最新刊期
      卷 14 ， 期 1 ， 2001
      • Ai-ming HUANG,Yin-feng LIU,Jia-dong HUA
        Vol. 14, Issue 1, Pages: 1-8(2001) DOI: 10.14028/j.cnki.1003—3726.2001.01.001
        摘要：Optically active polymers,for its special chiral structure,can be used in asymmetric synthesis.It can show ferroelectric properties through certain molecular structure design.Recently, many ferroelectric polymers have been synthesized containing crystalline and liquid crystalline polymers.This paper reviews the different types of ferroelectric crystalline polymers and liquid crystalline polymers with optical activity.The special structural characteristics and ferroelectric properties of such polymers are discussed.The main effects on spontaneous polarizability and response time of optically active liquid crystalline polymers are also presented.  
        关键词：Optically active polymers;Ferroelectricity;Asymmetric conformation;Liquid crystalline polymer;Photoelectric materials and devices   
        2
        |
        7
        |
        1
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 30004696 false
        发布时间：2022-09-18
      • Shu-wen HU,Zheng-cheng ZHANG,Shi-bi FANG
        Vol. 14, Issue 1, Pages: 9-15,24(2001) DOI: 10.14028/j.cnki.1003—3726.2001.01.002
        摘要：Advanced development of solid polymer electrolytes used in lithium batteries was reviewed since early 1980′s in this paper.The structure and property of polymer electrolytes are reviewed with75references.  
        关键词：Polymer solid electrolytes;Ionic conductivity;Lithium battery   
        5
        |
        11
        |
        9
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 30004695 false
        发布时间：2022-09-18
      • Zai-cheng SUN,Ji LI,Xian-hong WANG,Xia-bin JING,Fo-song WANG
        Vol. 14, Issue 1, Pages: 16-24(2001) DOI: 10.14028/j.cnki.1003—3726.2001.01.003
        摘要：According to their structure,the oligomers of aniline are classified into three types: phenyl/amino-capped oligoanilines,amino-capped oligoanilines and phenyl-capped oligoanilines.In this article,the progress in synthesis and characterization of oligoanilines in last decade is reviewed.  
        关键词：Oligoanilines;Phenyl/amino-capped oligoanilines;Amino-capped oligoanilines;Phenyl-capped oligoanilines   
        2
        |
        7
        |
        3
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 30004697 false
        发布时间：2022-09-18
      • Jian YU,Jia-song HE
        Vol. 14, Issue 1, Pages: 25-33(2001) DOI: 10.14028/j.cnki.1003—3726.2001.01.004
        摘要：The Regime theory is reviewed for melt crystallization of polymer with chain folding. In the theory,three regimes,referred to as Ⅰ,Ⅱ and Ⅲ,are defined according to the relationship of surface nucleation rate and surface spreading rate.Two kinetics methods used for detecting regime transition temperatures are mentioned:one is linear growth rate of lamella,the other is bulk overall crystallization rate.Polymer systems showing Ⅰ/Ⅱ or Ⅱ/Ⅲ transitions are listed and discussed.Some polymers exhibit both the two transitions in the same sample.This review also discusses the obtaining of theoretical parameters and the relationship between regime transition and morphology change.  
        关键词：Crystallization;Regime theory;Chain folding   
        2
        |
        7
        |
        3
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 30004694 false
        发布时间：2022-09-18
      • Cai-gen YUAN,Ya CHEN,Chun-pu HU
        Vol. 14, Issue 1, Pages: 34-39(2001) DOI: 10.14028/j.cnki.1003—3726.2001.01.005
        摘要：The key parameters which control the wetting and dewetting properties of polymer thin films on substrates are Hamarker constant(A) and spreading coefficient(S). If the polymer films are formed on non-wettable substrates,they should exist in a metastable state.In this case,when the films are annealed at temperature above their glass transition temperature,dewetting will take place.The dewetting velocity is mainly determined by the surface tension,vicosity of polymer melt and the equilibrium contact angle of polymer droplet on the substrate.For the systems of polymer films on non-wettable substrates,the dewetting dynamics of polymer films will be obviously changed and the films can become stable under special conditions like adding end functional polymer to the system.In this paper,the wetting and dewetting properties of polymer thin films on substrates are reviewed.  
        关键词：Polymer thin film;Wetting and dewetting;Physical chemistry of polymer surface   
        0
        |
        7
        |
        0
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 30004692 false
        发布时间：2022-09-18
      • Shan-ju FU,Zhe-wen HAN,Ping-ping WU
        Vol. 14, Issue 1, Pages: 40-47(2001) DOI: 10.14028/j.cnki.1003-3726.2001.01.006
        摘要：The mechanisms of thermal aging, the facts that decrease the thermal stability and how to enhance the thermal stability of polysiloxanes are reviewed. Thermal depolymerization and thermo-oxidative degradation are the main reactions during the thermal aging of polysiloxanes. Accordingly, the thermal stability of polysiloxanes may beinfluenced by oxide, water, alcohol, acid, base, residual catalyst, silicone oil, mechanical stress, filler or the end groups of itself. Changing the structure of polysiloxane and adding antioxidants or stabilizers can improve the thermal stability of poly siloxances.  
        关键词：Polysiloxanes;Thermal aging;Thermal stability   
        4
        |
        9
        |
        23
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 30004750 false
        发布时间：2022-09-18
      • Ying-xian ZHU,Da-jun CHEN,Yao-jun LI
        Vol. 14, Issue 1, Pages: 48-52,73(2001) DOI: 10.14028/j.cnki.1003-3726.2001.01.007
        摘要：In this paper, the synthetic technologies of biodegradable materials and the application of these technologies to make biodegradable fibers were discussed. Several biodegradable fibers, such as modified natural fibers, polyester fibers and polyamide fiber, were introduced. Among these fibers, it was pointed out that starch fibers had a promising future due to the low cost and easy accessibility of starch.  
        关键词：Biodegradable;Natural occurring polymer;Fiber materials   
        2
        |
        9
        |
        3
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 30004752 false
        发布时间：2022-09-18
      • Zhong-wen DIAO,Qing WU
        Vol. 14, Issue 1, Pages: 53-59(2001) DOI: 10.14028/j.cnki.1003-3726.2001.01.008
        摘要：The research and development of addition polymerization of cycloolefins and the properties of polycycloolefins are reviewed. This paper mainly describes the typies of the catalysts, including typical Ziegler-Natta catalysts, metallocene catalysts and posttransition metals such as Pd and Ni complexes, and their catalyzing specificity for the cycloolefins homopolymerization and copolymerization with T-olefins. Mechanism of the polymerization with different catalysts and properties and applications of the cycloolefin polymers and the cycloolefin-T-olefin copolymers are also introduced.  
        关键词：Cycloolefine;Catalyst;Polymerization   
        3
        |
        8
        |
        8
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 30004756 false
        发布时间：2022-09-18
      • Jia-fang WANG,Wen-gong ZHANG
        Vol. 14, Issue 1, Pages: 60-67,82(2001) DOI: 10.14028/j.cnki.1003-3726.2001.01.009
        摘要：In this paper, based on the synthesis methods, the organic/inorganic hybrid materials with chemical bonds between two phases by Sol-gel process are reviewed, and the future development trends are forecasted.  
        关键词：Sol-gel process;Organic/inorganic hybrid materials;Chemical bond   
        3
        |
        9
        |
        6
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 30004757 false
        发布时间：2022-09-18
      • Wei ZENG,Shu-Cai LI
        Vol. 14, Issue 1, Pages: 68-73(2001) DOI: 10.14028/j.cnki.1003-3726.2001.01.010
        摘要：LIPN 's have potential practical value for noise and vibration damping. This paper described the damping principle of LIPN. The effects of miscibility and interaction among components, synthesis method and other important variables on damping properties were reviewed and discussed, which should be valuable to design polymeric damping materials.  
        关键词：IPN;Latex;Damping   
        2
        |
        8
        |
        9
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 30004758 false
        发布时间：2022-09-18
      • Peng HE,An-chi ZHAO
        Vol. 14, Issue 1, Pages: 74-82(2001) DOI: 10.14028/j.cnki.1003-3726.2001.01.011
        摘要：The research in polymer modification is very active. The birth of the Nanometer composite technology initiates the new method of the polymer modification and is important to improve the functional and high-powered development of polymer. This paper introduces the progress of Nanometer technology and reviews the characteristics and preparation methods of Nanocomposite. In the end, The paper discusses the application of Nanometer materials in the Polymer Modification.  
        关键词：Nanocomposite;Ultra-particle;Dispersed;Modification   
        6
        |
        8
        |
        25
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 30004773 false
        发布时间：2022-09-18
      0