最新刊期
      卷 0 ， 期 0 ， 2020
      • Jian-hua DONG
        Vol. 18, Issue 3, Pages: 1-8(2005) DOI: 10.14028/j.cnki.1003-3726.2005.03.001
        摘要：Progresses in several areas of polymer science achieved by scientists in Mainland of China in2004 have been briefly introduced and overviewed,including synthetic chemistry,dendrimers and their assembly,optical and electronic active polymers,polymer viscles,polymer nanocomposites,hyperhydrophobic polymers,biomimic enzyme and the patterning of colloid crystal.  
        关键词：Polymer science;Overview of annual progress2004;Progress and trends   
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        发布时间：2022-09-18
      • Hui QUAN,Zhong-ming LI,Ming-bo YANG,Rui HUANG
        Vol. 18, Issue 3, Pages: 9-20(2005) DOI: 10.14028/j.cnki.1003-3726.2005.03.002
        摘要：In semi_crystalline polymer composites, when heterogeneous nucleation occurs with sufficiently high density along the interphase region, the resulting crystal growth is restricted to the lateral direction, so that a columnar layer develops around the fiber, known as transcrystallinity ( TC) or transcrystalline layers ( TCL) .The advance in the study of TCL in some fiber reinforced semi_crystalline polymer composites is reviewed in the present paper .It includes the formation and growth mechanisms of TCL, and the influences of TCL on the interfaces of fiber polymer and properties of composites .  
        关键词：Transcrystallinity;Semi_crystalline polymer composites;Fiber   
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        发布时间：2022-09-18
      • Chun-mei YAO,Lian-dong DENG,Ai-gui LI,An-jie DONG
        Vol. 18, Issue 3, Pages: 21-24,99(2005) DOI: 10.14028/j.cnki.1003-3726.2005.03.003
        摘要：Polyphosphazenes are a novel biodegradable polymer with an inorganic backbone composed of alternating single and double covalent bond and alternating phosphorous and nitrogen atoms .Polyphosphazenes have unique properties and notable diversity of synthesis , and degradation products are nontoxic compounds such as phosphorous acid , amine , amino acid and ethanol .Tuning degradation of polyphosphazenes and controlling drug release can be achieved via changing the structures and compositions of side chain of polyphosphazenes .This review mainly summarizes the synthesis , the mode of degradation and the applications in the controlled release systems of biodegradable polyphosphazenes .  
        关键词：Polyphosphazenes;Controlled release;Biodegradation;Biodegradable polymer   
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        发布时间：2022-09-18
      • Kai WANG,Sheng-qiang GAO,Mao-sheng ZHAN,Lin FAN,Shi-yong YANG
        Vol. 18, Issue 3, Pages: 25-32(2005) DOI: 10.14028/j.cnki.1003-3726.2005.03.004
        摘要：Development and the most recent researchel of melt-processable thermoplastic polyimides (TPIs)were presented .The typical synthesis methods of TPIs were introduced .The relationship between molecular structure and thermal properties of TPIs were also analyzed .Moreover the development direction of TPIs was pointed out .  
        关键词：Thermoplastic polyimide;Molecular structure and thermal properties;Melt-processable   
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        发布时间：2022-09-18
      • Bo HONG,Bao-guo WANG
        Vol. 18, Issue 3, Pages: 33-39(2005) DOI: 10.14028/j.cnki.1003-3726.2005.03.005
        摘要：Preparation of small-size monodisperse porous microcapsule is of very important significance both academic and application. This paper introduced the newly developed micropore emulsification techniques for making monodisperse microcapsule,reviewed the study status of SPG (Shirasu Porous Glass) membrane emulsification and microchannel (MC) method,including their principles,apparatus and controlling parameters,and exemplified some research cases of preparing monodisperse emulsion. Finally,the domain factors in synthesizing monodisperse emulsion and microcapsule was summarized and some possible application was pointed out.  
        关键词：Monodisperse;Membrane emulsification;Microchannel;Microcapsule   
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        发布时间：2022-09-18
      • Ben-zhe LUO,Jun ZHANG,Xiao-lin WANG
        Vol. 18, Issue 3, Pages: 40-46(2005) DOI: 10.14028/j.cnki.1003-3726.2005.03.006
        摘要：Because it is difficult to find good solvents for non-polar crystallizable polymer at room temperature, the microporous membranes cannot be made by non-solvent induced phase separation .But a recently developed method of thermally induced phase separation has resolved the question .Researches showed that some polyolefins such as polypropylene ( PP) , polyethylene ( PE) , poly ( ethylene-co-vinyl alcohol) EVAL, ethylene-acrylic acid coplymer( EAA) and poly( 4-methyl-1-pentene) ( TPX) are materials of making microporous through thermally induced phase separation .This article reviews the research development and focuses on the effects of different kinds of materials ( polymer, diluents, extroctants and additive agents) on microporous membrane' s pore diameter, transfer rate and asymmetric structure .  
        关键词：Polyolefin;Microporous membrane;Thermally induced phase separation   
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        发布时间：2022-09-18
      • Zhao-sheng HOU,Ye-bang TAN,Yu-ling HUANG,Qi-feng ZHOU
        Vol. 18, Issue 3, Pages: 47-54(2005) DOI: 10.14028/j.cnki.1003-3726.2005.03.007
        摘要：This article reviews the research progress of a new kind of supramolecular (pseudo) polyrotaxanes with cucurbituril in recent years,including one,two and three-dimensional meta-l (pseudo) polyrataxanes,main chain, side chain organic (pseudo) polyrotaxanes and dendritic (pseudo) polyrotaxanes. The perspectives of supramolecular (pseudo) polyrotaxanes with cucurbituril are previewed.  
        关键词：Polyrotaxanes;Supramolecule;Cucurbituril;Progress   
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        发布时间：2022-09-18
      • Li-mei WANG,Li-yan DOU,Da-juna CHEN
        Vol. 18, Issue 3, Pages: 55-61(2005) DOI: 10.14028/j.cnki.1003-3726.2005.03.008
        摘要：In this paper,the present status and recent advances of study on the materials with hollow sphere structure,including shell materials,preparation technology and characterization,were introduced.  
        关键词：Hollow sphere;Spray drying;Template synthesis;Sonochemistry;Ionic liquid   
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        发布时间：2022-09-18
      • Jing-jun LIU,Xiao-yu LI
        Vol. 18, Issue 3, Pages: 62-69(2005) DOI: 10.14028/j.cnki.1003-3726.2005.03.009
        摘要：This paper has reviewed the study of polymer degradation in various environment conditions today . Discussed the effect of several environment factors , such as photo , thermal and chemical media , on the polymer ageing ;and listed some mainly degradation mechanisms introduced in recent years .At the same time , reported the newly research results by means of some updated techniques and overviewed the trend of research about polymer degradation .  
        关键词：Polymer;Degradation;Environment condition;Mechanism;Progress   
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        发布时间：2022-09-18
      • Jie ZHAO,Da-ping QUAN,Kai-rong LIAO,Qing WU
        Vol. 18, Issue 3, Pages: 70-75,115(2005) DOI: 10.14028/j.cnki.1003-3726.2005.03.010
        摘要：Biodegradable polymers with functional groups play an important role in tissue engineering .The main approaches of functioning and biological modifying of biodegradable polymers are reviewed and the immobilization of RGD( Arg-Gly-Asp) sequence via bulk modification, gelation and surface modification are discussed in detail .  
        关键词：Tissue engineering;Biodegradable polymer;Bulk modification;Gelation;Surface modification   
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        发布时间：2022-09-18
      • Chun WEI
        Vol. 18, Issue 3, Pages: 76-81(2005) DOI: 10.14028/j.cnki.1003-3726.2005.03.011
        摘要：The curing kinetics of EP /DDS /LCP blends were studied through curing kinetic methods( autocatalytic kinetics and nth-order model) by isothermal DSC methods .The results showed that LCPU can accelerate the curing reaction, reduce the reaction activation energy .For the unmodified epoxy system and EP/DDS/LCPU modified system, the curing kinetics follows the autocatalytic kinetic mechanism in the range of α<40 % and α<60 % respectively , and the autocatalytic rate and non-catalytic rate all exceed the rate of unmodified epoxy .For the PHBHT /DDS /EP blends, it follows nth-order kinetic mechanism, and the reaction activation energy is greater than the EP/DDS/LCPU blends, which means that the PHBHT would not play part in speeding reaction rate .  
        关键词：Thermotropic liquid crystalline polymer(LCP);Epoxy resin;Curing kinetics   
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        发布时间：2022-09-18
      • Jin-yun ZHENG,Zhan-hui XU,Xiang-ming FENG,Cai-mao ZHAN
        Vol. 18, Issue 3, Pages: 82-88(2005) DOI: 10.14028/j.cnki.1003-3726.2005.03.012
        摘要：The copolymers incorporated coumarin with triphenylamine, butyloxybenzene, stilbene, 9, 9-di ( 2- ethylhexyl) fluorene, 1, 2, 4, 5-tetramethylbenzene and β-methoxynaphthalene prepared by oxidative coupling copolymerization.The structure of polymers was characterized by 1H NMR and FT-IR .The copolymers are all amorphous and have good thermal stability .The electrochemical behaviors of the polymers were investigated by cyclic voltammetry .From the electrochemistry and UV-Vis spectroscopy, the HOMO and LUMO energy level of the polymers were calculated .The absorbance of the polymers were characterized by UV-Vis spectroscopy .The fluorescence spectra of polymers in chloroform solution display that the copolymer of coumarin and triphenylamine is blue-light emitting ;the copolymer of coumarin and dialkyloxyl benzene, and the copolymer of coumarin and tetramethylbenzene are green-light emitting ;the copolymer of coumarin and stilbene is yellow-green or orange light emitting ;and the copolymer of coumarin and β-methoxynaphthalene is red light emitting materials respectively .On the other hand, the copolymers contained coumarin 1 display blue and orange light emitting .In a word, the copolymers contained coumarin display blue, green and red light emitting .Hence it is possible to tune the emission of the copolymers from blue to red by changing the moieties .  
        关键词：Oxidative coupling copolymerization;Coumarin;Light emitting;Color-tunable   
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        发布时间：2022-09-18
      • Yue-wen HUANG,Wei-qu LIU,Guang-jian LUO
        Vol. 18, Issue 3, Pages: 89-95(2005) DOI: 10.14028/j.cnki.1003-3726.2005.03.013
        摘要：This paper reviewed the varieties and recent study progress of polymer surfactants of organic silicon, fluorinated polymers and silicon-fluorine polymers .Applications of these special polymer surfactants in coating industry and plastic industry in building materials field were introduced briefly .  
        关键词：Organic silicon;Fluorinated polymer;Polymer surfactant   
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        发布时间：2022-09-18
      • Wei-li WU,Qi ZHANG,Guo-zhi XU
        Vol. 18, Issue 3, Pages: 96-99(2005) DOI: 10.14028/j.cnki.1003-3726.2005.03.014
        摘要：Polyurethane (PU) and silicone rubber have been found a wide range of application in medical aspect because of polyurethane has good biological compatibility, excellent mechanical properties, easy processing and controlled properties, and silicone rubber has physiological inertia and biological compatibility etc advantages .This paper has not only introduced their structures and properties, but also their developing condition in medical aspect respectively and their products made according to different uses .At last their developments was looked ahead in future medical treatment .  
        关键词：Silicone Rubber;Polyurethane;Medical material;Application;Perspective   
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        发布时间：2022-09-18
      • Ya-fei LV
        Vol. 18, Issue 3, Pages: 100-108(2005) DOI: 10.14028/j.cnki.1003-3726.2005.03.015
        摘要：Hydrogen bonded supramolecular polymers are composed of monomeric units brought together through hydrogen bonding interactions,which show versatile morphologies,architectures and topological structures. Hydrogen bonds in supramolecular polymers are dynamically reversible and therefore,hydrogen bonded supramolecular polymers are smart and functional polymer materials. Supramolecular polymers based on hydrogen bonding have been utilized as electro-optic devices,nonlinear optical materials and biomaterials to engineering applications. In this paper,the synthesis,structures,and applications of hydrogen bonded supramolecular polymers are introduced.  
        关键词：Supramolecular polymers;Hydrogen bond;Liquid crystals;Self-assembly;Molecular recognition   
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        发布时间：2022-09-18
      • Xiao-wei LI,Wen-guang LIU,Dun-wan ZHU,Kang-de YAO,Zuo-qin LIU,Xi-zhong Sheng
        Vol. 18, Issue 3, Pages: 109-115(2005) DOI: 10.14028/j.cnki.1003-3726.2005.03.016
        摘要：Injectable temperature-sensitive polymers have been widely used as drug delivery carriers and tissue engineering scaffolds .This review summarizes the latest progress in sol-gel thermoreversible polymeric systems covering natural and modified natural polymers, N-isopropylacrylamide copolymers and poly ( ethylene glycol) poly ( D, L-lactide-co-glycolide) block copolymers .Their applications in biomedical field are also introduced briefly .  
        关键词：Thermosensitivity;Sol-gel transition;Injectable   
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        发布时间：2022-09-18
      • Hai-feng LIU,Yu-rong WANG,Yan REN
        Vol. 18, Issue 3, Pages: 116-122(2005) DOI: 10.14028/j.cnki.1003-3726.2005.03.017
        摘要：Dendrimers are mono-distributed and nano-scale macromolecules .Owing to the unique features, dendrimers have potential applications in many areas .In this paper, the research and application of dendrimers in the fields of supramolecular chemistry, biomedicinal chemistry, photochemistry , electrochemistry, catalyst and so on, were reviewed .  
        关键词：Dendrimers;Supramolecular;Photoswitchabledendrimers;Nano-catalyst   
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        发布时间：2022-09-18
      • Zhen-sheng YANG,Ping-li LI,He-ying CHANG,Shi-chang WANG
        Vol. 18, Issue 3, Pages: 123-127(2005) DOI: 10.14028/j.cnki.1003-3726.2005.03.018
        摘要：The paper describes recent research advances related to the porous membranes from crystalline polymers via diffusion-induced phase inversion. The isothermal phase diagram for ternary polymer systems,exhibiting both a solid-liquid and a liquid-liquid demixng gap,is an important tool to understand membrane formation. The solid-liquid demixing process gives rise to the uniform particulate morphology. the liquid-liquid demixing process contributes to the asymmetric spongy structures. As the result of competition between solid-liquid demixing and liquidliquid demixing,the membrane exhibits a structure containing features from both types of phase separations. Therefore,a wide variety of membrane morphologies can be synthesized. In the end,factors controlling membrane morphologies,such as polymer concentration of the casting solution,nonsolvent type,composition of the casting solution,composition of the coagulation bath,and operation temperature,are discussed in detail.  
        关键词：Diffusion-induced phase inversion;Immersion precipitation;Crystalline polymer;Porous membrane;Membrane formation   
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        发布时间：2022-09-18
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