最新刊期
      卷 15 ， 期 3 ， 2002
      • Xiao-yin HONG,Zhong-zhe LI,Dan LIU,Bing WU,Jian-ping LU,Sheng-quan DUAN,Ming CHEN,Pei-qing WANG
        Vol. 15, Issue 3, Pages: 1-4,18(2002) DOI: 10.14028/j.cnki.1003-3726.2002.03.001
        摘要：Development-free vapor Photolithography,which was discovered in 1980,is a very unique technology ,however,its mechanism was not clearly understood.A serious of researches on mechanism was carried out by Xiaoyin Hong et al.In this paper the results of the mechanism researches are given.It was proved that the DFVP is based on the photo-induced difference of concentration of etching accelerators in the polymer film, while the traditional photolithography is base on photo-induced difference of solubility of the polymer film. Based on the proposed mechanism some phenomenon involved in DFVC are explained and some improvements have been made.  
        关键词：Photolithography;Photoresist;Development;Silicon dioxide;Hydrofluoride acid   
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        发布时间：2022-09-18
      • Dong-zhong CHEN,Lei WAN,Jiang-Lin FANG,Xue-Hai YU
        Vol. 15, Issue 3, Pages: 5-18(2002) DOI: 10.14028/j.cnki.1003-3726.2002.03.002
        摘要：Supramolecular liquid crystalline polymers(SLCPs)prepared by self-assembly processes through the formation of intermolecular interactions such as charge transfer,ionic interaction and hydrogen bonding are reviewed,and the progress on device and application of SLCPs as dynamically functional materials is summarized. The future developing directions of SLCPs are also anticipated.  
        关键词：Liquid crystalline polymer;Supramolecular chemistry;Self-assembly;Dynamically functional materials;Noncovalent bond   
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        发布时间：2022-09-18
      • Guo-jie WANG,Xiao-gong WANG
        Vol. 15, Issue 3, Pages: 19-23(2002) DOI: 10.14028/j.cnki.1003-3726.2002.03.003
        摘要：Dendrimers containing azobenzene chromophores is a new kind of functional macromolecules. The study on its synthesis and photoresponsive properties is one of the most active research fields in macromolecular science.This article reviews the synthesis,structure and properties of the dendrimers with photoresponsive azobenzene units in the exterior,interior,or throughout the dendritic architecture.The photoresponsive properties are discussed in detail.  
        关键词：Dendrimer;Azobenzene;Photoresponsive property   
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        发布时间：2022-09-18
      • Liu-sheng ZHA,Hai-feng GAO,Wu-li YANG,Xin-guo JIANG,Shou-kuan FU
        Vol. 15, Issue 3, Pages: 24-32(2002) DOI: 10.14028/j.cnki.1003-3726.2002.03.004
        摘要：Polymer nanoparticles hold great potential application in drug delivery system .The advance of polymer nanoparticles for drug delivery system is reviewed in this paper, according to their preparing methods : polymerization of monomers, dispersion of the preformed polymers and self-assembly of amphilic copolymer .  
        关键词：Polymer nanoparticles;Drug delivery system;Targeting delivery   
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        发布时间：2022-09-18
      • Jiao-guo DENG,Jian-hua WANG,Xin-ping LONG,Yu-xing PENG
        Vol. 15, Issue 3, Pages: 33-37(2002) DOI: 10.14028/j.cnki.1003-3726.2002.03.005
        摘要：The preparation methods,properties of polyaniline/inorganic materials composites and polyaniline/ polymer composites are summarized.Some suggestions concerning the development of polyaniline composites are given out.  
        关键词：Polyaniline;Composite;Conductive composite   
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        发布时间：2022-09-18
      • Zhen-hong Luo,Xiao-li Zhan,Hong-qiu CHEN,Yong-rong Yang,Peng-you YU
        Vol. 15, Issue 3, Pages: 38-44,74(2002) DOI: 10.14028/j.cnki.1003-3726.2002.03.006
        摘要：Copolymerization Mechanism of Octamethycyclotetrasiloxane and Amio-organsilicone monomer was summarized from the preparation technique in the text .The copolymerization reaction mechanism was emphasized.  
        关键词：Amio-Polyorganosiloxane;Reaction mechanism;Negative ion copolymerization mechanism;Positive ion copolymerization mechanism   
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        发布时间：2022-09-18
      • Zhi-gang SHEN,Shang-an LIN
        Vol. 15, Issue 3, Pages: 45-51,68(2002) DOI: 10.14028/j.cnki.1003-3726.2002.03.007
        摘要：The current development of catalysts used for syndiotactic polymerization of styrene has been reviewed.This paper focused on some high active catalysts including cyclopentadienyltitanium,indenyltitanium ,fused-ring titanium,fluorinated-titanium and non-metallocene titanium.The different activity of catalysts was explained with the electron and steric effect of substitunents and the stability of active species.  
        关键词：Syndiotactic polystyrene;Catalysts;Metallocene-titanium;Review   
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        发布时间：2022-09-18
      • Jie-ping LIU,Tian-bai HE
        Vol. 15, Issue 3, Pages: 52-57,79(2002) DOI: 10.14028/j.cnki.1003-3726.2002.03.008
        摘要：The structure,morphology and melting behaviors of metallocene-catalyzed branched polyethylene have been studied in this review.The influence of length and content of branches on physics property of branched polyethylene has been discussed.  
        关键词：Metallocene-catalyzed branched polyethylene;Structure;Morphology;Melting Behaviors   
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        发布时间：2022-09-18
      • Jun-tao LUO,Wen-qiang HUANG
        Vol. 15, Issue 3, Pages: 58-68(2002) DOI: 10.14028/j.cnki.1003-3726.2002.03.009
        摘要：This review introduced the various methods of detection and identification of polymer-supported functional groups in solid-phase organic synthesis.  
        关键词：Polymer-supported functional groups;Chemical analysis methods;Instrument analysis methods;Solid phase organic synthesis   
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        发布时间：2022-09-18
      • Zhong-li LEI,Chang-mou Qi,Ya-xin MENG,Chang-hai LIU
        Vol. 15, Issue 3, Pages: 69-74(2002) DOI: 10.14028/j.cnki.1003-3726.2002.03.010
        摘要：Forming mechanism of double percolation phenomenon in electrical conductive composites, distribution of carbon black particles and its application were reviewed.  
        关键词：Double percolation;Electrical conductive composites;Application   
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        发布时间：2022-09-18
      • Yu-yan LIU,Ling-hui MENG,An SHANG,Wei WANG
        Vol. 15, Issue 3, Pages: 75-79(2002) DOI: 10.14028/j.cnki.1003-3726.2002.03.011
        摘要：In view of the difficulties of practice,a CAI course ware for plastic shaping technique practice was designed.The primary principle,production equipment,process control and corresponding products of various plastic shaping techniques were introduced in this software.By using this CAI course ware,the students can carry out simulative practice and the practice quality can be improved.  
        关键词：Plastic shaping technique;Practice;CAI   
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        发布时间：2022-09-18
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