最新刊期
      卷 0 ， 期 0 ， 2020
      • Jin-gang LIU,Min-hui HE,Li-fang WANG,Hai-xia YANG,Yan-feng LI,Lin FAN,Shi-yong YANG
        Vol. 16, Issue 3, Pages: 1-14(2003) DOI: 10.14028/j.cnki.1003-3726.2003.03.001
        摘要：Fluorinated polyimides have been widely used in many high technical fields for the excellent thermal properties,electrical properties and mechanical properties. In recent years,with the development of microelectronics industry,fluorinated polyimides are gaining increasing attention in passivation and packaging applications. In the article,the latest research and application development of fluorinated polyimides have been summarized. The synthesis progress of fluorinated diamine and dianhydride monomers and polyimides, especially the corresponding works of Institute of Chemistry were discussed in detail. In order to promote the development of fluorinated polyimides,the new types of fluorinated monomers must be research detailedly first.  
        关键词：Fluorinated polyimides;Fluorinated diamine;Fluorinated dianhydride   
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        发布时间：2022-09-18
      • Min-qiao REN,Zhi-ying ZHANG,Zhi-shen MO,Hong-fang ZHANG
        Vol. 16, Issue 3, Pages: 15-22(2003) DOI: 10.14028/j.cnki.1003-3726.2003.03.002
        摘要：The kinetic models,equations and computational methods which involved the later stage kinetics in polymer crystallization were reviewed and several problems in this field were also discussed.  
        关键词：Later stage kinetics in polymer crystallization;Isothermal crystallization;Non-isothermal crystallization;Avrami equation;Two-stage crystallization model   
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        发布时间：2022-09-18
      • Meng-zhong CUI,Zhu-yun LI,Shi-ai XU
        Vol. 16, Issue 3, Pages: 23-28(2003) DOI: 10.14028/j.cnki.1003-3726.2003.03.003
        摘要：The relationships of structure and properties of the bioactive polymer xanthan gum had been Discussed in this paper. Form the properties to the development and applied of xanthan gum,from the antibiotic pharmaceuticals immobilized on xanthan gum to its sustained release and its delayed action,from the stabilization to the antiseptic effect of compositions,and preparation of siloxane-containing defoamer composition, we reviewed the research on xanthan gum all over the world in recent twenty years. And we also give some advices about how to develop and applied research on xanthan gum.  
        关键词：Xanthan gum;Structure and properties;Functional modification   
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        发布时间：2022-09-18
      • Guo-ying ZHANG,Wei-zhi WANG,Qiang WU
        Vol. 16, Issue 3, Pages: 29-33,56(2003) DOI: 10.14028/j.cnki.1003-3726.2003.03.004
        摘要：Copolymers can be used as effective compatibilizers in immiscible polymer blends. This review deals with the compatibilizing behaviors and compatibilizing mechanism of grafted and random copolymers.  
        关键词：Polymer blends;Compatibilization;Grafted Copolymers;Random Copolymers   
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        发布时间：2022-09-18
      • Xia LIAO,Jia-song HE
        Vol. 16, Issue 3, Pages: 34-46(2003) DOI: 10.14028/j.cnki.1003-3726.2003.03.005
        摘要：It is known that syndiotactic polystyrene exhibits complex polymorphism. There are four types of crystalline form,α,β,γ,and δ,and two types of mesomorphic form. In this paper,the progress of the polymorphism ,crystal transition,crystallization and melting behavior of syndiotactic polystyrene are reviewed.  
        关键词：Syndiotactic polystyrene;Polymorphism;Crystalline structure;Melting behavior   
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        发布时间：2022-09-18
      • Fang-lian YAO,Chang LIU,Ji-hong MENG,Yun BAI,Kang-de YAO
        Vol. 16, Issue 3, Pages: 47-56(2003) DOI: 10.14028/j.cnki.1003-3726.2003.03.006
        摘要：As a biomaterials,the biodegradable property of poly (lactic acid) is the most important. According to the different degradable properties,the use is different. In this paper,the recent studies on the controlled degradability of PLA are reviewed from blending and copolymerization,and the future work in this field is also evaluated.  
        关键词：Poly (lactic acid);Biodegradability   
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        发布时间：2022-09-18
      • Yan-jun WANG,Yu-xia WANG,Cai-deng YUAN,Tong-yu CAO
        Vol. 16, Issue 3, Pages: 57-63(2003) DOI: 10.14028/j.cnki.1003-3726.2003.03.007
        摘要：In this paper,the mechanism,kinetics and characteristics of the living radical polymerization with reversible addition-fragmentation chain transfer (RAFT) are reviewed in detail. The principles of selecting a proper RAFT agent for a given polymerization,and the synthesis process of the agent are presented briefly. Additionally,the development and application of the RAFT polymerization were summarized.  
        关键词：Living radical polymerization;Dithioester;Addition-fragmentation chain transfer;Dormant species   
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        发布时间：2022-09-18
      • Qian-ping RAN,Jia-ping LIU
        Vol. 16, Issue 3, Pages: 64-70(2003) DOI: 10.14028/j.cnki.1003-3726.2003.03.008
        摘要：More and more water-based polymers have been used widely in concrete field due to considerable understanding to the relations between structures and properties of materials. This article summaries the applications of water-based polymers used as concrete admixtures,such as water ruducers,air entraining agent,viscosity-enhancing admixture and shrinkage-reducing agent and so on. And also reviews the types,action mechanism,properties and applications of water-based polymers used in polymer-modified concrete or mortar. We hope that more and more chemical and materials researchers devote themselves to the study of concrete materials,and promote rapid development of concrete field.  
        关键词：Water-based polymer;Concrete admixtures;Polymer-modified concrete or mortar;Applications   
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        发布时间：2022-09-18
      • Run-Li JIA,Yan MING,Shun WAN
        Vol. 16, Issue 3, Pages: 71-79(2003) DOI: 10.14028/j.cnki.1003-3726.2003.03.009
        摘要：Reactive compatibilization has been a important way to improve compatibilization among polymers. Glycidyl Methacrylate (GMA) 、Maleic Anhydride (MAH) and Acrylic acid (AA) are main monomers. On the basis of mechanism of functional polymers of GMA、MAH、AA and using in polymer modification,this paper introduces worldwide progress in reactive compatibilization.  
        关键词：Reactive compatibilization;GMA;MAH;AA;Functional polymer   
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        发布时间：2022-09-18
      • Ping-ping ZHU,Hai-yang YANG,Ping-sheng HE
        Vol. 16, Issue 3, Pages: 80-83(2003) DOI: 10.14028/j.cnki.1003-3726.2003.03.010
        摘要：In teaching course of "The Structure and Properties of Polymers" ,it is necessary to introduce the new concepts emerging from the study of some basic physical problems in macromolecular condensed state and pay special attention to the great contributions of scholars in our country. The paper presents much discussion on some new concepts introduced in our teaching course of late years,such as dynamic contact concentration ,single-chain condensed state,cohensive entanglement et al.  
        关键词：Dynamic contact concentration;Single-chain macromolecular condensed state;Cohensive entanglement;Extremely dilute solution   
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        发布时间：2022-09-18
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