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Chinese Journal of Reactive polymers 2008年第Z1期 1-11页

作者： zhang Ying zhang huiqi key laboratory of functional polymer materials (Nankai University), Ministry of Education, Department of Chemistry, Nankai University, Tianjin 300071, China

Molecular imprinting technique is a simple and efficient method for the preparation of polymer materials (i.e., molecularly imprinted polymers, MIPs) with tailor-made recognition sites for certain target molecules. The resulting MIPs have proven to be versatile synthetic receptors due to their high specific recognition ability, favorable mechanical, thermal and chemical stability, and ease of preparation. Recent years have witnessed significant progress in the synthesis and applications of MIPs. This review focus on the recent developments and advances in the preparation of MIPs via various controlled radical polymerization techniques.

关键词： Molecular imprinting Molecularly imprinted polymers Preparation Controlled radical polymerization.

Preparation of Molecularly Imprinted polymer Miscrospheres via Atom Transfer Radical Precipitation polymerization

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Preparation of Molecularly Imprinted Polymer Miscrospheres v...

SYNTHESIS OF polymerIC β-CYCLODEXTRIN SUPPORTED BY CROSSLINKED POLY(ACRYLAMIDE-co-VINYLAMINE)AND ITS CATALYSIS OF THE HYDROLYSIS OF p-NITROPHENYL ACETATE

5th East-Asian polymer Conference

作者： Baiyi Zu Guoqing Pan Xianzhi Guo huiqi zhang key laboratory of functional polymer materials Ministry of Education Department of Chemistry Nankai University Tianjin 300071 P. R. China

＜正＞Molecular imprinting technique can be defined as the formation of specific nano-sized cavities by means of template-directed synthesis [1-3]. The resulting molecularly imprinted polymers （MIPs） have proven to be

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Chinese Journal of polymer Science 2000年第2期18卷 155-160页

作者： Hong-jun Wang Jian-biao Ma Bing-lin He The State key laboratory of functional polymer materials for Adsorption and Separation, Institute of polymer Chemistry, Nankai University, Tianjin 300071, China Nankai Univ Inst Polymer Chem State Key Lab Funct Polymer Mat Adsorpt & Separat Tianjin 300071 Peoples R China

polymeric β-cyclodextrin (β-CD) supported by crosslinked poly(acrylamide-co-vinylamine) was synthesized as anartificial analog of hydrolytic enzyme and its catalysis of the hydrolysis of p-nitrophenyl acetate (p-NPA) was theninvestigated. The result showed that the polymer-supported β-CD could accelerate the hydrolytic reaction of p-NPA morequickly than β-CD itself and crosslinked poly(acrylamide-co-vinylamine) alone. The acceleration rate of the polymer-supported β-CD was about 10 times as fast as that of free β-CD in 0.01 mol/L phosphate buffer (pH 7.4) containing 32%DMSO at 37±0.1℃ when the molar amount of β-CD units in the polymer was equal to that of free β-CD in the *** enhanced acceleration of thc polymer-supported β-CD should be ascribed to the cooperative contribution of theinclusion effect of β-CD ring and the nucleophilic effect of amino groups on the polymeric support.

关键词： polymer-supported catalysis β-Cyclodextrin Crosslinked poly(acrylamide-co-vinylamine) Hydrolysis of p-nitrophenyl acetate

REINFORCEMENT OF CALCIUM PHOSPHATE CEMENTS WITH PHOSPHORYLATED CHITIN

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Chinese Journal of polymer Science 2002年第4期20卷 325-332页

作者： Xiao-hong Wang Jian-biao Ma Yi-nong Wang Bin-ling He The State key laboratory of functional polymer materials for Adsorption and Separation Institute of polymer Chemistry Nankai University Tianjin 300071, China Nankai Univ Inst Polymer Chem State Key Lab Funct Polymer Mat Adsorpt & Separat Tianjin 300071 Peoples R China

Phosphorylated chitins (P-chitins) as the additives of calcium phosphate cements (CPCs) were prepared by the phosphorylation of chitin with phosphorus pentoxide in methanesulfonic acid. Their physical properties and effects on CPCs from monocalcium phosphate monohydrate (MCPM) and calcium oxide (CaO) or dicalcium phosphate dihydrate (DCPD) and calcium hydroxide [Ca(OH)(2)] were investigated. Addition of P-chitin (M-w = 2.60 x 10(4); degree of substitution, DS = 0.68) to the liquid phase in amounts up to 3 wt.% for MCPM and CaO cements or 1.5 wt.% for DCPD and Ca(OH)(2) cements could enhance the mechanical strength considerably, while little influence on the setting time was observed. However, further addition of P-chitin will cause no setting.

关键词： phosphorylated chitins calcium phosphate cements mechanical strength setting time

Characterization of the Microstructure Changes of Polypropylene Induced by Pan-milling

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Chinese Journal of Structural Chemistry 2002年第1期21卷 7-12页

作者： LU Can-Hui WANG Qi ( The state key laboratory of polymer materials Engineering, polymer Research Institute, Sichuan University, Chengdu 610065 ) polymer Research Institute Sichuan University The State Key Laboratory of Polymer Materials Engineering Chengdu 610065

The microstructure changes of polypropylene induced by a complex combination of shearing, friction, compression and stretching actions during pan-milling were revealed by spectroscopic techniques. X-ray diffraction analysis showed that the structure of polypropylene transferred from crystal into amorphous after undergoing enough milling operation. No transformation between crystal forms was observed. The study of the high-frequency region of the Raman spectrum between 2800 and 3100cm-1 of polypropylene indicated that molecular motion and chain deformation of PP led to amorphization and deterioration of packing regularity during pan-milling. By co-panmilling PP with bis-(2,2,6,6-tetramethyl-4-piperidinyl) sebacate under ambient condition, ESR signals of free radicals formed by mechanochemical scission of main chain were observed, and an increase of ESR intensity with milling was detected.

关键词： polypropylene microstructure change mechanochemistry pan-milling

EFFECT OF PROCESSING METHOD ON THE IMPACT STRENGTH OF POM/TPU/CaCO_3 TERNARY COMPOSITES

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Chinese Journal of polymer Science 2005年第5期23卷 531-537页

作者： Xiao-ling Gao Cheng Qu Qin zhang Rong-ni Du and Qiang Fu Department of polymer Science & materials,Sichuan University,State key laboratory of polymer materials Engineering,Chengdu 610065,China Sichuan Univ Dept Polymer Sci & Mat State Key Lab Polymer Mat Engn Chengdu 610065 Peoples R China

Polyoxymethylene （POM）/elastomer/filler ternary composites were prepared, in which thermoplastic polyurethane （TPU） and inorganic filler, namely, CaCO3, were used to achieve balanced mechanical properties of POM. The dispersion and phase morphology of POM/elastomer/filler composites were found to depend largely on processing method, CaCO3 content in masterbatch and the filler size. Two processing methods were employed to prepare POM/elastomer/filler ternary composites. One is called the one-step method, in which elastomer and the filler directly melt blended with POM matrix. The other is called the two-step method, in which the elastomer and the filler were mixed to get masterbatch first, which was then melt blended with pure POM of different content. The effect of phase morphology and processing method on impact strength was investigated. It was found that the two-step method results in an increase in impact strength but not for the one-step method. Additionally, the impact strength of POM ternary composites decreases with the increase in the size of CaCO3 particles.

关键词： POM/TPU/CaCO3 composites Core-shell structure Impact strength.

PREPARATION AND PROPERTIES OF HIGH STRENGTH RODS FROM L-AND D,L-LACTIDE COpolymer

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Chinese Journal of polymer Science 2001年第4期19卷 351-357页

作者： Yu-shan Hu Zheng-pu zhang Dong Song Dong-ren Bai Yong-mei Wang Institute of polymer Chemistry State key laboratory of functional polymeric materials for Adsorption and Separation, Nankai University Tianjin 300071, China Nankai Univ Inst Polymer Chem State Key Lab Funct Polymer Mat & Adsorpt & Separ Tianjin 300071 Peoples R China

Starling with the L- and D,L-lactide copolymer (L:DL = 9:1) [P(L-DL)LA] of M-W = 32.1 x 10(4), rods were obtained through a two stage process: (1) melt-extrusion at 155 degreesC, and (2) hot-drawing at 90 degreesC to various drawing ratios. The molecular weight of P(L-DL)LA fell to 9.3 x 10(4) as a consequence of the production process. The crystallization and molecular orientation of P(L-DL)LA developed as a result of the hot-drawing. The mechanical strengths of the rods increase with the drawing ratio; The maximum for tensile strength, bending strength, bending modulus, and shear strength are 329 MPa, 237 MPa, 8.8 GPa, and 157 MPa, respectively.

关键词： P(L-DL)LA self-reinforcement rod process bone fracture fixation

<100> Textured Diamond Film on Silicon Grown by Hot Filament Chemical Vapor Deposition

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Journal of materials Science & Technology 1995年第6期11卷 426-428页

作者： Xuanxiong zhang Tiansheng SHI and Xikang zhang (State key laboratory of functional materials for Informatics, Shanghai Institute of Metallurgy,Chinese Academy of Sciences, Shanghai, 200050, China) Shanghai Inst of Metallurgy Chinese Acad of Sciences Shanghai China

The textured growth of diamond film on HF eroded silicon wafer has been studied by HFCVD. The evolution of grain size and sudece morphology vs deposition time is presented and the textured thick diamond film (80μm)... 详细信息

关键词： Textured Diamond Film on Silicon Grown by Hot Filament Chemical Vapor Deposition OO

Synthesis of Fe_3O_4@SiO_2@polymer nanoparticles for controlled drug release

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Science China Chemistry 2010年第3期53卷 514-518页

作者： WU ChengLin,HE Huan,GAO HongJun,LIU Gan,MA RuJiang,AN YingLi & SHI LinQi key laboratory of functional polymer materials,Ministry of Education Institute of polymer Chemistry,Nankai University,Tianjin 300071,China 1. key laboratory of functional polymer materials Ministry of Education Institute of polymer Chemistry Nankai University Tianjin 300071 China

Novel multifunctional nanoparticles containing a magnetic Fe3O4@SiO2 sphere and a biocompatible block copolymer poly(ethylene glycol)-b-poly(aspartate)(PEG-b-PAsp) were *** silica coated on the superparamagnetic core was able to achieve a magnetic dispersivity,as well as to protect Fe3O4 against oxidation and acid *** PAsp block was grafted to the surface of Fe3O4@SiO2 nanoparticles by amido bonds,and the PEG block formed the outermost *** anticancer agent doxorubicin(DOX) was loaded into the hybrid nanoparticles via an electrostatic interaction between DOX and *** release rate of DOX could be adjusted by the pH value.

关键词： magnetic nanoparticle Fe3O4@SiO2 multifunctional controlled drug release

Semibatch Emulsifier-free Emulsion Copolymerization of Methyl Methacrylate and n-Butyl Acrylate in the Presence of 2-Hydroxyethyl Methacrylate

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Chinese Chemical Letters 1998年第7期9卷 683-686页

作者： Tian Ying GUO Mou Dao SONG Qing Ye ZHOU Bang Hua zhang Jian Biao MA Bing Lin HE (The State key laboratory of functional polymer materials for Adsorption and Separation,Institute of polymer Chendstry, Nankai University, Tianin, 300071) Nankai Univ Inst Polymer Chem State key Lab Funct Polymer Mat Adsorpt & Separat Tianjin 300071 Peoples R China

The semibatch emulsifier-free emulsion copolymerization of methyl methacrylate (MMA) and n-butyl acrylate (BA) in the presence of 2-hydroxyethyl methacrylate (HEMA) initiated by K2S2O8 (PSP) was studied. The average particle diameter increases with an increase of total solids content, HEMA content, PSP content, ionic strength of the system and monomer feed rate, and decreases with the monomer feed ratio from 3/1 (MMA/BA mole.) to 1/3. The stability of this reaction system is improved by adding HEMA as nonionic comonomer. The high solids content (50%) latex with monodisperse particle can be obtained using this process.

关键词： emulsion copolymerization semibatch emulsifier-free MMA and BA latex stability