Abstract:Abstract：Sustained-release antibacterial organic/inorganic composite material was prepared with TEOS，trichlosan and γ-aminopropyl triethoxy silane (KH-550), and its thermal stability was investigated. SEM, FTIR and DSC/TG methods were employed to investigate the particle morphology, surface functional group and its thermal stability. Bacteriostasis circle experiments were conducted to assess the dissolving antibacterial performance of the calcined samples. It was revealed by the results that the as-made organic/inorganic composite antibacterial material exhibited good thermal stability. The dissolving antibacterial could be partially preserved even after calcination under 300oC for 30min. The as-made samples were also applied in powder coatings, and coatings with high antibacterial ability were obtained.

Abstract:Xanthan gum-g-acrylic acid / montmorillonite (XG-g-PAA/OMMT) organic-inorganic compound composite super absorbent mateial was prepared by solution polymerisation. When the amount of montmorillonite is the quality for the 6% of acrylic acid, the water absorbency was up to 882 g.g-1, 0.9% NaCl solution absorbency reached 106.5 g.g-1. And Fourier Transform Infrared Spectroscopy (FT-IR), x-Ray Diffraction (XRD), Differential Scanning Calorimetry (DSC) and Thermogravimetric Analyzer (TGA) were used to research characterization of the compound. The results have been shown that the acrylic acid molecule linked to the molecular chain of xanthan gum through graft co-polymerisation, adding montmorillonite changed the crystal structure of XG-g-PAA. The composite super absorbent material formed a bigger space network structure, water absorption and salt resistance and thermal stability were improved. The water absorption kinetics mechanism has been discussed through studying the swelling process of composite super absorbent mateial, that mainly related to non-Fickon diffused model.

Abstract:In this paper, a compound of 5-bromo-2-hydroxyphenyl methyl ketone-4-nitrobenzoyl hydrazone (H2L) was synthesized through the reaction of 5-bromo-2-hydroxyphenyl ethyl ketone with 4-nitrobenzoyl hydrazine and ethanol. A complex of new binuclear 5-bromo-2-hydroxyphenyl (methyl) methylene-4-nitrobenzohydrazide pyridinezinc(II) (CCDC:851546) was hydrothermal synthesized through the reaction of the ligand with pyridine and zinc nitrate, and was subsequently into a single crystal. The compound was characterized by elemental analysis, IR and the crystal structure was determined by X-ray single crystal diffraction. The results show that the crystal belongs to the monoclinic system with space group P21/c, with a=1.17989(9) nm, b=1.64805(12) nm, c=1.02300(8) nm, β= 96.9670(10)º, Dc=1.751 mg/m3. Fluorescence spectra show that both the ligand and complex have fluorescent properties, the fluorescence intensity of complex has been significantly enhanced in 475.0 nm.

Abstract:The comb-like amphiphilic SMA ramification, SMA-g-O-3、SMA-g-O-6、SMA-g-O-10、SMA-g-O-15 and SMA-g-O-20, were prepared by graftying aliphatic alcohol ether onto SMA. The esterification rate was confirmed by measuring the changes of SMA and esterification product acid value. And the best conversion is over 90%. The esterification rate can reach 95.62% as the reduce of EO in aliphatic alcohol ether; The water-solubility and solution surface activity of those esterfied polymers were studied systematically by measuring the worthy before and after being esterfied, and calculating the esterification rate. The results show that the water–solubility of SMA-g-O-20 was better that others; the surface tension of sodium SMA aqueous solution decreased with the decrease of the mass concentration at 25℃, without forming a inflection point on the curve of the surface tension vs. mass concentration; however, the surface activity of motified SMA ramification is improved greatly ; SMA-g-O-15 aqueous solution exhibits excellent surface activity with a CMC of 0.008g/L and a γCMC of 26.31mN/m.

Abstract:At (30+0.2) ℃, the effect of inorganic salt, NaCl,CaCl2 and MgCl2 on solubility，cmc (Critical Micelle Concentration) and the interfacial tension of sulfonate Gemini surfactant DJ aqueous solution was investigated by the methods of direct observation, surface tension and the rotating droplets. The results showed that sulfonate Gemini surfactant DJ had highly resistance to salt while solubility was up to 20000mg /L. As the concentration of inorganic salt increased, the value of cmc and surface activity decreased below 500mg/L first, then increased when the concentration reached to 10000mg/L. With the increase of the valence of cation（Na+，Ca2+ and Mg2+）, cmc had a greater decrease and the influence of Ca2+ was more than Mg2+. Interfacial tension first descended and then rose, smoothed at last by adding inorganic salts. The low interfacial tension of sulfonate Gemini surfactant DJ appeared within a salinity range of 100-1000mg/L. The research could provide certain theoretical guidance to select out suitable surfactant for different water quality of oil reservoir.

Abstract:Reducing sugar yield and ethanol concentration was used as the indexes to probe the effect of detoxification on enzymatic hydrolysis and ethanol fermentation by using different organic solvents to extract the inhibitors from the catalyst free steam exploded corn straw as detoxification method. The reducing sugar yield varied from 34.8 to 89.7% depending on the detoxification solvents and modes. The results showed that both reducing sugar yield and ethanol concentration showed highly negative correlation to the boiling points of the organic solvents, which indicate that the solvent residue is the main reason of enzyme inactivation. However, the ethanol yield varied from 0.47 to 0.49g ethanol / g reducing sugar for the studied extractive organic solvents,，which shows that solvent residue had no significant effect on the ethanol fermentation. The highest ethanol yield (96.1% of theoretical value) was obtained with the combined extraction of ether and acetone.

Abstract:The derivatives of 5-hydroxymethylfurfural are important materials for the synthesis of biodegradable polymers. It can be formed by the dehydration of D-fructose in the presence of acid catalyst. The activity of heteropoly acid and its salts was investigated. In addition, the effect of the temperature, addition of PVP, and the charging method were studied. The results showed that elevated temperature favor high yield and the Cs salt of Phosphotungstic acid, especially CsH2PW12O40, gave good results. HMF was obtained in 77.9% yield while using 1 mol% CsH2PW12O40 as catalyst, 20 wt% PVP as addictive, and react at 155 oC for 5 min.

Abstract:Abstract: 1 - sulfonic acid cyclohexane carboxylic acid was purified by activated carbon adsorption—acid precipitation. Effects of activated carbon dosage ,solution pH, adsorption time and final ph value on 1 - sulfonic acid cyclohexane carboxylic acid purification process were studied. the results show that, at pH 6 of coarse salt solution, using activated carbon as adsorbent, addition quantity of activated carbon 1.0 g,the adsorption time was 60 min,dropped concentrated sulfuric acid to final ph value was 3, the purity of 1 - sulfonic acid cyclohexane carboxylic was extracted reached 99.8%, and the yield reached 84.8%.

Abstract:The technology of purifying of α-terpineol by batch vacuum distillation from terpineol fraction, a byproduct of eucalyptus oil, was studied. The material of terpineol fraction was analyzed by GC-MS. Based on effusing curves of the target α-terpineol and those of the main impurities of γ-terpinene, terpinen-4-ol, and trans-pinocarveol by batch vacuum distillation, effects of tower packing pretreated with water and four organic solvents on the separation of α-terpineol were investigated. In addition, reflux ratio for fractioning α-terpineol was optimized. Finally, the optimum conditions found were tower packing pretreated with water, distillation in a varied reflux ratio, and the reflux ratio kept at 6 whenα-terpineol effused, whereby α-terpineol obtained was at 129～132 oC/ 5.0 kPa in purity over 90% and recovery 50%.

Abstract:Gas chromatography with simultaneous mass spectrometry and olfactometry(GC-MS/O) was used to determine the aroma compounds of orange oil. Totally, 35 volatile compounds were detected by GC-MS, mainly including limonene(80.79%), linalool(3.85%), decanal(2.90%), β-myrcene(1.94%), α-pinene(0.82%), octanal(0.71%). A total of 8 aroma-active compounds have been perceived, which were α-pinene, octanal, limonene, linalool, α-terpineol, decanal, tetradecanal, (E, E)-2, 4-decadienal and one unknown compound. The combination of direct intensity and aroma extract dilution analysis (AEDA) was employed further, which demonstrated that α-terpineol and the unknown compound both having biggest FD factor and maximum aroma intensity contribute the most to the aroma of orange oil. It’s proved that GC-MS/O can filter out aroma compounds effectively, and the combination of direct intensity and aroma extract dilution analysis (AEDA) can help to distinguish the key aroma compounds quickly, accurately and comprehensively.

Abstract:The inclusion complex of sinomenine(SN) to hydroxypropyl-β-cyclodextrin (HP-β-CD) was prepared successfully through mixed solution method, then the crystalline morphology and micromorphology of the inclusion complex was characterized and analyzed by stereomicroscope after purification and recrystallization. Other material behaviors of the inclusion complex of sinomenine to HP-β-CD were characterized through X-ray diffraction(XRD), infrared spectrography(IR), differential scanning caborimetry(DSC) and hydrogen nuclear magnetic resonance(HNMR),and then the formation constant of inclusion complex was determined by phase solubility analysis. The results present that the inclusion complex of SN to HP-β-CD show obvious characteristics compare to SN, the inclusion complex of SN to HP-β-CD was new material form and HP-β-CD can sharply increase the solubility of SN. The molecular ratio of SN to HP-β-CD was 1:1 and the inclusion constant was calculated as 150.0 L/mol.

Abstract:Thorium(IV) complexes of bis-Schiff bases containing 2,6-pyridinediamine were synthesized by grinding solid phase synthesis method with salicylaldehyde, O-vanillin，2,6-pyridinediamine and thorium nitrate as base materials. The structures and composition were characterized by elemental analysis, method of EDTA titration, infrared spectrum, ultraviolet spectrum and TG-DTA analysis. The experimental results demonstrated that the thorium ion is coordinated through the Schiff base ligands as terdentate with O, N from phenolic, imino groups, and nitric acid root respectively. The coordination number of thorium ion is eight.

Abstract:The extraction process of maslinic acid (MA) and oleanolic acid (OA) from Olea europare L. pomace as raw material has been studied. The optimum conditions of extracting MA and OA was optimized with orthogonal experiment method by taking extraction rate of MA and OA, total extracts yield as index. The optimum extractions conditions were 10 volumes of φ=90% ethanol reflux extraction 3 h. In the above conditions, extraction rate of MA and OA were 91.27%, 94.73% respectively, and total extracts yield was 23.38%.

Abstract:The complex of molybdenum(Ⅵ) peroxo glycine was synthesized by solid-liquid state reaction with molybdenum trioxide and glycine as starting materials. The composition and structure of the complex was characterized by elemental analysis, UV spectra, infrared spectra, thermogravimetry- differential scanning calorimetry (TG-DSC) and X-ray powder diffraction. The results demonstrate that the structural formula of the complex is [MoO(O2)2(C2H5NO2)]?H2O, and the glycine is coordinated as azwitterion via one oxygen. The molybdenum(Ⅵ) atom is six coordinated by one O atom of oxo group, four O atoms from two bidentate peroxo groups and one O atom from the carboxyl of glycine, respectively. The results of indexes to the X-ray powder diffraction data indicate that the crystal structure of the complex belongs to monoclinic system. The lattice parameters are: a = 1.7763 nm, b = 1.5972 nm, c = 1.9670 nm, β = 89.15?

Abstract:This paper was carried out to investigate the chemical compositions and their quantitive analytical methods of Jingtiao propolis collected from Liaoning province for the first time. Propolis sample is extracted with 65% ethanol at 80℃，the extract is subjected to concentration under reduced pressure，solvent partition，silica gel column chromatography，recrystallization and high preparative performance liquid chromatography. Thirty one compounds are obtained and their structures are elucidated on the basis of the data of IR，UV，MS，1H-NMR，13C-NMR and physical properties. Fourteen of which are flavanoids，seven are caffeic acid analogues，six are caffeic esters，and four are other categories.

Abstract:HHydroxyethyl methylacrylate (HEMA) was grafted onto the degraded starch by grafting copolymerization using ammonium persulfate (APS) as initiator. The effect of temperature, weight fraction of APS and HEMA, reacting time on the grafting efficiency (GE) and grafting percentage (GP) were investigated. The grafting starch with 40 % GE and 27.5 % GP was obtained when w（ST）=16.4 %,w（HEMA）=5.08 %, w（APS）= 0.84 % and reacted at 50 ℃ for 5 h. The structure and properties of the grafting starch were characterized by FTIR and GPC. Applying of the grafting starch in the process of retanning endow the retanned leather an excellent increment in thickness. The leather retanned by this grafting starch with different GE and GP got the increasing properties of plump, soft, good elasticity and strong foaming feels in addition to increase in the GE and GP.

Abstract:Abstract: Sodium p-perfluorous nonenoxybenzene sulfonate was synthesized by the reaction of hexafluoropropylene trimer and sodium phenolsulfonate. The effects of reaction temperature,catalysts and the way of feeding was investigated.The experimental scheme was optimized by means of orthogonal test. The best reaction conditions was that it reacts four hours at 66℃ in the presence of Et3N, adding catalyst after sodium phenolsulfonate was completely dissolved in DMF,then adding drops of hexafluoropropylene trimer. The yield of the product reached maximum at this condition .The maximum value was 80.15%. The molecular structure of the product was identified by IR and 19NMR spectra,which show that it was in accord with sodium p-perfluorous nonenoxybenzene sulfonate. Its decomposition temperature was 350～360℃,which was provide by TG. The results of the surface activity determination show that the surface tension(γcmc)of the product at critical micelle concentration (CMC)was18.95 mN/m(20℃) and the value of CMC was 0.058kg/m3.In the end,it was added in to releasing agent to do stripping experiment. The results found that adding a little bit of sodium p-perfluorous nonenoxybenzene sulfonate can well improve its stripping effect. The biggest number of stripping reached to 43 times.

Abstract:Effects of material ratio, heating temperature, dosage of catalyst and reaction time on the conversation rate of methanol ,selectivity of methanol and purification of methylal were investigated in the process of preparing methylal with methanol , paraformaldehyde as materials and sulfuric acid as catalyst. The optimal preparation conditions were obtained by orthogonal experiment with results as follows: n(methanol):n(paraformaldehyde)=1.9, heating temperature 70℃, reaction time 2.75h, v(sulfuric acid):v(methanol) =3.5:100 and conversation rate 99.32%, selectivity of methanol 99.88%, mass fraction of methylal is 96.88%(content of methanol 3.11%, content of water less than 0.01% ).

Abstract:The cationic styrene-acrylic latex used for redispersible polymer powder was prepared by the method of seeded emulsion polymerization by using cetrimonium bromide(CTAB) as emulsifier, azobisisobutryamide chloride(AIBA) as initiator, and [2-(methacryloyloxy)ethyl]trimethyl-ammonium chloride(DMC) as hydrophilic cationic monomer and acrylamide(AM) as functional monomer while the mass ratio of DMC to AM was 1:1. The effects of polymerization temperature, the amount of emulsifier, initiator, seed monomer, and cationic monomer on polymerization reaction system and properties of latex and redispersible latex powder were investigated. The optional formulation and process condition is that the polymerization temperature is 80±2℃, the amount of CTAB, AIBA, seed monomer and DMC are 2%, 0.53%, 10% and 2% based on total monomers respectively. Then an uniform and stable latex with small particle size and narrow particle size distribution could be obtained. Redispersible latex powder made from this latex has low water content and small average particle size, and also has good redispersibility.

Abstract:Pure polyethylene glycol mono-acrylate(PEGmA) was extracted out from Polyethylene Glycol Acrylate with different esterification ratios by employing ethyl acetate-saturated NaCl aqueous solution as extraction system. Testing results showed that more than 99% of polyethylene glycol di-acrylate(PEGdA) can be removed with ethyl acetate after 3 repetitions at 15℃. PEGmA remained in water could be extracted out by ethyl acetate at 50℃ with a recovery of 71%~74% by 3 repetitions. PEGmA and PEGdA with purity higher than 99.0% and 98.1% were obtained by washing with mixed aqueous solution of saturated NaCl and Na2CO3 (v/v= 3/1).

Abstract:A new intermediate macromonomer for polycarboxylate type superplasticizers was prepared by esterification of itaconic acid and polyethylene glycol. The conditions of the esterification were investigated by orthogonal experiment. The optimum conditions were obtained as follows: the molar ratio of itaconic acid to polyethylene glycol is 1:1.1; the amount of catalyst is 4% according to the mass of polyethylene glycol; the reaction temperature is 100℃; the reaction time is 6h; the amount of water-carrying agent is 30% according to the mass of polyethylene glycol and the amount of polymerization inhibitor is 2% according to the mass of itaconic acid. Under the optimum conditions, the percentage of esterification is as high as 98.3%. The macromonomer was characterized by FTIR and 1H-NMR. The result indicated that the macromonomer, the itaconic acid polyethylene glycol ester, was obtained.

Abstract:The synthesis of ethyl glyoxylate was studied by ozonization and hydro-reduction using diethyl maleate as raw material and ethyl acetate as solvent. The obtained optimum conditions were n(ethyl acetate):n(diethyl maleate)=15:1, ozonization temperature 20℃, ozonization time 80min; using Pa/C as hydrogenation catalyst, m(Pd/C):m(diethyl maleate)=0.09:1, hydrogen pressure 4MPa, reduction time 5h, reduction temperature 25 ℃. Under above conditions, the conversion of diethyl maleate was almost 100%, the yield of ethyl glyoxylate was ≥89.0% with the purity over 96.6%. The structure of obtained product was characterized by IR and 1H NMR.

Abstract:6-(2-Aminopropyl)-2,3–dihydrobenzofuran was synthesized from 3-6-2-Aminopropyl-2,3–dihydrobenzofuran was synthesized from 3-methoxybenzaldeh -yde via a sequence of Henry Reaction, reduction of nitro group and double bond, amino -protection, Friedel-Crafts acetylation, demethylation, reduction of carbonyl group and cyclization. The reduction of nitro group and double bond, Friedel-Crafts acetylation and demethylation reactions were optimized to give the better reaction conditions. (1) Reduction: reaction temperature 40 ℃, reaction pressure 4.0 MPa, the amount of Raney-Ni to the compound 2 as 8 %, thus serving 78.6 % yield for the corresponding product, (2) Better process conditions for the synthesis of 6: Reaction temperature 40 ℃, n (chloroacetyl chloride)：n(product 4)=1.4:1, reaction time 6 h, thus serving 68.8 % yield for the product 6.

Abstract:Glycerol carbonate was synthesized by glycerol and dimethyl carbonate with CaO as catalyst. The effects of reaction temperature, reflux temperature, reactant molar ratio, catalyst dosage, and time on the reaction were studied by orthogonal experiment and single-factor test. The optimal reaction conditions were obtained as follows: reaction temperature 75 ℃, reflux temperature 60 ℃, n(dimethyl carbonate): n(glycerin) = 2.5:1, catalyst dosage = 0.8%, reaction time = 2 h；the conversion of glycerol and the yield of glycerol carbonate reached 97.89% and 96.78%, respectively. Finally, The storage stability and reusability of CaO were also evaluated, indicating that although CaO was of relatively good storage stability, its reusability was so poor that it lost its activity after the first cycle of use.