最新刊期
      卷 16 ， 期 4 ， 2003
      • Ping CHEN,Hui CHENG,Xi-gao JIAN,Ju-long GAO,Yan ZHANG
        Vol. 16, Issue 4, Pages: 1-9(2003) DOI: 10.14028/j.cnki.1003-3726.2003.04.001
        摘要：Epoxy resin and the glass fiber reinforced epoxy matrix composite with unique properties have been widely used in many filed. In this review article,the progress of curing mechanism,curing kinetic,and relation between the cured product structure and the properties of several latent epoxy cured system; Influence of content,orientation of fiber,and coupling agents on the dielectric properties of glass fiber reinforced epoxy matrix composite and interlayer studies was summarized. The highlights of the article are as follows: Curing mechanism ,kinetic,reactivities of epoxy resins cured with 2-ethy-l4-methylimidazole; curing and the properties of cured compound for rare-earth organometallic compound ([Mt (acac) n,MrAn] ) ,carboxylic acid double salt of tertiary amine (R3N·HA) /Anhydride/epoxy resin system; co-curing,product structure,and relation between structure and property of epoxy and cyanate resin system; Curing mechanism and kinetics of boron-amine complex curable epoxy resin,influence of content and orientation of fiber electrical property of glass fiber reinforced epoxy matrix undirection composite,influence of coupling agents on dielectric property of glass fiberreinforced epoxy resin matrix composite and interlayer.  
        关键词：Epoxy resins;2-ethy-l4-methylimidazole;Anhydride;Boron-amine complex;Cyanate;Resin matrix composite   
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        发布时间：2022-09-18
      • Jin-gang LIU,Min-hui HE,Li-fang WANG,Hai-xia YANG,Yan-feng LI,Lin FAN,Shi-yong YANG
        Vol. 16, Issue 4, Pages: 10-24(2003) DOI: 10.14028/j.cnki.1003-3726.2003.04.002
        摘要：In the article,the latest research and application development of fluorinated polyimides have been summarized. 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. The applications of fluorinated polyimides in electro-optic ansd liquid crystal display (LCD) and low dielectric constant materials fields,especially the corresponding works of institute of chemistry were discussed in detail. In order to meet the stringent needs of microelectronics industry on materials,the functional fluorinated polyimides must be researched and developed.  
        关键词：Fluorinated polyimides;Microelectronic;LCD;Low dielectric constant   
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        发布时间：2022-09-18
      • Jun-feng ZOU,Zhi MA,You-liang HU,Ju-wei SONG
        Vol. 16, Issue 4, Pages: 25-31(2003) DOI: 10.14028/j.cnki.1003-3726.2003.04.003
        摘要：The advance in living coordination polymerization for olefin was reviewed. The living polymerization was commented with respects as follows: characteristics of living polymerization,structure of those catalysts ,types of monomer,and control of conditions.  
        关键词：Catalysts for living polymerization;Living polymerization;Coordination polymerization   
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        发布时间：2022-09-18
      • Qian GAO,Hong-ye SU,Jian CHU
        Vol. 16, Issue 4, Pages: 32-37(2003) DOI: 10.14028/j.cnki.1003-3726.2003.04.004
        摘要：Methematical models for polymerization processes can be divided three levels: microscale,mesoscale and macroscale. This paper concentrates on the topics of detailed mathematical models of olefins polymerization in different levers,with the goals of outlining the development and present situation of computer simulation both in domestic and abroad,introducing the research methods and study fields,and discussing it development prospect.  
        关键词：Olefin polymerization;Mathematical model;Active site;Kinetics;MWD   
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        发布时间：2022-09-18
      • Li XU,Yue-xin HAN,Guo-sheng GAI
        Vol. 16, Issue 4, Pages: 38-43(2003) DOI: 10.14028/j.cnki.1003-3726.2003.04.005
        摘要：China is a country with a large storage capacity of wollastonite. The wollastonite is widely used in different kinds of resins. Many factors can influence the mechanical properties of the resin matrix wollastonite composite. In this paper,some research progresses on this kind of composites were reviewed from the views of resin matrices and wollastonite fillers. The latest development of wollastonite’s surface treatment and the mechanics of polymer’s reinforcement and toughening were also discussed.  
        关键词：Resin;Wollastonite;Composite   
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        发布时间：2022-09-18
      • Mei-rong HUANG,Jian WANG,Xin-gui* LI
        Vol. 16, Issue 4, Pages: 44-52(2003) DOI: 10.14028/j.cnki.1003-3726.2003.04.006
        摘要：The synthesis and liquid crystalline (LC) behavior of LC3-and N-substituted polypyrroles,a new type of conducting LC polymer,are summarized systematically. It is pointed out that LC polypyrrole derivatives can be obtained through chemically oxidative polymerization,electrochemically oxidative polymerization and dehalogen polycondensation. They all possess thermotropic LC behavior,most of them show smectic LC phase,and a few of them show nematic LC phase. Some of them show two types of smectic LC phases and some of them show monotropic LC phase. The polypyrroles having the LC mesogens on N-substituted position exhibit more stable LC state than those having the LC mesogens on3-substituted position. Long methylene spacers and polar LC side chain can form large LC domains and then give stable LC state. Uniaxial orientation of LC N-substituted polypyrrole can be formed by a friction technique. It is hopeful that the big intractability of the processing and formation of the polypyrrole could be overcome because of the successful preparation of polypyrrole derivatives exhibiting thermotropic liquid crystallinity.  
        关键词：Polypyrrole derivatives;Synthesis;Liquid crystalline behavior;Conductivity   
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        发布时间：2022-09-18
      • Xiao-chen DONG,Ji-dong HE,Cun-guo WANG,Hong-ge GUO
        Vol. 16, Issue 4, Pages: 53-56(2003) DOI: 10.14028/j.cnki.1003-3726.2003.04.007
        摘要：The newly advances in thermosensitive hydrogels,which have different Lower Critical Solution Temperature (LCST) and response tates based on different ratios of hydrophilic and hydrophobic groups,copdymerlzing with ion monomers,adjusting molecular sturctures and swelling agents,were reviewed in accordance with their synthesises. In this paper,the thermosensitive hydrogels applications in drug delivery systems and seperation ect. were also discussed.  
        关键词：Thermosensitivity;Hydrogels;Lowe Critical Solution Temperature (LCST)   
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        发布时间：2022-09-18
      • Qing-yong CHEN,Yue-sheng LI,Zhi-shen MO
        Vol. 16, Issue 4, Pages: 57-66,72(2003) DOI: 10.14028/j.cnki.1003-3726.2003.04.008
        摘要：The complex polymorphism and the structural characteristic of various crystal forms are reviewed in syndiotactic polypropylene. The progress of crystallized and melting behaviors is also summarized at length in this paper.  
        关键词：Syndiotactic Polypropylene;Polymorphic forms;Crystallized behaviors   
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        发布时间：2022-09-18
      • Wen-juan WU,Dong-mei XU,Ke-da ZHANG,Xiu-lin ZHU,Chun-hua NING
        Vol. 16, Issue 4, Pages: 67-72(2003) DOI: 10.14028/j.cnki.1003-3726.2003.04.009
        摘要：Polyamidoamine (PAMAM) dendrimers,which are one of three kinds of commercialized dendrimers ,have been studied more completely in dendritic chemistry. Currently,the hot point in this field focuses on their functionality and application. Their excellent potential applications have been shown in many areas, such as surfactant,catalyst,nanocomposite,metal nanomaterial,membrane material and conductive material.  
        关键词：Polyamidoamine (PAMAM);Dendrimers;Functionality;Application   
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        发布时间：2022-09-18
      • Zheng-bin XIA,Yan-hong ZHANG,Wei-ping TU
        Vol. 16, Issue 4, Pages: 73-78(2003) DOI: 10.14028/j.cnki.1003-3726.2003.04.010
        摘要：Emulsion polymerization is the most common and useful method for preparing waterborne organosilicone polymers. In this paper,the silicone monomers or silicone-containing pre-polymers used in emulsion polymerization,the polymerization process and the stability of emulsion systems are all reviewed. The challenges in the synthesis of waterborne organosilicone polymers by emulsion polymerizing method are put forward ,and the progress having made in this field are also discussed.  
        关键词：Waterborne organosilicone polymers;Emulsion polymerization;Waterborne coatings   
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        发布时间：2022-09-18
      • Huan CHEN,Guo-jian WANG
        Vol. 16, Issue 4, Pages: 79-84(2003) DOI: 10.14028/j.cnki.1003-3726.2003.04.011
        摘要：The concept of iniferter and the principle of "living" radical polymerization initiated by the iniferter were introduced. And the application and development of the iniferter in the preparation triblock copolymer of ABA type and graft copolymer were summarized.  
        关键词：Iniferter;Living radical polymerization;ABA type triblock copolymer;Graft copolymer   
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        发布时间：2022-09-18
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