Abstract:The effect of each component and their ratios of cyclohexane/ water/ Tween-80/ n-butanol microemulsion on its formation were studied, and the system’s physicochemical properties have also been characterized by conductivity, surface tension and dynamic light scattering (DLS) measurements. The results showed that the microemulsion forming area was largest by using Tween-80 as the surfactant, n-butanol as co-surfactant, and cyclohexane as oil. The conductivities of the system represented regularity along with water content increasing, and the three types of microemulsions (water-in-oil, bicontinuous and oil-in-water) could be distinguished. Different types of microemulsions had very low surface tension (about 24.6 mN/m) and small practical size (less than 100 nm), increasing along with the water content of the system. Furthermore, the osmosis of the microemulsion for wood was investigated by liquid absorption method. Compared with other solvents, microemulsions showed greater penetration ability for wood. Especially for the bicontinuous microemulsion, its osmosis for pine and eucalyptus at 10min attained 70% and 50%, respectively.

Abstract:Cyanuric chloride was used as raw material to synthesize two new bifunctional light stabllizer which have hindered amine structure——2-phenyl-4,6-[2- hydroxyl-4-(2,2,6,6- tetramethylpiperidin-4-yloxycarbonylmethoxy)phenyl]-1,3,5- triazine（Ⅳa）and 2-phenyl-4,6-[2- hydroxyl-4-(1,2,2,6,6-pentamethylpiperidin-4-yloxycarbonylmethoxy)phenyl]-1,3,5- triazine（Ⅳb） via Grignard reaction,Friedel-craft reaction,Etherification reaction and transesterification reaction.The yield of Ⅳa and Ⅳb for 37.6% and 38.1%,respectively.The structures of target compounds were characterized by FTIR,MS and 1HNMR. Ultraviolet absorption performance of target compounds was tested.The result show that target compounds have strong absorption in 270~400nm.Maximum molar absorption coefficient(εmax) of compounds Ⅳa and Ⅳb was 6.6513?04（276nm），2.8374?04（339nm）L?mol-1? cm-1 and 6.4359?04（276nm），2.6483?04（339nm）L?mol-1? cm-1

Abstract:The research progresses of cationic polymers containing dimethyldiallylammonium chloride(DMDAAC) as chain members were reviewed in this paper. With the double bonds which were able to participate in addition polymerization as the main line, the homo- and co-polymerizations of DMDAAC were summarized based on its molecular structure and physical chemical properties. The synthesis of DMDAAC-based polyacrylamide, copolymer with specific functional groups and modified natural products were discussed in detail. And the features of research work completed until now were also pointed out. Finally, it had been suggested that new polymers containing DMDAAC should be synthesized by molecular structure design and modification to meet the needs of their application indifferent fields. However, the further application researches of these polymers would be also important to promote the development of such polymers.

Abstract:Abstract:Complexes of new symmetrical binuclear 5-bromo-2-hydroxyphenyl benzophenone-methoxy benzoyl hydrazone pyridinecopper(Ⅱ) (CCDC:812579) was synthesized from the reaction of 5-bromo-2-hydroxyphenyl benzophenone-methoxy benzoyl hydrazone with pyridine and copper chloride. And develop into a single crystal. The compound was characterized by elemental analysis, TGA and the crystal structure was determined by X-ray single crystal diffraction. The crystal belongs to the orthorhombic system with space group P21/c, with a=1.62754(17) nm, b=0.83111(9) nm, c=2.35235(17) nm, β=133.779(4)º, Dc=1.639 mg/m3. Complex magnetic results show that: there is a ferromagnetic intramolecular interaction and weak antiferromagnetic intermolecular interaction.

Abstract:Chrysanthemum-like and spherical α-MnO2 particles were synthesized via a chemical co-precipitation route under acidic condition. With the as-prepared α-MnO2 as the oxidant, polyaniline (PANI)/α-MnO2 composites with different mass ratios of starting aniline to α-MnO2 have been successfully synthesized by the oxidative polymerization of aniline in H2SO4 medium. The as-synthesized PANI/α-MnO2 products were characterized by means of XRD, FT-IR and SEM. Their electrochemical properties as electrode materials for supercapacitors were investigated via cyclic voltammetry and chronopotentiometry in 1 mol/L Na2SO4 aqueous electrolyte solution. The results show that the maximum specific capacitance of the PANI/α-MnO2 composite prepared with a mass ratio of starting aniline to α-MnO2 of 1:3 is 64.58 F/g, which is 1.46 times higher than that of pure α-MnO2 when the amount of α-MnO2/PANI in the electrode is less half of that of α-MnO2. Furthermore, above 85% of the initial specific capacitance for the PANI/α-MnO2 composite can be maintained after 600 cycles, while only 57 % is obtained for α-MnO2.

Abstract:A series of novel polyimide composite films modified by silicone were synthesized from aminopropyl-end capped polydimethylsiloxane(PDMS), pyromellitic dianhydride(PMDA), and 4, 4’-oxydianiline(ODA) via thermal imidiazation. Films were analyzed and characterized by FTIR, XPS and SEM. The AO-resistant property of composite films was tested by ground atomic oxygen (AO) simulation devices. It was revealed that the AO denudation rate of composite films could be up to 6.69?0-25cm3/atom when the AO flux was up to 2.06?020atom/cm2. The AO-resistant property of composite films is about 4.5 times to pure polyimide films.

Abstract:ZnO nanoparticles with an average size of about 20-40nm has been synthesized by thermal treatment of ZnS nanoparticles in an air atmosphere. The ZnS nanoparticles has been synthesized at a low temperature of 60℃ by using zinc acetate as a zinc source and TAA as a sulfur source with the aid of ultrasonic. The as-prepared products were characterized by Fourier transformed infrared spectra（FT-IR）, Thermal gravimetric analysis and differential thermal analysis（TGA-DTA）, X-ray diffraction study（XRD）, Field-emission scanning electron microscopy（FE-SEM）, Transmission electron microscopy(TEM), EDS and Photoluminescence (PL) spectra , respectively. The results have revealed that the ZnO nanoparticles are of hexagonal wurtzite structure, of high crystallinity and the size of the ZnO nanoparticles had an decreasing trend with the increment of the ultrasonic time. The room temperature PL spectra showed three strong emissions with peaks located in the range of 400～550nm.

Abstract:The SAP (Super absorbent polymer) was synthesized by water solution polymerization. The absorbency rate was above 800g/g and the saturation point was within 50mins. The effect of the amount of the co-monomers and cross-linking agent on water-retention capacity at constant pressure and temperature was investigated. The results showed that the water-retention capacity of the SAP were above 30% after being placed at constant pressure for seven days. The results also show that the water-retention capacity increased at first and then decreased with the increase of the amount of acryl-amide and MBA. At the same time, the water-retention rate of the SAP were above 75.5 % after being placed at constant temperature (50℃) for seven hours, which demonstrated that the SPA can improve the saturated water content of the sand and the water-retention capacity of the sand efficiently and will provide the desert with excellent water-retention agent.

Abstract:The zinc(II) complexes of the amino acids Schiff bases had been synthesized by one-step solvent-free reaction with L-leucine or L-alanine, salicylaldehyde and zinc acetate as materials. The compositions and structures of the complexes had been characterized by EDTA titration, elemental analysis, IR spectrum, X-ray powder diffraction and TG-DSC analysis. The compositions of two complexes are [ZnL(H2O)]?nH2O (L = sal-ala, sal-leu). Infrared spectra and the thermal decomposition process of the complexes show the presence of coordination water molecules. The zinc ion is coordinated through the Schiff base ligands as terdentate with O, O and N donors from carboxylic, phenolic and imino groups, and O donors from water molecule respectively. The coordination numbers of zinc ion is four. Thermal decomposition of the complexes proceeds in several stages: dehydration, oxidation pyrolysis of the ligands, and the final residues are zinc oxide.

Abstract:In this paper, a biodegradable seed coating formulation was prepared, with the natural polymer chitooligosaccharide as the bactericidal component, polyvinyl alcohol and glycerol as additives. The effects of the chitooligosaccharide mass fraction, glycerol mass fraction, degree of deacetylation of chitooligosaccharide on seed coating blend membranes tensile strength, elongation, membrane permeability and other parameters were investigated. The results showed that the tensile strength and elongation of the blend membranes improve with the increase of chitooligosaccharide and glycerol mass fraction. The membrane permeability decreased with the increase of chitooligosaccharide mass fraction, but increased with the glycerol mass fraction increases. The best ratio of seed coating preparation: chitooligosaccharide 2 %, polyvinyl alcohol 4 %, glycerol 0.5 %, reaction temperature 45℃and reaction time 1 h. This seed coating has good antibacterial, sterilization, promoting seeds germinated role. Compared with blank experiment, corn seed germination rate is improved 21%. In addition, the seed coating can effective prevention pest and protection seeds, promoting seedlings healthy growth, increase crop yield. Compared with conventional beforehand sowing, yield of an acre can increase 32kg of using this seed coating to process cotton seeds.

Abstract:Abstract: Quaternary ammonium imidazoline gemini surfactant was synthesized by using epichlorohydrin as coupling agent, oleic acid as hydrophobic chain diethylenetriamine as hydrophilic chain, and structure of the gemini surfactant was characterized by IR and 1HNMR。Emulsifying power for benzene, foam stability, HLB, aqueous solution surface tension of the gemini surfactant was investigated. Dynamic laser light scattering method was utilized to characterize the particle size distribution of O/W emulsion, in which oleic acid was the dispersed phase using the gemini surfactant as emulsifier. Static weight loss method were used to evaluate the corrosion inhibition performance of the gemini surfactant as corrosion inhibitors for Q235 steel in 8 % HCl. It was shown critical micelle concentration of the gemini surfactant was 2×10-4 mol/L, γCMC was 31.40 mN•m-1, HLB was 14.2, the quaternary ammonium gemini surfactants had good surface activity, steady foam power and excellent emulsifying performance to benzene. The results of particle size distribution indicate that the latex particle dimension of O/W emulsion is between 216～236 nm with narrow distribution at emulsifying temperature 25 ~50℃, and the quaternary ammonium imidazolines gemini surfactant is a good performance O/W emulsifier. The static weight loss tests show that the inhibition efficiency of quaternary ammonium imidazolines gemini surfactant is superior to that of the corresponding single-chain quaternary ammonium imidazolines surfactant.

Abstract:A new bio-polymer composite film of bacterial cellulose was biosynthesized by Acetobacter xylinum in static cultivation. The culture medium was mainly consisted of coconut water with sodium alginate as additive. Experimental results indicated that adding low concentration of sodium alginate in the culture could increase the yield very much. When the adding amount of sodium alginate in the culture medium was 4 g/L, the yield of the dried BC film was up to 8.35 g/L which is about 2.4 times of that of the un-additive system BC film. The properties of products were determined by FTIR, XRD, SEM and TGA. The products showed significantly changes in crystalline index and some difference in mechanical property compared with the control. And their water holding capacity decreased compared with the un-additive sodium alginate BC film.

Abstract:Abstract: HZSM-5 molecular sieves modified with single-component such as P、 B、Cu、Mg and multi-component such as Mg/Si, Mg/P and Mg/P/Si were prepared by impregnation, and characterized by means of XRD, BET and NH3-TPD. Selective alkylation of toluene with methanol was investigated in a fixed-bed down-flow reactor. Moreover, the microstructure and surface acidity of modified HZSM-5 were correlated with the selectivity of para-xylene. The results showed that the HZSM-5 modified with monocomponent 20%MgO has high selectivity of para-xylene (>60%) due to the decrease of pore size and quantity of strong acid sites located in the surface of catalysts after modification; and the HZSM-5 modified with multicomponent such as Mg/P/Si has no obvious effects on the promotion of p-xylene selectivity due to the interreaction of different modifier.

Abstract:The volatile components in the extract of Trollius chinensis Bunge were analyzed by gas chromatography-mass spectrometry and the extract was used as cigarette flavor. The results showed that 28 kinds of compounds were identified, including lauric acid, myristic acid, ethyl palmitate, tricosane, dihydroactinidiolide, olenci aid ethyl, hexadecylic acid, tetradecanoic acid ethyl ester, linalool, β-ionone, 6,10,14-trimethyl-2-Pentadecanone, cis-jasmone etc; Most of the components are the important components in cigarette smoke. The smoking quality of cigarette was improved by the extract, the irritation was obviously reduced, the smoke was smoothed.

Abstract:Potassium antimony tartrate was synthesized by the solid-liquid phase reaction of antimony trioxide and potassium hydrogen tartrate. The composition and structure of the obtained complex had been characterized by element analysis, X-ray powder diffraction and infrared spectra. The results of indexes to the X-ray powder diffraction data indicate that the crystal structure of the potassium antimony tartrate belongs to monoclinic system. The lattice parameters are: a = 0.8250 nm，b = 1.6046 nm，c = 1.7736 nm，β = 96.65°. The synthetic conditions were found as following: the molar ratio of antimony trioxide, potassium hydrogen tartrate and water was 1.05 : 2.0 : 92, the temperature of reaction was 90 °C, the reaction time was 4.5 h, the product yield of reaction was 86.8%.

Abstract:Resveratrol was synthesized from 3,5-dimethoxylbenzaldehyde and 4-methoxylbenzylalcohol by thioetherification, sulphone and Ramberg-B鋍klund Reaction. The effect of different conditions on oxidation yield of thioether and Ramberg-B鋍klund reaction were discussed. The resveratrol totle yield reach to 53.94% by the synthetic routine

Abstract:Eight kinds of larger steric hindrance L-amino acid esters were synthesized by direct esterification of L-amino acid and isopropanol or isobutylalcohol with strong acidic cation resin as catalyst under microwave irradiation. The results showed that the esterification was greatly accelerated under microwave irradiation with 50~70% yields of these esters reached. The reaction time was substantially shorten to 1/48~1/72, especially for the reactant with higher polarity compared with conventional heating method. The structures of these esters were characterized by 1HNMR and IR. However, the influence of reaction conditions such as power, time of microwave irradiation and heating type on esterification was discussed.

Abstract:Starting from the 3, 4-dimethoxybenzyl alcohol, 3, 3′, 4, 5′-tetrahydroxystilbene (piceatannol) was synthesized through bromation, Arbuzov Rearrangement followed by Wittig-Horner reaction and demethylation reaction. The effects of brominating agents, the temperature of Arbuzov Rearrangement, solvent in Wittig-Horner reaction, and demethylation agents were investigated .The optimal conditions were: phosphorus tribromide as the brominating agent, Arbuzov Rearrangement conditions of 100 ℃ for 1h and then 120 ~ 130 ℃for 3 ~ 4h, dimethylformamide as the solvent in Wittig-Horner reaction , dry aluminum chloride as the demethylation agent. The structure of the target molecules was confirmed by using IR、1H and 13C NMR spectra.

Abstract:In this paper, shrimp and crab waste was used as raw material for extraction of astaxanthin. The subcritical fluid extraction process was optimized. Result shows that the best extraction reagent, temperature, pressure, static time and static cycle were dichloromethane, 100℃, 9.31-11.72MPa, 15 minutes and 2 times, respectively, under which the extraction ratio is 0.0373%. Compared with the result of traditional organic solvent extraction, the subcritical fluid extraction has 33.2% higher extraction ratio and consumes 82.8% less time.

Abstract:The particle size of disperse fluorescent dye paste was characterized by the Nano-particle size analyzer. The effects of divalent alcohol on viscosity, surface tension, moisture retention, hot storage stability, centrifugal stability, ink transfer rate and fluorescence reflectance on polyester fabric were also analyzed. The results showed that dye paste particles by the wet grinding method dispersed uniform and the particle size was 125.5nm. When divalent alcohol content was less than 15%, there were few changes in the ink viscosity; when the content was more than 15%, the viscosity increased significantly. Due to the existence of hydrogen bonding, the moisturizing properties of ink samples enhanced with the concentration of divalent alcohol increased, and the moisturizing effect of ethylene glycol was the best. Ink samples added with the 15% divalent alcohol exhibited good hot storage stability and centrifugal stability properties. Divalent alcohol was conducive to enhance the ink transfer rate and fluorescence reflectance of polyester fabric. However, the transfer rate and fluorescent reflectivity also declined as the content of divalent alcohol was excessive.

Abstract:Pig nail was used as raw material to prepare foaming agent. The effects of sodium bisulfite concentration, extraction temperature, extraction time and extraction pH on the extraction process of foaming agent were investigated. The extraction parameters were optimized by the response surface methodology. The optimum extraction conditions as follows: the concentration of sodium bisulfite was 37.06g/L, reaction temperature was 75.4℃, 6.06 hours for extraction time, and the optimum pH was 5.54. Under the optimal condition, the maximum forecasted foam stability time was 32.18h, and verified value was 32h by confirmative test. The relative error was 0.57% which illuminating the regression equation is valid and reliable.

Abstract:The process of the sealants which composed of zeolite and baked zeolite used for reinforcingfiller was described in the paper. The effect of the level of zeolite and baked zeolite on the properties of the corresponding sealants, such as thermal stability, tensile strength, elongation at break and drying time, was studied. The morphologies, components, specific surface area, porous volume and pore size distribution of zeolite and baked zeolite were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD) and nitrogen adsorption-desorption investigations (BET-BJH), respectively. The results showed that zeolite and baked zeolite were a kind of porous materials composed of aluminosilicate. Their main ingredients were KNa2Ca2(Si29Al7)O72 and K(Si3Al)O8.Their pore size, porous volume and specific surface area were 10nm and 14nm, 0.4655cc/g and 0.5871cc/g, 154m2/g and 192m2/g, respectively. The wide pore size distribution, increasing pore volume and specific surface area were benefited for reinforcement. Reinforcement effect of roasting zeolite was better than zeolite, and brought on the synergism by mineralogical effects, anchorage effect and surface modification using silane coupling agent.