imprinted polymers (IIPs) based on multi-walled carbon nanotubes (MWCNTs) were synthesized in inverse emulsion system, using N-isopropyl acrylamide (NIPAM) and Methyl methacrylate, Acrylic acid as the functional monomers, Ni(II) as the template,and N,N-methylene bis-acrylamide as the cross-linker.The as-prepared IIPs were characterized by Fourier transform infrared spectrometer (FTIR), X-ray diffraction (XRD), thermogravimetry (TG) and scanning electron microscopy (SEM). The adsorption properties of the imprinted polymer were investigated by spectrophotometry.The adsorption properties of ion imprinted polymers were investigated by dimethylglyoxime visible spectrophotometry.At the optimum adsorption temperature of 40 ℃, the maximum adsorption of Ni2+ by IIPs is 33.80 mg/g. The studies indicated that The adsorption and desorption efficiency of imprinted polymers can be controlled by changing the temperature, the adsorption process obeyed the thermodynamic Langmuir model, the second-order kinetic model. The desorption efficiency at 25 ℃ is much greater than the desorption efficiency at 50 ℃. In the presence of competitive ions Pb2+ and Cd2+, the selection coefficients of Ni2+/Pb2+ and Ni2+/Cd2+ are 12.62 and 16.12, respectively, indicating that IIPs really have a strong ability to recognize Ni2+.

Abstract:Abstract：A novel flame-retardant additive, Phenylphosphonium diaminobisethyltetraphosphonic acid (PAEPA), was synthesized from phosphoric acid, acetonitrile and phenylphosphonic dichloride(PPDC). The structure of PAEPA was characterized by FTIR, and ESI-MS. PAEPA was blended into epoxy resin to prepare flame-retardant epoxy resins. The flame-retardant and thermal properties of epoxy resins cured with triethylenetetramine (TETA) were investigated by TGA, the UL-94 test, and LOI test. The results revealed that the epoxy thermosets exhibited excellent flame retardancy and passed the V-0 rating of the UL 94 test with an LOI of 29.8% when the phosphorus content was 2.6 %. From the thermogravimetric curve, the residual carbon at 800°C is 17.7%. SEM results showed that PAEPA in the EP/TETA system obviously accelerated the formation of a stronger, phosphorus-rich, sealing char layer to improve the flame-retardant properties of the matrix during combustion.

Abstract:Using cyanuric acid and calcium hydroxide/zinc oxide as raw materials and deionized water as solvent, zinc/calcium cyanurate, a new kind of poly(vinyl chloride) (PVC) thermal stabilizer, has been synthesized. Calcium/zinc cyanurate was characterized by elemental analyzer (EA), fourier transform infrared spectrometer (FTIR), thermogravimetry (TG) and scanning electron microscopy (FESEM). The thermal stability of calcium/zinc cyanurate as a thermal stabilizer for PVC was studied by oven aging test and Congo red test, and the mechanism of thermal stability was explored. The results showed that the addition of 1% of calcium cyanurate and zinc cyanurate to PVC alone, compared to the same amount of calcium stearate and zinc stearate, the former had a better thermal stability than the latter. The calcium/zinc cyanurate compound showed a good synergisitic effect, and the best quality ratio was 3:1. The PVC test piece was fully roasted with zinc for 70 min, and the thermal stabilization time reached 28 min. It has also been found that epoxy soya bean oil (ESBO) is an auxiliary stabilizer that is well suited for the calcium/zinc cyanurate system and can better improve the thermal stability of PVC systems.

Abstract:Flame-retardant PA66 composites were prepared by melt blending with bisphenol Abenzoxazine (BOZ) as a carbon synergist anddiethyl-phosphate aluminum (ADP). Their synergistic flame retardant effects and mechanism were investigated by means of UL94 vertical burning rating, limiting oxygen index(LOI), cone calorimeter test（Cone）, thermogravimetricanalysis(TGA) and scanningelectronmicroscope(SEM).The results showed that BOZ and ADP had good synergistic flame retardancy in PA66. Introducing proper amount of BOZ can not only improve the flame retardancy of the PA66 composites, but also significantly enhance the thermal stability especially the initial decomposition temperature. Moreover the mechanical properties of the composites are not much worse. When 0.3wt%BOZ and 7.7wt%ADP were added, the ADP/BOZ/PA66 composites reached UL94 V-0, LOI arrived to 32.8%, and their tensile strength and bending strength were 81.52MPa and 111.11MPa respectively. The study of flame retardant mechanism showed that both ADP/BOZ and ADP are dominated by gas phase flame-retardant mechanism and accompanying simultaneously condensed phase flame-retardant mechanism.

Abstract:Waterborne hydroxyl polyacrylate(hs-WA) was synthesized by semi-continuous solution polymerization,with methyl methacrylate(MMA),butyl acrylate (BA), acrylicacid（AA）and hydroxypropyl acrylate（HPA）as comonomers, the benzoyl peroxide (BPO) as intiator，ethanol as co-solvent and triethylamine(TEA) as neutralizer.Then, the quaternary ammonium salt antibacterial agent 3-(methoxysilyl)propyldimethyloctadecyl ammonium chloride (TSA) was introducedand reacted with hs-WA to synthesize an antibacterial waterborne hydroxy polyacrylate (hs-WAT).The samples were characterized by FTIR, 1HNMR, contactangle, SEM, TG, andDSC.The antibacterial properties of the samples were tested by colony counting method and inhibition zone method.The test results were as follows: the TSA was demonstrated to have chemical linkage reaction with hs-WA;After the introduction of TSA and hs-WA reaction, the surface morphology of the resin has not changed; The water contact angle increased from 78.5o to 87.5o, which showed the improvement in surface hydrophobicity; The introduction of TSA enhanced the sample thermal stability with the decomposition temperature is between 299 °C and 456 °C ;The Tg of the resin decreased from 13.5 °C to 8.3 °C,causing the polymer chains become more flexible. Moreover,it was found thaths-WAT sample films with 4% TSA mass fraction(based on the solid content of the resin) showed higher than 99.9% effective against Gram-negative bacteria (E. coli) and Gram-positive bacteria (S.aureus)respectively and no inhibition zoneformed,which proved thatTSA did not migrate and hs-WAT conformed to non-permeable contact antibacterial mode.

Abstract:The preparation technology of a pre-dispersed C.I. Pigment Yellow 14 with hydrophobic properties was studied. Polyethylene wax was added to the aqueous dispersion while the coupling reaction was finished. The effects of mass ratio, heating temperature, heating time, stirring speed, pH value and particle size of polyethylene wax were investigated．A pre-dispersed C.I. Pigment Yellow 14 which has a diameter of 1-2mm, uniform size and a nuclear-shell structure was prepared under optimal conditions: mass ratio of 1:1, heating time of 20min at 80℃, 40-60 mesh polyethylene wax, pH=7, stirring speed of 250r/min. The pre-dispersed pigment is easy to separate from the water phase. The water content decreases from 79.29% to 59.85%. The filtration time is shortened by twenty times. The FPV is reduced from 0.75MPa/g to 0.06MPa/g, and the dispersion is greatly improved. The obtained pigments do not need to be crushed by high shear force and result in the reduction of the dust and energy. The preparation method meets the application requirements and reduces the cost. The present technology has a great benefit for environmental protection and is easy to industrialize.

Abstract:Tri-functionality polyNIMMO was synthesized by polymerization of NIMMO (3-nitratomethyl-3-methyloxetane) in the presence of trimethylolpropane catalyzed by BF3•OEt2. Then, alkenyl polyether energetic binder was synthesized by polymerization tri-functionality polyNIMMO and AGE (allyl glycidyl ether). The polymer was characterized by FTIR and NMR. Moreover, the mechani-cal properties and thermal properties of elastomer prepared with allyl polyether energetic binder and tetramethyl-terephthalobisnitrile oxide (TTNO) were investigated. The results show that the energetic binder has low viscosity (20℃, 8.93 Pa•s), low Tg(-57.4℃), and can be cured under room temperature; The molar ratio of —CNO and C═C was defineted as R, and when R=1.0, the tensile strength of the elastomer is 0.80 MPa and exothermic peak at 202℃.