Abstract:The catalyst nanosized TiO2 was synthesized in the EbCDAB/ n-hexanol / water microemulsion .The structure and surface morphology was characterized by TG, XRD, FI-TR, and TEM methods. The photocatalytic degradation of methyl orange was used as a probe reaction to evaluate their photocatalytic activities using UV-light irradiation comparing with P25.The results indicated that compared with TiO2 synthesized in the CTAB microemulsion, these samples possessed smaller particle size, higher thermal stability and crystal stability. It was also found that the anatase phase can be maintained quite well even after calcination at 700 ℃.In additional，the photocatalytic activities for these samples had better photoactivity than P25.The smallest size particles and the highest photocatalytic activity was obtained when the mass ratio of n-hexanol to EbCDAB was 6:3．Under optimum condition, 82.6% decolorization of methyl orange could be achieved within 60 min UV irradiation.

Abstract:The powders of Li4/3Ti5/3O4/Ag composite were prepared by sol-gel technique. Phase identification, surface morphology and electrochemical properties were studied by X-ray diffraction, scanning electron microscopy, galvanostatic charge-discharge experiments, and electrochemical impedance spectroscopy. The results show that the Ti-O band is not affected by the addditive of Ag. Li4/3Ti5/3O4/Ag and Li4/3Ti5/3O4 have very similar crystal lattice parameters. Ag does not enter the Li4/3Ti5/3O4 crystal and disperses homogeneously in Li4/3Ti5/3O4 particles. Compared with Li4/3Ti5/3O4, Li4/3Ti5/3O4/Ag composite has higher specific capacity, higher columbic efficiency and lower polarization. The additive of Ag have little effect on the lithium ion diffusion of Li4/3Ti5/3O4. The capacity loss of Li4/3Ti5/3O4/Ag is smaller than that of i4/3Ti5/3O4 during cycling. The additive of Ag greatly improves the cycleability of Li4/3Ti5/3O4 powders, especially at higher charge-discharge rate.

Abstract:The chloromethylation research of highly crosslinking degree non-polarity macroporous absorption resin D101 was performed by using self-made 1, 4-bis(chloromethoxyl)butane(BCMB), as the chloromethylation reagent and adopting anhydrous zinc chloride (ZnCl2) catalyst. The optimal conditions at 50 ℃ for 14 h in Lewis acid (ZnCl2) catalyst for chloromethylation of resin were found as follows：m(D101) : m(BCMB) : m(CCl4)=1 : 4 : 18.6, swelling time 12 h, the chlorine content of resin was 4％, providing experimental basis for resin modification, functionality and further studying adsorption separation research.

Abstract:Attapulgite clay(ATP) from Xuyi was purified by a wet method then treated with NaOH and 1 mol/L，2 mol/L and 3 mol/L solutions of HCl. Transmission electron microscope(TEM) and X-ray diffraction (XRD) were used to characterize the ATPs of different treated methods, and then specific surface, pore volume and Zeta potential were deteremined as well. Results showed that wet purification could remove most of impurities without destroy composition and fiber structure of ATP. Treatment of 3 mol/L hydrochloric acid could dissolve some element of ATP so much as form SiO2 and destroy fiber structure to clips. Adsorption experiments of 0.01 mol/L Fe3 , Ni2 and Cr2O72- on ATP removed from aqueous solutions were done. Absorbents were original ATP, purified ATP or ATP treated with sodium hydroxide, 1 mol/L，2 mol/L and 3 mol/L solutions of hydrochloric acid. Influences of treatment methods and kinds of ion on adsorptive ratio were studied. The results showed that Fe3 and Ni2 had higher adsorptive ratio on ATP than Cr2O72- , and adsorptive ratios had close relationship to Zeta potenial of ATP.

Abstract:Two binary complexes Eu(AA)3,Eu(MA)3 and two ternary complexes Eu(AA)3Phen, Eu(MA)3Phen were synthesized by the reaction of Eu2O3 with acrylic acid (HAA), methacrylic acid (HMA) and 1,10-phenanthroline(phen).The four complexes were characterized by elemental analysis, FT-IR, fluorescence and thermal analysis. It shows that the complexes have excellent thermal stability and fluorescence intensity. The ternary complexes have a significant increase in the luminous intensity compared to the binary complexes. The copolymers emit characteristic fluorescence of Eu3 and the fluorescence intensities increase with the increase of the concentration of the complexes in the copolymers. At the same time, there is no concentration quenching. The copolymers copolymerized with binary complexes have stronger luminous intensity than the copolymers copolymerized with ternary complexes under maximum solubility because the solubility of the ternary complexes in the mixture of MMA and HMA are less than the binary complexes.

Abstract:An amphiphilic N-octyl-O-poly (ethylene glycol) chitosan was prepared by grafting successively octyl groups onto amino groups at C-2 position as hydrophobic moieties and polyethylene glycol (PEG) groups onto hydroxyl groups at C-6, C-3 as hydrophilic ones. A certain amount of –NH2 was retained in the structure of chitosan derivatives through protection by phthalic anhydride. The chemical structures and degree of N- and O-substitution of chitosan derivatives were characterized by FT-IR, 1HNMR and elemental analysis, respectively. The amphiphilic property for convenient self-assembly and the preserved –NH2 groups for progressive chemical cross-linking make the resultant N-ocyl-O-PEG chitosan soluble in water and potentially applicable in preparing stable chitosan hollow microspheres as drug-carriers.

Abstract:Abstract: In this paper, a new method to produce hydropbic silica aerogels was introduced. SiO2 alcogels were prepared by tetraethoxysilane (TEOS) via two-step acid-base sol-gel process,then the solvent was exchanged and surface was modified by ethanol/hexmethyldisilazane/hexane, and finally dried at ambient pressure. The structure，appearance and properties of the silica aerogels have been investigated by FTIR, XRD, TG-DSC,F-SEM, BET. The results showed that one-step solvent exchane and surface modification process can reduce the time from 6 days to 3 days , the aerogels have high surface area,can be as high as 842.63m2/g. The density of the aerogels is low(130kg/m3),the diameter of particle size is about 15nm.the diameter of the pore sizes is in the range of 2-150 nm.The aerogels show an excellent hydrophobic feature.

Abstract:The HDI trimer (HT) modified aqueous polyurethane dispersions(HPUD) were synthesized and the effects of the contents of HT on the water- and solvent-resistance, the degree of crosslinking, hardness, gloss and surface drying time of the HPUD films were discussed. The particle sizes and its distributions, structures and thermal stability of HPUDs and its film were characterized by dynamic light-scattering technique (DLS), infrared spectra (IR) and thermal gravimetric analysis (TGA), respectively. The results show that introducing 5–10 wt% of HT into PUD improve surface dry rate and crosslinking degree of HPUD films, the HPUD films with 10% HT possess better performance including 45 min of the surface drying time, 80% of the crosslinking degree, 78% and 7% of the alcohol- and water-absorption rate. On the other hand, HPUDs display faster film hardness increasing rates and slightly lower final films hardness than those of the common PUDs without HT modification. DLS analysis results show that the particle sizes and its distributions increase and storage stability decrease with increasing the HT content in the HPUD up to 20% during the storage process. TGA curves indicate that the HPUD films possess good thermal stability.

Abstract:Abstract: (2, 3-epoxypropyl) dimethyl-ammonium chloride (DMAC) was synthesized with N, N -dimethyl dodecylamine and epichlorohy as raw material in this article Secondly. The LAS was prepared by the DMAC with SL. Through the orthogonal experiment, the optimal preparation condition was investigated: using acetone as the solvent, n (SL)：n (DMAC) was 1：1.1, reaction time was 3h, reaction temperature 55℃, pH value was 12. The nitrogen content of LAS reached 2.25%. The structure of the production was characterized by FT-IR spectrum, UV and elementary analysis. The surface activities of the product were measured: critical micelle concentration (CMC) 3g/L, their surface tension was 21.11mN/m, HLB was 10. The results showed that LAS exhibited a higher surface activity. Key words: Lignin; amphoteric surfactant; physic-chemical property

Abstract:Sodium 2-acrylamido-octyl sulfonate (NaAMC8S) was synthesized by using acrylonitrile and 1-octene as main raw materials. The optimum technology conditions are n(1-octene):n(acrylonitrile):n(fuming sulfuric acid)=1:6:1, reaction temperature 25 ℃, reaction time 24 h, the yield 82.2%(by 1-octene dollars). The structure of NaAMC8S was characterized with FTIR, 1HNMR, HRMS and EDS. The critical micelle concentrations at different temperatures were measured using methods of surface tension, conductivity and steady state fluorescence measurements, respectively. The experiment results show that the critical micelle concentration (cmc) of NaAMC8S is 44.75 mmol/L(by conductivity method) and 51.76 mmol/L(by surface tension method) at 25 ℃, and the according surface tension is 50.61 mN•m–1. Besides, the critical micelle concentrations of NaAMC8S do not change nearly with temperature.

Abstract:A series of supported MoO3 catalysts were prepared by an equivalent-volumetic impregnation method with MoO3 loadings ranging from 1 to 30 wt%, with SiO2 and Al2O3 as the carrier. The samples were characterized by X-ray diffraction (XRD), specific surface area measurements (BET), temperature-programmed desorption (NH3-TPD). The catalytic esterification of acetic acid with ethanol was carried out in a three-neck flask at 90-100℃.The results clearly revealed that MoO3/SiO2 and MoO3/Al2O3 catalysts were active and selective towards the formation of ethyl acetate. The MoO3/SiO2 catalyst containing 5 wt% MoO3 was the most active and selective one. The results emphasize the importance of the porous structure together with the weak acidic sites of the prepared catalyst towards ester formation.

Abstract:A series of Cu/Zn catalysts were characterized by XRD, TPR and BET techniques. The catalytic activity and lifetime of these catalysts were investigated in hydrogenation of maleic anhydride to γ-butyrolactone. Addition of activited carbon into Cu/Zn catalysts could decrease the reaction temperature to 240 ℃. At the optimum condition, which LHSV was 0.1h-1 and ratio of H2/ MA was 50, the conversion of maleic anhydride was 100%, selectivity of γ-Butyrolactone was 93.28% as well as catalyst lifetime was more than 2000 hours.

Abstract:The synthesis of 1, 2-propanediol by selective hydrogenolysis of glycerol over the Cu-H4SiW12O40/γ-Al2O3 catalysts in a fixed-bed reactor was investigation. It was found that lower liquid hourly space velocity may promote the glycerol conversion but reduce the selectivity of 1, 2-propanediol. The loading of H4SiW12O40 on the catalyst exhibited a significant on glycerol conversion and a maximum glycerol conversion was obtained at the H4SiW12O40 loading of 5%. NH3-TPD and H2-TPR suggested that Cu-H4SiW12O40/γ-Al2O3 acted as a bi-functional catalyst in the reaction: glycerol dehydration to dehydrated intermediates over H4SiW12O40/γ-Al2O3 and the following hydrogenation over Cu.

Abstract:2-ethylhexyl-3-(4-hydroxy-3-methoxyphenyl)acrylate was synthesized from 4-hydroxy-3-methoxybenzaldehyde and diethyl malonate by Knoevenagel condensation under the catalysis of amion acid in isooctanol. We study the factors such as ratio of feed, and the amount of glycin and reaction time on product yeild. The best reaction condition: Stating from 6.08 g (0.04 mol) 4-hydroxy-3-methoxybenzaldehyde, n(diethyl malonate) /n(4-hydroxy-3-methoxy- benzaldehyde) = 1.4，n(glycin) /n(4-hydroxy-3-methoxybenzaldehyde) = 0.15, n(isooctanol) /n(diethyl malonate) = 12, and reacting for 8h, the yield of 2-ethylhexyl-3-(4-hydroxy-3- methoxyphenyl)acrylate was 75.2%. Its structure was characterized by 1HNMR and IR.

Abstract:The synthesis of trimethylolpropane trisalicylate was implemented.Under the protection of nitrogen,trimethyl-olpropane trisalicylate was synthesized by direct este-rification process when trimethylolpropane and salicyl- ic acid was used as reactants, the product was analyzed by IR、1H-NMR、MS. The structure of the target product was confirmed. The influencing factors, such as tempe- rature, catalyst, molar ratio of salicylic acid to tri-methyololpropane and reaction time were studied.The op- timum reaction conditions were obtained as follows: tosic acid as catalyst, molar ratio of the carboxyl of salicylic acid to the hydroxy of trimethyolpropane 1:0.7, reacting in N2 for 6 h at 160 ℃. Under the optimum con- ditions the yield of the product reached 99.5 %. The anti-bacterial properties of the esters were studied, the results showed that: the trimethylolpropane trisalicylate has the very obvious inhibitory effects to Escherichia coli.

Abstract:The chloromethylation of 2-chloro-thiophene and paraformaldehyde to 2-chloro-3-chloromethyl-thiophene in the catalysis of different ionic liquids，[C2mim]Br，[C3mim]Br，[C4mim]Br，[C5mim]Br，[C6mim]Br，[C7mim]Br，[C8mim]Br，[C12mim]Br，[Bmim]PF6，[Bmim]BF4，[Bmim]C4F9SO3 and [Bmim]Cl was studied. The result showed that as a phase transfer catalyst ionic liquid could promote the chloromethylation of 2-chloro-thiophene. [C4mim]Br and [C8mim]Br had best catalytic activities. The influence factors, such as the dosage of catalyst, reaction temperature, reaction time and the amount of paraformaldehyde were discussed. Under the best conditions, the dosage of catalyst [C8mim]Br was 5%, 40癈, 8h, good yield was got in 92.1%. The chloromethylation of 2-chloro-thiophene promoted by ionic liquids is with the characteristic of few catalyst, high yield and easy products separation.

Abstract:The Co-coated LiMn2O4 powders were synthesized by electroless plating. The phase, surface morphology and electrochemical properties of the synthesized powders were characterized with x-ray diffraction, scanning electron micrograph, electrochemical impedance spectroscopy and galvanostatic charge-discharge experiments. The Co-coated LiMn2O4 shows a coarse surface with a lot of holes. The specific capacity of Co-coated LiMn2O4 is 112 mA•h/g , which is slightly smaller than 123 mA•h/g for uncoated LiMn2O4. The capacity retention of Co-coated LiMn2O4 is 96.8% and 91.7% respectively after being cycled 20 times at room temperature and the temperature of 55℃, which are much higher than the values of 85.8% and 76.2% for the uncoated one.

Abstract:mono-trimethylolpropane trimaleate(MTPTM) was prepared by esterification from trimethylolpropane(TMP) and maleic anhydride(MA). MTPTM was employed as allyl branching monomer to copolymerize with methacrylic acid to prepare hyperbranched copolymers(HBCs). The structure of MTPTM was characterized by 1H NMR and 13C NMR. The effects of feed ratio on HBCs properties including molecular weight and its distribution, aqueous solution viscosity, thermal stability and glass transition temperature were investigated. The results indicated: with n(MTPTM)/n(MAA) increasing from 1:3 to 1:15, HBCs molecular weight and its distribution showed a minimum(Mw=2.09×104，Mw/Mn=1.66) for n(MTPTM)/n(MAA)=1:9, aqueous solution viscosity manifested the same trend with a minimum at n(MTPTM)/n(MAA)=1:6, glass transition temperatures, however, showed an reverse trend with a maximum (Tg=274.5℃)for n(MTPTM)/n(MAA)=1:9. Increasing of MAA molar ratio was helpful to the enhancement of HBCs thermal stability.

Abstract:Abstract: 2-Hydroxy-3-butoxypropyl starches (HBPS) were synthesized by environmentally friendly process using butyl glycidyl ether(BGE) as hydrophobic reagent, water as solvent and sodium hydroxide as a catalyst. The reaction conditions were investigated and optimized. Optimum conditions were obtained as follows: n(BGE):n(AGU)=0.615, amount of solvent was m(H2O):m(AGU)=2:1, amount of catalytical NaOH was n(NaOH):n(AGU)=0.5:1, reaction time was 5h, reaction temperature was 75 ℃, molar substitution (MS) of 2-hydroxy-3-butoxypropyl was up to 0.45, the reaction efficiency(RE) was 73%. The HBPS and corn starch were characterized by IR, 1H-NMR and 13C-NMR. In addition, the TG result indicates that hydrophobic modification can improve the thermal stability of stach .

Abstract:A kind of hybrid of silicon-phosphorus was prepared via the hydrolysis and polycondensation reaction of silica sol and phosphorus-containing silicon coupling agent which was synthesized by 3-glycidoxypropyl trimethoxysilane and phosphoric acid. A cured epoxy resin containing hybrid of silicon-phosphorus was prepared by the in situ curing of the bisphenol-A type epoxy resin and 4,4'-diaminodiphenylmethane with the hybrid of silicon-phosphorus. Determinations of differential scanning calorimetry, thermogravimetric analysis, limited oxygen index and tensile testing were carried out to characterize the cured products. The results showed that the limited oxygen index of the curd epoxy resin containing hybrid of silicon-phosphorus was 28.2, Tg=178℃, higher than those of pure epoxy resin by 25% and ,18℃, respectively. The residual char yield under 700℃ and the temperature of 50% weight loss increased, but the tensile strength descended rarely. Compared to the pure epoxy resin, he cured epoxy resin containing hybrid of silicon-phosphorus possessed flame resistance and the thermal properties were improved.

Abstract:Cationic fluorinated acrylate polymer emulsion was prepared by emulsion polymerization of styrene (St), Methacrylatoethyl trimethyl ammonium chloride (DMC), butyl acrylate (BA), 2-hydroxyethyl acrylate (HEA), Perfluoroalkylethyl methacrylate (FM) using poly(vinyl alcohol) (PVA) as emulsifier and using Fe2+-H2O2 as initiator. FT-IR, 1H-NMR, TEM, DSC and contact angle measurements characterized the polymer structure, particle size and morphology of the emulsion, surface property of the film, respectively. The results show that the emulsion presents monodisperse and particles size is 90-100nm. The surface free energies of the copolymer films decrease with increasing the concentration of FM. Annealing treatment enhanced the enriching tendency of fluorine-containing group at copolymer-air interface and decreased the surface free energies.

Abstract:A Gemini quaternary ammonium salt fabric softener with ester bond was synthesized from 2-dimethylaminoethanol, stearic acid, octadecyl dimethyl amine(DMA18), hydrochloric acid and epichlorohydrin(ECH). The effects on the reaction process were investigated by the single factor and orthogonal experiment. The optimum conditions of dimethyl stearic acid ethyl tertiary amine were obtained as follow: n(2-dimethylaminoethanol):n(stearic acid)=1.15:1, reaction temperature 100℃~110℃, reaction time 7h, , m(toluene):m(2-dimethylaminoethanol)=1.3:1, w(sub-phosphoric acid)=1.0%, the yield is over 96.6%; The optimum conditions of intermediate ammonium chloride were obtained as follow: n(ECH): n(DMA18)=0.95:1, w(isopropyl alcohol)=50%, reaction temperature 40~50℃, reaction time 60 min, the yield is above 90.9%; The optimum conditions of ester Gemini quaternary ammonium salt fabric softener were obtained as follow: n(intermediate ammonium chloride): n(dimethyl stearic acid ethyl tertiary amine)=1:1.1; reaction temperature 100℃; reaction time 10h, the yield is beyond 95.3%. The synthesis had been proved successful in Henan Titaning chemical Co.Ltd in a 500L pilot test.

Abstract:A new flocculant of Polymeric Iron Aluminum (HF) was prepared by using Al2O3,CaCO3, FeCl3 and study on the factors of effect the basicity of polymeric iron aluminum flocculant such as calcination temperature and acid-soluble time during polymerization .The optimum conditions for the synthesis was got through experiments:Al2O3/CaCO3=3:2, was 2h,Ca3(AlO3)2/HCl(g;mL)=5:16, was 1200 ℃,the dosage of FeCl3 ? 6H2O was 0.6g . Keywords：flocculant; Polymeric Iron Aluminum (HF); CTMP wastewater