最新刊期
      卷 7 ， 期 4 ， 1994
      • Shouxi Chen,Wenhui Song,Renyuan Qian
        Vol. 7, Issue 4, Pages: 193-199(1994)
        摘要：The disclination in nematic phase of polymeric liquid crystals shows the schlieren texture with different number of dark brushes under polarized optical microscope,which is really a optical effect of the director orientation. In recent years, the study of disclination structure of liquid crystalline polymers is making great progress. The lamellar decoration, banded texture decoration and surface crack decoration have been developed to show the morphology of disclination in nematic phase of liquid crystalline polymers. In this paper the disclination structure in nematic phase and its new research development have been reviewed.  
        关键词：Polymeric liquid crystalline state;Nematic mesophase;Disclination;Lamellar decoration;Banded texture decoration;Surface crack decoration   
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      • Ziyong Zhang,Shangan Lin
        Vol. 7, Issue 4, Pages: 200-207,247(1994)
        摘要：Development on the oxygen - enriching polymer membranes which contain or bond organic metal compeses could bind molecular oxgen rapidly and reversibly was reviewed. The facilitated transport mechanism for the membranes was described by dual - mode transport model  
        关键词：Organic metal complex;Oxygen - enriching polymer membrane;Facilitated oxygen transport   
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        发布时间：2022-09-18
      • Chongli Zhong,Qingguo Ye
        Vol. 7, Issue 4, Pages: 208-214,223(1994)
        摘要：Theoretical basis and assumptions for the three most widely used equations of state for polymer liquids,named Flory, SL and SS EOSs,and the three new equations of state proposed by the author,named SHT,SHTF and OCM EOSs were introduced in this paper. The com- parisions were made using the P-V-T experimental data of 15 polymer liquids, 17 large molecular weight hydrocarbons and 6 organic solvehts. The results show that OCM EOS gave the best accuracy,the accuracy became worse in the order of SS,SHT,SHTF,Flory,SL. The conclutions are that,Open - Cell Model is most close to the real structure of liquids,the introduction of holes can improve on the cell model, and that the L - J potential can describe the interactions in liquids satisfactorily.  
        关键词：Equations of state;Polymer liquids;Cell;Lattice - fluid;hole theory   
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      • Xiaoquan He
        Vol. 7, Issue 4, Pages: 215-223(1994)
        摘要：Different sorts of artificial muscle polymer (AMP),the molecular structure, the shrink mechanism and the dynamical properties of AMP and natural muscle are discussed.  
        关键词：Functional polymer material;Artificial muscle;Mechanochemical conversion   
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      • Youyi Xu,Yuansheng Chen,Zhikang Xu,Hong Xu,Hongjun Wang
        Vol. 7, Issue 4, Pages: 224-228,233(1994)
        摘要：The application of LB techniques to conducting polymers is beening reviewed. The main topics are: the preparations of conjugated polymer LB films [including Polypyrrole、 Polythiophene、Poly (p - phenylenevinylene)、Polyaniline and their derivatives ]; characterizations of these LB films ;the relationship between conductivity and molecular structures and fabrication of the polymer molecules. At last, nonconjugated conducting polymer LB films are concerned.  
        关键词：Conducting polymers;LB films;Anisotropic conductivity   
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      • Gang Li,Xiaohuai Hou
        Vol. 7, Issue 4, Pages: 229-233(1994)
        摘要：In the synthesis and modification of new materials,the techniques of plasma plays a important role. In this paper,the application of plasma polymerization and treatment in the modification of polymer were reviewed.  
        关键词：Plasma;Plasma polymerization;Plasma treatment   
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      • Changfa Xiao
        Vol. 7, Issue 4, Pages: 234-240(1994)
        摘要：The present work is concerned with the axial compressional behavior of organic high - performance fibers and filmes by means of polarizing optical microscopy,scanning electron microscopy and X - ray diffraction. In the initial stage of compression,kink bands are formed at a proper angle to the draw axis,the molecular chains within the band were broken or bent,that local crystalline slip systems are responsible for the formation of the kink band. With progressive compression,new kink bands were formed near the kink bands that were formed in the initial stage of compression,indicating that compressional stress is concentrated at regions near the kink bands. In the final stage of compression,massive lateral displacement occurred from place to place along fiber axis and the fiber was almost sqeezed out of shape. It can be assumed that intermicrofi- brillar slip plays an important role at the final state of compression.  
        关键词：Wholly - Aromatic Polymer Fibers;Ultra - High Molecular Weight Polyethylene Film;Axial Compression;Crystalline Slip   
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      • Tieqi Li,Kun Qi
        Vol. 7, Issue 4, Pages: 241-247(1994)
        摘要：The history and developments in starch - filled plastics were reviewed according to the dependence of properties on structure and morphology. In preparation of starch - filled plastics, cautions should be taken to improve the interfacial compatability between starch and synthetic resin matrix,to lower the size of starch filler and to control its destructured level. The degrad- ability of starch - filled plastics and its assessment were also discussed based on its degradation mechanism,i. e.,a thermo -oxidative or photo -oxidative degradation of the synthetic matrix accelerated by starch biodegradation.  
        关键词：Starch - filled plastics;Compatability;Dispersity;Photo - biodegradation;Controlled Biodegradability   
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      • Zhenhao Huang
        Vol. 7, Issue 4, Pages: 248-254(1994)
        摘要：A review of the current development new progress of polycarbonate by interfa- cial polymrization process and melt transesterification process. The show study and technolgy development of polycarbonate was very lively.  
        关键词：Polycarbonate;Interfacial polymerization process;Melt transesterification process;Ring - opening polymerization of cyclic carbonarte oligomers;Non - phosgone transesteri fication process   
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