最新刊期
      卷 2 ， 期 4 ， 1989
      • Jikai Zhang
        Vol. 2, Issue 4, Pages: 7-12(1989) DOI: 10.14028/j.cnki.1003-3726.1989.04.002
        摘要：This article set forth the current states of silicone products industry and expects the statue and function in the information society besing on the tendency of the production development, production technology, market, technology developing and etc.  
        关键词：Silicone;Silicone rubber (Silicone elastomer);Silicone resin;Silicone fluid;Siliane cupple agent;Silioxane;Chlorosilane   
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        发布时间：2022-09-18
      • Wenqiang Huang
        Vol. 2, Issue 4, Pages: 13-20(1989) DOI: 10.14028/j.cnki.1003-3726.1989.04.003
        摘要：This review with 41 references describes the application of polymeric protecting groups in monoblocking symmetrical bifunctional compounds to prepare unsymmetrical compounds, in asymmetrical synthesis as chiral auxiliaries and in synthesis of insect sex pheromones and unsymmetrical porphyrins and phthalocyanines as polymeric supports.  
        关键词：polymeric protecting groups;Polymer—supported organic synthesis;Asymmetric   
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        发布时间：2022-09-18
      • Wen Zheng
        Vol. 2, Issue 4, Pages: 21-24(1989) DOI: 10.14028/j.cnki.1003-3726.1989.04.004
        摘要：This is a comprehensive review, dealing with the develop ment of polymer drag reducing additive and their application on fluid drag reduction.  
        关键词：Polymer;Drag reducing agent;Turbulent;Transportation;Drag reducing efficiency   
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        发布时间：2022-09-18
      • Yuanze Xu
        Vol. 2, Issue 4, Pages: 25-31(1989) DOI: 10.14028/j.cnki.1003-3726.1989.04.005
        摘要：Various dynamic behaviors of melts and concentrated solutions ot polymers rely on the typical interaction of long chain molecules-the entanglement. Remarkable progress has been made in this branch of polymer physics in recent years. Starting from the phenomena and basic concepts of entanglements we review the evolution from the network theory to the reptation model and emphasis the importance of the tube concept in segment scale to the new theory and the demand for a thorough investigation of the concept.  
        关键词：Entanglement in polymer melts and concentrated solutions;Network theory;Tube model of Doi & Edwards;Reptation   
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        发布时间：2022-09-18
      • Guoxiang Cheng,Jing Sheng,Ningxiang Shen,Kangde Yao
        Vol. 2, Issue 4, Pages: 32-37(1989) DOI: 10.14028/j.cnki.1003-3726.1989.04.006
        摘要：The progress in syntheses, factors to effect the morphology, methods to judg the morphology, as well as the relationship between structure and property about core-shell poly (meth) acrylate composite latex wete reviewed with 24 references.  
        关键词：Core-shell particles;Composite latex;Poly(meth)acrylate;Micro phase separation;Design of polymer microspheres   
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        发布时间：2022-09-18
      • Hongzhi Zhang
        Vol. 2, Issue 4, Pages: 38-47(1989) DOI: 10.14028/j.cnki.1003-3726.1989.04.007
        摘要：Mechanisms of ring-opening polymerization and copolymerization of cyclic ethers and applications of the products were reviewed with 46 references.  
        关键词：Ring-opening polymerization;Cyclic ether;polyether;Copolyether;Telechelic oligomer;Living chain   
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        发布时间：2022-09-18
      • Guanwen Chen,Jiongming Li,Shimin Zhang
        Vol. 2, Issue 4, Pages: 48-53,56(1989) DOI: 10.14028/j.cnki.1003-3726.1989.04.008
        摘要：Variable—pore-size membrane is a new kind of selective separaation membrane. The separation mechanism of this kind of membraoe is different from that of the other ordinary membrane processes now used. In the separation process, the pore size or permeation channel of this kind of membrane isdependent on the operation condtion(such as pH value, formation of complex, applying electric field, etc.)and can be controlled so that mixture feed can be separated selectively. In this paper, the principle of the membrane pore size variation, Selection of the membrane material, device of the membrane structure and the application of this kind of membrane have been introduced.  
        关键词：Variable—pore-size membrane;Principle;Application   
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        发布时间：2022-09-18
      • Juxian Zhang,Zhixian Xu
        Vol. 2, Issue 4, Pages: 54-56(1989) DOI: 10.14028/j.cnki.1003-3726.1989.04.009
        摘要：Sulfonated, copolymer of styrene-maleic anhydride is prepared directly by the sulfonation of copolymer of styrene and maleic anhydride. Because mary sulfonates and carboxylates anions are involed in the molecular chain, it is widely applied as diluent of fluid slurry, stabilizer of water, additive of cement and tanning agent of leather, etc.  
        关键词：Styrene;Maleic anhydride;Copolymer sulfonate   
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        发布时间：2022-09-18
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