最新刊期
      卷 9 ， 期 1 ， 1996
      • Fengcai Lu
        Vol. 9, Issue 1, Pages: 1-7,33(1996) DOI: 10.14028/j.cnki.1003-3726.1996.01.001
        摘要：In the past forty years, rapid development of high technology, particularly in aerospace,electronic, mechanical and chemical industries , and subsequently in separation process industries,puts new demands on heat - resistant polymers. Aromatic heterocyclic polymers ,which have the ability to withstand high temperature are thermally stable polymers. This paper briefly reviews several important aromatic heterocyclic polymers,namely polyimides, polybenzimidzoles , polybenzoxazoles, polythiodiazoles, polyphenylquinoxalines, polyphenyl - 1,2, 4 - triazines and polyprrolones. Either all or one of them can meet the needs for the above mentioned high technology. It is believed that the research work and applications of these polymers can be continually developed in the future.  
        关键词：Aromatic heterocyclic polymers;Rigid chain;Heat resistant polymers   
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        发布时间：2022-09-18
      • Shufen Zhang,Xiulan Cui,Jinzong Yang
        Vol. 9, Issue 1, Pages: 8-17(1996) DOI: 10.14028/j.cnki.1003-3726.1996.01.002
        摘要：In this paper,the synthesis of the functional coloured polymers and its mechanium,characteristics,developing history and posibility have been reviewed in detail through numerous examples.  
        关键词：Functional coloured polymers;Additional polymerization;Polycondensation;Modification by chemical reaction;Metal - complex;Ladder polymer   
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        发布时间：2022-09-18
      • Yi Luo
        Vol. 9, Issue 1, Pages: 18-27(1996) DOI: 10.14028/j.cnki.1003-3726.1996.01.003
        摘要：In this paper,a general review with 105 refs. on the progress of controlled release methods is presented. Several controlled release methods, including microspheres and microcapsules,particles and microparticles,film,pellet or tablet ,hydrogel etc. are discribed in detail.  
        关键词：Controlled release method;Reservior devices;Matrix devices;Microspheres and microcapsules;Particles and microparticles;Film;Pellet or tablet;Hydrogel   
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        发布时间：2022-09-18
      • Chongli Zhong,Qingguo Ye,Lingmei Wang,Xiaoning Chen
        Vol. 9, Issue 1, Pages: 28-33(1996) DOI: 10.14028/j.cnki.1003-3726.1996.01.004
        摘要：Molecular parameters and their variation regularity with the chain structure for six equations of state,namely Cell,Flory,SS,SHT,SHTF and OCM were compared using Zoller's PVT data for some serial samples of PBD and PI in this work. As a result , some useful conclusions were obtained which are helpful for the understanding of the EOSs.  
        关键词：Cell theory;Equation of State;Molecular parameters;Polymer   
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        发布时间：2022-09-18
      • Ronghua Zheng,Yifeng Zhang,Zhiquan Shen
        Vol. 9, Issue 1, Pages: 34-38(1996) DOI: 10.14028/j.cnki.1003-3726.1996.01.005
        摘要：This article reviews briefly the copolymerization and mechanism of carbon monoxide with olefins and the derivatives of the copolymers obtained above.  
        关键词：Carbon monoxide;Olefins;Polyketone   
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        发布时间：2022-09-18
      • Yakai Feng,Jingwu Sun
        Vol. 9, Issue 1, Pages: 39-44(1996) DOI: 10.14028/j.cnki.1003-3726.1996.01.006
        摘要：In this paper photolysis mechanisms of polyketones polymeric materials are discussed in general. Photolysis machanisms of polyketones with carbonyl in main chain,such as CO/ E ,CO/P,Co/St,random and alternating copolymers from carbon monoxide and olefins are discussed with emphasis. Norrish type I and Ⅱ reactions always take place in photodegradation,but Norrish type Ⅱ reaction does not occur for polyketones without γ - H.  
        关键词：Polyketone;Photodegradation;Carbon monooxide coplymer   
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        发布时间：2022-09-18
      • Min Li,Enle Zhou,Jiping Xu
        Vol. 9, Issue 1, Pages: 45-50(1996) DOI: 10.14028/j.cnki.1003-3726.1996.01.007
        摘要：Molecular design method of preparing new types of liquid crystalline polymers was presented,the unique properties and the functions of the new types of the liquid crystalline polymers prepared by introducing intermolecular H - bond, ion interaction and intermolecular charge transfer interaction were reviewed. The properties and the structure of the liquid crystalline LB films and LC elastomers which were promising for application in optic and electronic devices were also discussed.  
        关键词：New types LCPs;Molecular design;Molercular arrangement   
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        发布时间：2022-09-18
      • Jiangquan An
        Vol. 9, Issue 1, Pages: 51-56,62(1996) DOI: 10.14028/j.cnki.1003-3726.1996.01.008
        摘要：This article introduces the latest progresses of polyolefin resins in production technology and new products development in foreign countries, and points out that metallocene catalysts, Catalloy technique and Spherilene technique are the spotlight of development and research. Metallocene catalysts technique is especially cared about because it can precisely control the malecular of polymer and can "custom - tailar" polymers of various structions,according to the user's requirements. Metallocene catalysts technique provides the possibility for developing more polyolefin resins of high performance.  
        关键词：Polyolefin;New Products;Process;LLDPE;Metallocene catalysts;PP   
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        发布时间：2022-09-18
      • Wenjun Wang,Bogeng Li,Zaizhang Yu,Zuren Pan
        Vol. 9, Issue 1, Pages: 57-62(1996) DOI: 10.14028/j.cnki.1003-3726.1996.01.009
        摘要：The progress in the research of kinetics modeling for the semi - continuous emulsion polymerizaiton was introduced,and the method of the modeling was discussed also. It was summed up that there exist three types of model,the fundamental model,real model,and general model. Model equations,which were set up by means of some assumptions,and according to mass balance,energy balance and polymerization rate equation, were solved by the numerical method combined with evaluation of model parameters,use of known model parameters and calculating methods of model variables.  
        关键词：Semi - continuous emulsion polymerization;Reaction kinetics;Mathematical model   
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        发布时间：2022-09-18
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