最新刊期
      卷 0 ， 期 0 ， 2020
      • Shi-tong ZENG,Yong YANG,Xu-bo YUAN,Jin CHANG
        Vol. 19, Issue 10, Pages: 1-9(2006) DOI: 10.14028/j.cnki.1003-3726.2006.10.001
        摘要：Peptide dendrimer,as a member of dendrimeric materials,has a lot of unique physical and chemical characteristics compared to normal peptide chains.It has a great varieties of applications in chemical,biological and medical areas.The synthesis of peptide dendrimers reported in recent years were briefly introduced in this review.  
        关键词：Amino acid;Peptide;Dendrimer;Synthesis   
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        发布时间：2022-09-18
      • Min JIANG,Xiao_bin DING,Zhao_hui ZHENG,Xu CHENG,Yu_xing PENG
        Vol. 19, Issue 10, Pages: 10-15,28(2006) DOI: 10.14028/j.cnki.1003-3726.2006.10.002
        摘要：A review was given in Synthesis and studies of organic-solvent fluorinated polyurethanes and aqueous fluorinated polyurethane .Different synthesis methods of fluorinated polyurethane and properties of different of fluorinated polyurethane were discussed .It was found that the fluorinated polyurethanes differ from the polyurethane non-containing fluorine .  
        关键词：Fluorinated polyurethane;Fluorinated polymer;Synthesis;Studies   
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        发布时间：2022-09-18
      • Ying-xin QIU,Yi-xian WU,Cheng-long ZHANG,han ZHU,Guan-ying WU
        Vol. 19, Issue 10, Pages: 16-22,81(2006) DOI: 10.14028/j.cnki.1003-3726.2006.10.003
        摘要：The kinetics and mechanism of TiCl4 coinitiating cationic polymerization of isobutylene (IB) or styrene (St) were discussed in this paper.The reaction order with respect to TiCl4 could be either first-order or second-order due to the affection of the concentration of TiCl4 or monomer,the donicity of electron donors,etc.And it has been suggested that the second-order dependency on TiCl4 was attributed to the dimeric gegenions which formed via monomeric TiCl4 ionizing a dormant tert-alkyl chloride chain end to create an activated chain with a monomeric gegenion TiCl5-,and then the monomeric gegenion reacted with another molecule of TiCl4 to form the dimeric gegenion Ti2Cl9-.  
        关键词：Cationic polymerization;Mechanism;Kinetics;Styrene;Isobutylene   
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        发布时间：2022-09-18
      • Ming-xing WEI,Jin-shui YAO,Xiao-dong WANG,Guang WU,Xi-yan ZHANG,Qian-qian HE
        Vol. 19, Issue 10, Pages: 23-28(2006) DOI: 10.14028/j.cnki.1003-3726.2006.10.004
        摘要：The review is mainly concerned with the recent development in the Chiral stationary phases of HPLC and the applications of Chiral stationary phase used in HPLC.The advantages and disadvantages of different polymerbased Chiral stationary phases are discussed.The problems at present,the research direction and focus for the future have been put forward.  
        关键词：High performance liquid chromatography;Polymer-based Chiral stationary phase;Chiral resolution   
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        发布时间：2022-09-18
      • Tian-xu SUN,Li WANG,Xiao-chen DONG,Wei WANG
        Vol. 19, Issue 10, Pages: 29-35(2006) DOI: 10.14028/j.cnki.1003-3726.2006.10.005
        摘要：Progress in the study on propagation mechanism of the isotactic-atactic stereoblock polypropylene chain is reviewed,including oscillating metallocene catalysts,C1-symmetric metallocene catalysts,binary C1-symmetric and C2-symmetric metallocene catalysts,and the post-metallocene catalysts.  
        关键词：Metallocene;Post-metallocene;Isotactic-atactic stereoblock polypropylene;Propagation mechanism   
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        发布时间：2022-09-18
      • Jian-sheng CHEN,Hong-jun ZUO,Hai-xia YANG,Zhi-qiang TAO,Lin FAN,Shi-yong YANG
        Vol. 19, Issue 10, Pages: 36-42,102(2006) DOI: 10.14028/j.cnki.1003-3726.2006.10.006
        摘要：Aromatic polyimides are widely used during the last twenty years,especially phenylethynyl terminated polyimide because of their excellent properties.Recent advances in the development of phenylethynyl terminated polyimides are presented.In addition,relationship of chemical structure,synthesis and properties were are also analyzed.  
        关键词：Phenylethynyl terminated polyimide;Structure and properties;Thermal properties   
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        发布时间：2022-09-18
      • Chun-hui LUO,Na CAI,Yong-shen XU
        Vol. 19, Issue 10, Pages: 43-47(2006) DOI: 10.14028/j.cnki.1003-3726.2006.10.007
        摘要：Droplets nucleation is the distinctive features of miniemulsion polymerization. During this polymerization processes,the need for mass transfer of the monomers through the aqueous phase is minimized even neglected.Thus,materials that are not easy to be prepared by other polymerization techniques can be obtained,such as superparamagenetic latex particle,high solids low viscosity latexes,encapsulation of inorganic solids.This article deals with the fundamental aspects involved in the preparation and polymerization of monomer miniemulsion.The applications of miniemulsion polymerization are also reviewed.  
        关键词：Miniemulsion polymerization;Encapsulation of inorganic particles;High solids low viscosity latexes   
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        发布时间：2022-09-18
      • Zun-li MO,Gui-ping NIU,He-jun LI,Yan-zhi LIU,Hong CHEN
        Vol. 19, Issue 10, Pages: 48-51,89(2006) DOI: 10.14028/j.cnki.1003-3726.2006.10.008
        摘要：The synthesis of a series of polydisperse hyperbranched poly( amine-ester) s based upon pentaerythritol ( as a core molecule) and N, N-diethylol-3-amine methylpropionate is described, proceeding in preudo-one-step manner .The molecular composition of HPAE was characterized by GPC, FT-IR, 1H NMR and TGA .The thermoset of hyperbranched poly( amine-ester) synthesized in this study becomes better as the generation increases .So, those materials may be modified to meet particular application .Then highly uniform and monodisperse Nd nanoparticles, protected by hyperbranched poly( amine-ester) , were prepared in aqueous solution .Transmission electron microscopy (TEM) has been used to study the structure and characterization of the nanocomposites .From which it showed that Nd nanoparticles were formed inside HPAE and the size distribution fits a lognormal distribution as the generation increases.Those excellent dispersivity and good results allow for a complete prepare of nanoparticles by simple precedure .  
        关键词：Hyperbranched poly( amine-ester);Nanoparticles;Preparation;Functionalization   
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        发布时间：2022-09-18
      • Xin-an ZHANG
        Vol. 19, Issue 10, Pages: 52-58(2006) DOI: 10.14028/j.cnki.1003-3726.2006.10.009
        摘要：This paper discussed the sound absorption properties of polyester fabric backed with cavity.In our study,different theory was applied to explain the properties of polyester fabric backed with cavity.The conclusion is that the stand wave in the tube will not change their frequency and phase by the absorption of fabric,the Zwikker and Costen theory can give the absorption law at different frequency roughly,the first maximum sound absorption coefficient frequency can be got by the perforated resonance theory.The capillary sound absorption theory and microperforated resonance theory is not agree with the practice of polyester fabric.  
        关键词：Polyester fabric;Stand wave in the tube;Zwikker and Costen theory;Perforated resonance theory;Capillary sound absorption theory;Micro-perforated resonance theory   
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        发布时间：2022-09-18
      • Hui ZHENG,Yu-ping WEI,Jing CHENG,Fa CHENG
        Vol. 19, Issue 10, Pages: 59-69(2006) DOI: 10.14028/j.cnki.1003-3726.2006.10.010
        摘要：This paper reviewed the synthesis pathway,properties and function of natural polymer surfactant,such as starch,cellulose and chitosan.  
        关键词：Starch;Cellulose;Chitosan;Polymeric surfactant;Surface activity   
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        发布时间：2022-09-18
      • Fang CHEN,Xiao-yan MA,Xiao-hong QU,Yun HUANG,Xue-li YAO
        Vol. 19, Issue 10, Pages: 70-75(2006) DOI: 10.14028/j.cnki.1003-3726.2006.10.011
        摘要：The current development and problems of gel polymer electrolyte ( GPE) are summarized, especially the two novel kinds of modifying GPE .The conductivity of nanocomposite gel polymer electrolyte (NGPE) is higher than normal GPE .In addition, owing to the reducing of the crystallinity of the polymer matrix, the stability and the mechanical properties of GPE are improved .For the microporous gel electrolyte, the conductivity and the dimensional stability increases in a wider temperature range .Finally, the tendency of the GPE is also introduced .  
        关键词：Gel electrolyte;Polymer;Nanocomposites;Microporous   
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        发布时间：2022-09-18
      • Dan ZHOU,Yan-mei WANG
        Vol. 19, Issue 10, Pages: 76-81(2006) DOI: 10.14028/j.cnki.1003-3726.2006.10.012
        摘要：The capillary electrophoresis (including capillary array electrophoresis--CAE and microchip electrophoresis--MCE) using non-gel sieving matrices is one of the most important techniques for DNA separation. Addition of certain additives into low viscous non-gel sieving matrices is an efficient and simple method to overcome the difficulty of filling capillaries and enhance DNA separation.This paper reviews the effect of additives (such as polyhydroxy compounds,montmorillonite clay,gold nanoparticles (GNPs),PEGylated-latex) on improved DNA separation by capillary electrophoresis in non-gel sieving matrices.  
        关键词：Capillary electrophoresis;DNA separation;Non-gel sieving matrices;Additives;Effect   
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        发布时间：2022-09-18
      • Xiao-qiang FENG,Sheng YANG,Zhong-xing SU,Hui-xue LI,Hai-hong ZHAO
        Vol. 19, Issue 10, Pages: 82-89(2006) DOI: 10.14028/j.cnki.1003-3726.2006.10.013
        摘要：This paper contained the newest literatures on the degradation of chitosan at home and abroad in recent decade years , and gave an systematic summary on the low molecular weight chitosan on preparation , separation , purification and distinguishing .  
        关键词：Chitosan;Degradation;Preparation;Separation;Purification;Distinguishing   
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        发布时间：2022-09-18
      • Yan-lin CAO,Jing-bo YIN,Shi-feng YAN
        Vol. 19, Issue 10, Pages: 90-97(2006) DOI: 10.14028/j.cnki.1003-3726.2006.10.014
        摘要：Recent research achievements of the biodegradable poly(lactic acid)(PLA)using copolymerization , blend , plasticization , composite , et al , have been reviewed in this article .The wide application in the field of biomedicine , textile , packaging were described in details .The paper also provided a prospect for the recent trend of PLA .  
        关键词：PLA;Biodegradable;Modification;Plasticization;Blend;Copolymerization;Composite;Application   
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        发布时间：2022-09-18
      • Ming-hua LIU,Guang-ming CHEN,Zong-neng QI,De-zhu MA,Xiao-ming LIU,Yong-mei MA
        Vol. 19, Issue 10, Pages: 98-102(2006) DOI: 10.14028/j.cnki.1003-3726.2006.10.015
        摘要：Due to the nucleate of clay and confined space formed by the silicate layers , crystallization behavior of polyamide 6 /clay nanocomposites (PA6CN)is greatly different with polyamide(PA6), which attracts widely interests . Here , recent studies of the basic character , effect of thermal treatment , processing on the crystallization and the crystallization kinetics of PA6CN have been reviewed .  
        关键词：Crystallization behavior;Polyamide 6;Nanocomposites;Clay   
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        发布时间：2022-09-18
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