最新刊期
      卷 0 ， 期 0 ， 2020
      • Qifeng ZHOU
        Vol. 1, Issue 2, Pages: 1-9(1988) DOI: 10.14028/j.cnki.1003-3726.1988.02.001
        摘要：Polymeric liquid crystals are discussed in parlicular among mesophase phenomena. Structure and structural unit of polymer influencing the formation of liquid crystals and their intertransfor mation are discussed in detail. Some principles and pathways to control the properties are given.  
        关键词：Liquid crystal;Smectic;Nematic;Cholesteric;Mesogen   
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        发布时间：2022-09-18
      • Yanhui SUN
        Vol. 1, Issue 2, Pages: 10-20(1988) DOI: 10.14028/j.cnki.1003-3726.1988.02.002
        摘要：There is a wide variety of polymers which are used in bioengineering field. In general, they are known as polymeric biomaterials. One important application of biomaterials is in medicine. Another usage of biomaterials is in biotechnology .Polymeric biomaterials may be generally categorized according to the polymer properties,They may also be classified based on the different applications, such as in vivo polymers, ex vivo polymers and in vitro polymers. This paper mainly reviews recent developments of antithrombogenic materials, polymers in drug system and polymers in biotechnology. The new research trends in the above fields have been summarized.  
        关键词：Polymeric biomaterial;antithrombogenic materials;controlled release drug;biotechnology   
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        发布时间：2022-09-18
      • Ping XIE,Jiasong HE
        Vol. 1, Issue 2, Pages: 21-25(1988) DOI: 10.14028/j.cnki.1003-3726.1988.02.003
        摘要：Characteristics of thermotropic liquid crystal polymers used as high-periormance moulded products are commented. In-situ composites, consisting of reinforcing thermotropic liquid crystal polymers and thermoplastic matrix, are reviewed together with their preparation, structure and properties. Induced-orientation and compatibility which attentions should be paid to in turther research on this new approach to plastics reinforcement are mentioned, too.  
        关键词：In-situ composites;thermotropic liquid crystal polymers   
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        发布时间：2022-09-18
      • Dexi WANG,Sailu CHEN,Jun LIANG,Boliang LUO,Guozheng HOU
        Vol. 1, Issue 2, Pages: 26-32(1988) DOI: 10.14028/j.cnki.1003-3726.1988.02.004
        摘要：Conducting comosite is one kind of functional composites, which is very important to develop electronics industry and new techniques. In this paper it has been simply reviewed on the type, performance, application and recent development of conducting composites.  
        关键词：Conductive agent;Polymer matrix;Antistatic material;Facing heater;Positive teinperature coefficient characteriatic;Super-conductive carbon;Electromagnetic shielding material   
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        发布时间：2022-09-18
      • Binglin HE,Zuoqmg SHI
        Vol. 1, Issue 2, Pages: 33-41(1988) DOI: 10.14028/j.cnki.1003-3726.1988.02.005
        摘要：In this paper, the recent progress in the Institute of Polymer Chemistry of Nankai University on the synthesis, properties and applycation of polymer adsorbents, ion exchange resins and complexing resins are described.  
        关键词：Polymer adsorbent;Ion exchange resin;Complexing resin;Polymerization kinetic;Structure of porous resin   
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        发布时间：2022-09-18
      • Tong LI
        Vol. 1, Issue 2, Pages: 41-46(1988) DOI: 10.14028/j.cnki.1003-3726.1988.02.006
        摘要：Most of the "abnormal" kinetic behaviour in photopolymerization can be explained by absorbance effect in the system. Absorbance depends on the concentration and extinction coefficient of initiator, the thickness of the system and the wavelength of the incident light. So all the four factors will influence the kinetics of photopolymerization. In low absorbance, the kinetics of photopolymerization is similar to that of thermal polymerization,while in high absorbance, they will be quite different.  
        关键词：Photopolymerization;Kinetics of polymerization initiator;Absorbance   
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        发布时间：2022-09-18
      • Xisheng YU,Yishi SUN
        Vol. 1, Issue 2, Pages: 46-52(1988) DOI: 10.14028/j.cnki.1003-3726.1988.02.007
        摘要：The forgoing history, the current research state add the applications of various kinds of sensitive hydrogels were reviewed in this paper.In addition, the structure factors affecting the sensitivity of the hydrogels and the the- oretical explanation of the sensitive phase transformation of the hydrogels were also described.  
        关键词：Sensitive hydrogels;N-Alkylacrylam ides;N, N'-Methylenebisacrylamide and Acrylic acid   
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        发布时间：2022-09-18
      • Qihao LU
        Vol. 1, Issue 2, Pages: 53-57(1988) DOI: 10.14028/j.cnki.1003-3726.1988.02.008
        摘要：Combustion and flame retardance of plastics, the most widely used flame-retardant systems and their principal mechanisms, the recent developments of flame-retardanets and flame-retarding technique are reviewed. A prediction of the further developments is made by the author.  
        关键词：Flame-retardation of plastics;Flame-retardant;Flameretarding mechanism   
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        发布时间：2022-09-18
      • Qingrong FAN,Delu ZHAO
        Vol. 1, Issue 2, Pages: 58-61(1988) DOI: 10.14028/j.cnki.1003-3726.1988.02.009
        摘要：The regulation of molecular weight and molecular weight distribution resulting in some control of crystallization on the spin line by controll - ed degradation of polypropylene resin can be used for lowering the spinning temperature and improving the quality of the fiber in polypropylene fiber production.  
        关键词：Polypropylene;Controlled degradation;Spinning;Molecular weight distribution;Crystallization on the spin line   
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        发布时间：2022-09-18
      • Jiasong HE
        Vol. 1, Issue 2, Pages: 62-65(1988) DOI: 10.14028/j.cnki.1003-3726.1988.02.010
        摘要：DSM is an internationally operating chemical group of companies which has its head office in the Netherlands. The numerous group companies are organized into six divisions with their production of yarn and fiber feedstocks, bydrocarbons, plastics, rubbers. resins and etc. In line with DSM's strategy for the years ahead, DSM Research BV, DSM's central research institute, is stee ring a corporate development programme which is mainly concentrated on sophisticated new materials, fine-chemical intermediates, and biotechnological techniques. To he mentioned in development of advanced special products are the high- performance polyethylene fiber, the sophisticated polyamide 46 , and a production process for RIM Nylon.  
        关键词：DSM;DSM Research BV   
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        发布时间：2022-09-18
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