Abstract:Sulfomethylated alkali lignins（SAL）with different sulfonic group content were prepared from acid precipitated alkali lignin（AL）through high temperature sulfomethylation. The influence of reaction condition on the sulfonic group content of SAL was studied. The high temperature stability and fiber staining were tested. SAL with different sulfonic group content were obtained by adjusting the dosage of Na2SO3 under the optimal modified conditions that the w (AL) was 25.0%，reaction Sulfomethylated alkali lignins（SAL）with different sulfonic group content were prepared from acid precipitated alkali lignin（AL）through high temperature sulfomethylation. The influence of reaction condition on the sulfonic group content of SAL was studied. The high temperature stability and fiber staining were tested. SAL with different sulfonic group content were obtained by adjusting the dosage of Na2SO3 under the optimal modified conditions that the w (AL) was 25.0%，reaction temperature was 180℃，reaction time was 4h，pH of solution was 11.0，n(Na2SO3)∶n(CH2O) was 3.5∶1. SALs with the sulfonic group content of 1.2~1.4 mmol?g-1 possesses good comprehensive performance, especially outstanding high temperature stability. The lowest average article size of dye dispersant after 130℃ treatment is 14.347μm，which is far less than those of commercial dye dispersant UNA（86.125μm）and NNO（59.886μm），however，they introduce some staining to fibers.

Abstract:The complex [Zn2(MPP)2(CH3COO)2]•H2O was synthesized by the reaction of 3-methyl-1-phenyl-5-pyrazolone (HMPP) with zinc acetate. The complex was characterized by means of elemental analysis, infrared spectrum, 1H NMR, thermal gravimetric and differential thermal analyses, and scanning electron microscope. The electrochemical behavior of the complex was investigated by cyclic voltammetric method, finding that the electron transfer process was quasi-reversible. The interaction of the complex with Bovine Serum Albumin (BSA) was studied by UV-vis spectroscopy, indicating that the complex combined to BSA by hydrogen bonding and Van Der Waals forces. The adsorption results of the complex to Pb2+ showed that the removal of Pb2+ was up to 99.74% within 40 min using the complex as absorbant.

Abstract:chitosan derivative—quaternary ammonium salt of chitosan (HTCC)was　obtained by chitosan(CTS)with (3-chloro-2-hydroxypropyl)trimethyl ammonium chloride(CTA). Blend with polyvinyl alcohol(PVA)derivative to obtain quaternary chitosan membrane material(HTCC-PVA). The membrane material was immersed in a concentration of iodine solution prepared in quaternary chitosan film complex with iodine(HTCC-PVA-I2). Its structure was characterized by means of IR, SEM and XRD, etc．The analysis of iodine content shows that the higher mass fraction of HTCC in membrane material the more adsorption of iodine.The antimicrobial test results show that the antibacterial diameters of the HTCC-PVA-I2 membrane against E.coli and Staphylococcus aureus were ( 23?) mm and (28?) mm ,indicating its significant bacteriostasis degree.

Abstract:The high-oriented ternary precursors NixCoyMn1-x-y(OH)2 with a hexagonal morphology have been obtained via a hydrothermal method by using hexamethylenetetramine (HMT) as directing agent at different temperature. A NaCl/KCl molten salt method was used to calcine the highly oriented Li-rich cathode material. The results of XRD and SEM show that the obtained Li-rich material has a highly (003) orientation and good layer structure. The initial discharge capacity of the material is 282.5 mAh/g at rate 0.1C; When the rate changes to 1C, the discharge capacity decline to 178.8 mAh/g from 195.7 mAh/g after 30 cycles. When the rate changes to 2 C and 5 C, the discharge capacity respectively is 150.6 mAh/g and 110.0 mAh/g. The materials have good cycle stability and rate performance.

Abstract:Spinel LiMn2O4 was synthesized by densified chemical manganese dioxide and electrolytic manganese dioxide. The phase identification, surface morphology and electrochemical properties of the synthesized powders were characterized with x-ray diffraction, scanning electron microscopy, cyclic voltammetry and galvanostatic charge-discharge experiments. The LiMn2O4 powders prepared by densified chemical manganese dioxide and electrolytic MnO2 shows similar X-ray diffraction patterns. When discharged at the rates of 0.2C, 0.5C, 1C, 2C and 3C, the capacity of LiMn2O4 powders prepared by densified chemical manganese dioxide is 108.5 mAh/g, 104.7mAh/g, 97.3mAh/g, 86.5 mAh/g and 70.7 mAh/g，respectively, while the one prepared by electrolytic MnO2 is 106.1 mAh/g, 103.4mAh/g, 99.1mAh/g, 89.2mAh/g and 75.5mAh/g. There are no obvious difference in the cycling behavior between the LiMn2O4 prepared by densified chemical manganese dioxide and electrolytic MnO2. The densified chemical manganese dioxide can produce LiMn2O4 with good electrochemical performance as the one prepared by electrolytic MnO2.

Abstract:An ammonium Gemini surfactant (C18-6-C18•2Br-) was synthesized from N,N-Dimethyloctadecylamine and 1,6-dibromohexane. The surfactants were characterized via IR spectra, 1H NMR spectra and elemental analysis，and the results prove that they are all the objective products．The critical micelle concentration of C18-6-C18•2Br- and Octadearyl dimethyl ammonium chloride (1831) were characterized by surface tension. The results indicate that C18-6-C18•2Br- has good surface active,and its critical micelle concentration is 2.13×10-5mol•L-1, The critical micelle concentration of C18-6-C18•2Br- was lower than the critical micelle concentration of a magnitude of octadearyl dimethyl ammonium chloride (1831).Study on clean fracturing fluid using C18-6-C18•2Br-, sodium salicylate and potassium chloride was done inlaboratory. The experimental results show that Gemini surfactants can be formed stable micelles at low concentrations.in high temperature, and it has good resistance to shear capacity, at 110 ℃ in 170 s-1 shear rate, shear continuous 60 min, viscosity remains at 60 mPa•s at least; has good performance of gelout, Fracturing fluids encountered kerosene and salt water can quickly break the glue, and the residue is almost zero, with a small formation damage; Core damage experiment shows that formation damage is small of this fracturing fluid system. The fracturing fluid hsa good heat resistance and viscoelastic.

Abstract:Cashew phenol ether ammonium sulfate/n-butanol/alkane/water pseudo-three phase diagram, emulsifying properties and foaming properties have been investigated. The results show that, cashew phenol polyoxyethylene ether ammonium sulfate/n-butanol/alkane/water system pseudo ternary phase diagram can form little range of liquid crystal area and a wide range of O/W microemulsion region. Emulsify property was enhanced with increasing water hardness, and emulsified order is hard water>0.5 mol?L-1 sodium chloride>0.1 mol?L-1 sodium chloride>deionized water, and cashew phenol polyoxyethylene ether ammonium sulfate had low foaming property.

Abstract:Magnetic agarose microsphere was prepared by reverse-phase microemulsion method, and its surface was modified with epoxy groups to immobilize angiotensin converting enzyme (ACE). The factors that influence the immobilization of ACE were investigated. The optimum immobilization conditions were: ACE concentration of 8 mg/mL，pH=7.8，temperature 50℃, immobilization time of 2h, with a optimal specific activity of 0.128 U/g spheres. The properties of magnetic immobilized ACE were studied. The optimal catalytic pH of the immobilized ACE was 8.3 and the optimal temperature was 42℃. The pH tolerance and thermal stability of the magnetic immobilized ACE and free ACE were also evaluated, the enzyme activity retention rate after keeping at pH=5 for 1h were 62.1% and 40.7%, respectively, and the retention rate were 95.7% and 89.2% at pH=9. The immobilized enzyme still kept 50.2% of the original activity at 60 ℃, as the compared with the free enzyme was 20.7%. After 30 days storage at -20℃, the immobilized ACE activity remained 90.3%. 53.0% of the initial activity remained after recycled for 10 times. The result shows that magnetic immobilized ACE has a good application prospect due to its quick repeated recycling under an additional magnetic field.

Abstract:Choose lye as extraction solvent, protein from seed of Trichosanthes kirilowii Maxim was extracted by ultrasonic technology. The optimal ultrasonic-assisted extraction technology was determined by single factor experiment and orthogonalexperiment. Meanwhile，antioxidant activity of protein t on DPPH free radical and hydroxyl radical was evaluated. Results showed: the optimal ultrasonic-assisted extraction technology of protein in seed of Trichosanthes kirilowii Maxim was: lye as extraction solvent of pH 10 including 0.7 mol/L NaCl, material-to-liquid ratio of 1:30 (g:mL), ultrasonic power of 200 W , ultrasonic-assisted extracting time about 30 min and extraction temperature at 70℃. The extraction rate of protein reached about 22% with the optimal ultrasonic-assisted extraction technology. When the protein concentrationt was 0.8 mg/mL, the scavening rate on DPPH free radical and the scavening rate on hydroxyl radical were 66.46%, 49.23% respectively.The scavenge capability of DPPH free radical and hydroxyl radical increased along with the increase of the protein concentrationt, it was superior to citric acid but inferior to ascorbic acid.

Abstract:A series of NiWB-M/CNTs-A catalysts were prepared by ultrasonic impregnation chemical reduction method for the conversion of microcrystalline cellulose. The catalysts were characterized by means of NH3-TPD and BET. The influence of different ratio of Ni/W, loadings of NiWB in the catalyst and the reaction conditions were discussed. The BET results showed that the conversion of microcrystalline cellulose is directly related to the pore diameter of the catalyst instead of specific area of the catalyst .The NH3-TPD results showed that Strong acid centers of the catalyst play a critical role on the conversion of microcrystalline cellulose .The conversion of microcrystalline cellulose was up to 100%, the yield of ethylene glycol was 57.66% and the yield of hexitols was about 10% under the optimum conditions of 250 ℃, H2 pressure 6.0 MPa for 2.0 h.

Abstract:A novel catalyst Nb2O5/TiO2 with hierarchical structure was prepared using rape pollen as template, which exhibited good activity in oxidation of alcohols under photo irradiation. The reactions can be carried out under solvent-free conditions with O2 as oxidant and TEMPO (2,2,6,6-Tetramethyl-1-piperidinyloxy) as co-catalyst. The entire reaction process is green and environmentally friendly .The results show that 31 mmol benzaldehyde could be obtained from 10 mL benzyl alcohol. 33% of yield and 98% of selectivity were achieved in this catalytic system. Due to the hierarchical structure and existence of Nb2O5, selectivity improvement was achieved compared with that of bare TiO2.

Abstract:The structure, particle size distribution and adsorption performance of 13X zeolites obtained by hydrothermal synthesis system with isopropanol were characterized by XRD, SEM, BET, and ICP-AES etc. It is concluded that with the increasing amount of isopropanol in the synthesis system, 13X zeolites’ relative crystalline, grain size and the silica/alumina ratio are decreased; the pore volume and average pore size are increased. The samples were investigated in removing oxygenates (methanol, DME, etc.) from ethylene under the condition of 1500h-1 (GHSV) and with 1000ppm DME in the feed flow. The results showed that the samples with smaller grain size and larger pore volume had better adsorption performance, Compared with other samples, the sample synthesized from the synthesis system containing 15wt% isopropanol exhibited the best performance, the on stream lifetime reached 280min, and the coking rate was 0.71%/h.

Abstract:2, 3-Pyrazine-dicarboxylic acid cis 6-nonenol ester was synthesized from 2, 3-Pyrazine-dicarboxylic acid and cis 6-nonenol with 4-DMAP as catalyst and DCC as dehydration reagent. Its structure was confirmed by IR, 1H NMR, 13C NMR and HRMS spectra. The pyrolysis of the precursor and the application of the compound in blended cigarette flavoring were studied as well．The results showed that: (1) the synthetic product was the target compound. (2)Temperature had a great influence on the types and contents of pyrolysis of the compound；with the rise of pyrolytic temperature, the cracking degree become more and more severe．(3)Appropriate dosage of target compound in cigarette was 0.1‰, the compound can improve the smoking quality, harmonize the aroma, reduce irritation and odor and improve aftertaste.

Abstract:Carboxyl-modified block amino silicone polyether (MAn-BPEAS) was prepared using block amino silicone polyether (BPEAS) and Maleic anhydride (MAn). Chemical structure of MAn-BPEAS was characterized by IR. Then, MAn-BPEAS and BPEAS was emulsified with nonionic surfactant isomeric alcohol ethoxylates (XL) in order to achieve a translucent MAn-BPEAS and BPEAS microemulsion. The supramolecular emulsion (BPEAS/MAn-BPEAS) was got by mixing equal MAn-BPEAS and BPEAS microemulsion for electrostatic self-assembly under the guidance of the theory of self-assembly. The particle size of the emulsion micelles before and after the self-assembled was measured by Nano-particle surface potential analyzer. Then, the obtained supramolecular emulsion was applied on cotton fabric, and the fabric surface film morphologies observed by scanning electron microscopy(SEM). The applied performance of BPEAS、MAn-BPEAS and BPEAS/MAn-BPEAS emulsion was investigated.

Abstract:Abstract：Redox iniator was used to conduct the copolymerization of AM, DMDAAC and AMPS. The terpolymer was then hydrolyzed with NaOH under 85 ℃ to synthesize hydrolyzed polymer. The structure of terpolymer and hydrolysate was characterized by IR and NMR, while the thermal stability of those products was studied using TGA. The increment of hydrolysis degree not only improved the thermal stability of hydrolysate but also enhanced the apparent viscosity, plastic viscosity and yield point of drilling fluids. An optimum content of hydrolysis degree, however, was found to reduce both API and HTHP filtration to minimum values. Mud was prepared by adding hydrolyzed polymer with such an optimal proportion of COO- of 3.5 wt%, bentonite of 5 wt% and NaCl of 30 wt%. API filtration and HTHP filtration was 14.0 mL and 40.0 mL respectively, after the mud was rolled for 16 h under 200 ℃.

Abstract:The acrylate was synthesized though direct esterification firstly with PPG-400 and acrylic acid. And then an oil-soluble quadripolymer was synthesized by solution polymerization with octadecyl acrylate, styrene, acrylamide and the prepared acrylate. The chemical structure and composition of the copolymer was identified by IR spectrum and NMR. The optimum reaction conditions were obtained as follows : n(octadecyl acrylate): n(acrylamide): n(styrene): n(acrylate)= 6:1:2:1, with the initiator dosage being 1%, polymerization temperature being 80℃, and the reaction time being 6 hours. Further，the viscosity was decreased from 3008mPa.s to 895mPa.s when the dosage of viscosity reducer was 1000mg/L at 50℃.

Abstract:Abstract:The SL-AA-MA-APEG copolymer for water-based ink dispersion is synthesized by using lignin sulfonate, acrylic acid, allyl polyethylene glycol and acrylamide as monomer, ammonium persulfate as redox initiator, sodium bisulfite as chain transfer agent. The effect of different reaction conditions on the dispersing properties of copolymer for water based ink pigment has been investigated. The optimum conditions are listed as follows: the mass ratio between lignin sulfonate, acrylic acid and acrylamide is 1:4:4:1, the amount of initiator is 3.5%, the reaction time is 4.5h, the reaction temperature is 90℃. Accordingly, the FTIR proves that the Lignin is successfully grafted. On the other hand, the dispersion of the polymer was characterized and analyzed by SEM, nano particle size analyzer, Ultraviolet spectrograph and rheometer. The results show that the better dispersion effects are achieved when the copolymer mass fraction is 2.5%, the minimum-partical size is 190.1nm. In comparison with commercial WP-A10, the copolymer has a considerable anti-settling properties and optimum performance of the pigment dispersed.

Abstract:Indole croconium dye was obtained by the condensation reaction between 2,3,3-trimethylindolenine and croconic acid prepared using copper oxide as a catalyst．The binding properities of the receptors with cations such as，Na 、K 、Mg2 、Ca2 、Ni2 、Mn2 、Zn2 、Ag and Ba2 were investigated by UV-Vis spectroscopy．The results showed that the absorbance obviously decreased upon the addition of Ag to ICR ethanol/water (4:1，V/V)．Moreover，a clear color from olive green to orange．Meanwhile，the fluorescence spectra of ICR ethanol/water (4:1，V/V) were investigated with adding increasing concentration of Ag ion．It was found that the fluorescence strength of ICR ethanol/water (4:1，V/V) was quenched．The results indicated that ICR exhibited high selective and sensitive recognition towards Ag ．The cyclic voltammetry and 1H NMR were also used for the recognition study of ICR to transition metal ions．

Abstract:3-[N,N-Dimethyl-N-(methacryloyloxyethyl) ammonium] propane sulfonate (DMAPS) was synthesized from methacryloxy ethyl dimethyl amine (DM) and 1, 3-propane sultone. Amphoteric polyelectrolyte poly3-[N,N-dimethyl-N-(methacryloyloxyethyl) ammonium] propane sulfonate (PDMAPS) , which was used as dispersant for silica, was successfully synthesized by the bulk free radical polymerization of DMAPS in water solution using ammonium persulfate as the initiator and sodium hypophosphite as chain transfer agent, and used as dispersant for silica. DMAPS and PDMAPS were well characterized by FTIR, 1HNMR and GPC. Moreover, the influence of different reaction condition on the PDMAPS’s performance was conducted by the method of single factor experiment and orthogonal experiment. In order to achieve the lowest viscosity and smallest mean particle size (d50) for the silica, the optimum preparation condition were obtained as follows: the reaction temperature is 75 oC, the reaction time is 3h, the adding amount of initiator is 1.0% of the monomer, and when the adding amount of PDMAPS is 0.8% to silica, the results showed that the d50 of the dispersed silica reduced from 21.193μm to 0.449μm, which indicated that PDMAPS can be used as potential dispersant for silica.

Abstract:Six 2-amino-4H-chromene derivatives were synthesized from the substituted salicylaldehyde with cyanoacetate in the presence of water or 50% ethanol solution catalyzed by K2CO3. With salicylaldehyde and ethyl cyanoacetate as template reaction, the effect of various factors on the yield of the reaction were investigated by single factor experiments. The results showed that the goal product was obtained 94.2% yield within based on 10 mmol of salicylaldehyde, molar ratio of salicylaldehyde to ethyl cyanoacetate 1︰2.5, dosage of K2CO3 1 mmol, 20mL water as solvent and reaction time 40 min in water bath of 40℃ constant temperature. The catalyst solution can be resued for 5 cycles without significant loss of activity. When methyl cyanoacetate displaces ethyl cyanoacetate, the corresponding goal product was synthesized with the yield 90.1%. When solid 5-bromo(or chloro)-salicylaldehyde displaces salicylaldehyde at 20mL 50% ethanol solution as solvent, the corresponding target products were synthesized with the yield from 78.9%~86.6%.

Abstract:To obtain the suitable intermediates for stable arylpentazoles, six anilines with multi-electron-donating groups were synthesized. These anilines are reduced from aromatic nitro compounds by using CMC stabilized iron nanoparticles as reductant and [DMFH]H2PO4 as catalyst. This novel method improved the disadvantage of producing wastewater and iron mud and made the reaction more environmental. In addition, these anilines are reduced from azo compounds which was prepared by p-aminobenzene sulfonic acid. Energy barriers for decomposition of the arylpentazoles were also calculated by density functional theory. Based on the energy barriers, we found two main factors affected the stability of arylpentazoles: the number of electron-donating groups and different positions for electron-donating groups on the benzene ring. Results showed that 1) more electron-donating groups usually make the arylpentazoles more stable; 2) both para-substituted and meta-substituted electron-donor groups can obviously increase the stability, especially the effect of previous one is better than the latter one. Due to steric, the stability of all ortho-substituted arylpentazoles decrease.

Abstract:The oxidation of 3-carene to 3, 4-epoxycarane catalyzed by hexadecyl pyridinium peroxoheteropolyoxomolybdotungstate (Cat-PMo2W2O24) using the 30 %(wt) aqueous solution of H2O2 as oxidant has been carried. The influence of various reaction parameters such as nature of solvent, temperature, catalyst amount, oxidant amount and time on the epoxidation reaction was investigated. Under the optimum conditions(3-carene 12 mmol; chloroform as solvent 5 ml; reaction temperature 35°C; catalyst amount 2.45%(based on substrate); molar ratio of H2O2 to 3-carene, 1.1; reaction time 6 h), 99.1 % conversion of 3-carene with 94.8 % selectivity towards epoxide 3,4-epoxycarane was achieved.