最新刊期
      卷 18 ， 期 4 ， 2005
      • Zhi-quan SHEN
        Vol. 18, Issue 4, Pages: 1-12(2005) DOI: 10.14028/j.cnki.1003-3726.2005.04.001
        摘要：Studies on rare earth catalysts in polymer syntheses are reviewed .The article reports the systematic studies including polymerization characteristics , polymerization parameter influences , polymerization mechanism and polymer structure and property on polymerizations of diene , acetylenes , alkylene oxides , alkylene sulfides , carbon dioxide copolymerization , lactide , caprolactone and cyclocarbonates by rare earth catalysts .  
        关键词：Polymer syntheses;Rare earth catalysts;diene;Acetylene;Alkylene oxide   
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        发布时间：2022-09-18
      • Bing-lin HE,Zuo-qing SHI
        Vol. 18, Issue 4, Pages: 13-19(2005) DOI: 10.14028/j.cnki.1003-3726.2005.04.002
        摘要：In the studies of this item, the paper contains three parts :the first part was the discovery of the synthesis of polystyrene macroporous ion exchange resins ;the second part was to study the preparation of the macroporous resins in the presence of inert solvent of different properties ;the third part was the investigation of the relationship between the structures and the properties .Based on the studies , it was proved that the properties of the macroporous resins possessed radioresistance , good ion exchange reaction kinetics and excellent mechanical strength . The macroporous ion exchange resins were not only exchanging very well with the inorganic ions , but also could be used for decolorization , catalyst and purification of organic substances .The macroporous resins without functional groups could be used as polymeric adsorbents .They can be used for the extraction and purification of natural products and also be used for antibiotics production , blood hemoperfution , environmental protection , etc .The macroporous ion exchange resins and adsorbents mentioned above have been produced and widely applied in chemical industry , medicine production , environmental protection , medical treatment , analysis and so on .  
        关键词：Macroporous pore;Macroporous ion exchange resin;Adsorbent;Extraction and separation   
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        发布时间：2022-09-18
      • Xi XU
        Vol. 18, Issue 4, Pages: 20-22(2005) DOI: 10.14028/j.cnki.1003-3726.2005.04.003
        摘要：A brief survey of work done by the author and author’s colleagues on the effect of ultrasonic wave, high speed stirring,microwave and pan-milling on structure and properties of polymer in hopes of gaining an innovations route to enhance the physical and mechanical properties of polymer materials and synthesis some new kind of polymers via polymer stress-induced reactions is given in this paper.  
        关键词：Stress-induced reactions;Ultrasonic wave;High speed stirring;Microwave;Pan milling;Rheological behavior of polymer material;Morphological structure;Polymer nanomaterial   
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        发布时间：2022-09-18
      • Xin-De FENG,Kun-Yuan QIU
        Vol. 18, Issue 4, Pages: 23-34(2005) DOI: 10.14028/j.cnki.1003-3726.2005.04.004
        摘要：The polymerizations of vinyl monomers in the presence of amine including benzoyl peroxide-tertiary aromatic amine,organic peroxide-amine and persulfate salt-aliphatic amine redox initiation system as well as the photo-induced charge transfer polymerization of vinyl monomer as electron acceptor using amine as electron donor were reviewed.Living radical polymerization and some new initiation systems for atom transfer radical polymerization (ATRP) developed in our lab,including the C-C type compound as initiator in conjunction with Fe(Ⅲ),Cu(Ⅱ) catalyst in reverse ATRP;the pseudo-halo transfer in normal ATRP using Cu(S2CNEt2) as catalyst or in reverse ATRP using Cu(S2CNEt2)Cl as catalyst;the in situ ATRP using S-S type compound tetraethylthiuram disulfide (TD) as initiator and FeCl3 or CuBr2 as catalyst were briefly summarized.  
        关键词：Amine-containing redox initiation system;Photo-induced charge transfer polymerization;Living radical polymerization;Atom transfer radical polymerization;Initiating polymerization mechanism   
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        发布时间：2022-09-18
      • Qing WU,Shang-an LIN
        Vol. 18, Issue 4, Pages: 35-41,22(2005) DOI: 10.14028/j.cnki.1003-3726.2005.04.005
        摘要：Researches on polymerization and copolymerization of olefins with Ziegler-Natta catalyst and metallocene catalyst from our laboratory are summarized in this paper.The design for catalyst and effects of the structure of transition metal catalyst and polymerization conditions on homo-and co-polymerizations of ethylene, propylene,1-butene,butadiene and styrene have been discussed.  
        关键词：Ziegler-Natta catalyst;Metallocene catalyst;Olefin polymerization;Copolymerization   
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        发布时间：2022-09-18
      • Xin-yi TANG
        Vol. 18, Issue 4, Pages: 42-50,34(2005) DOI: 10.14028/j.cnki.1003-3726.2005.04.006
        摘要：The project entitled " Statistic Theory of Polycondensation,Polyaddition and Crosslinking Polymers" , signed by Tang Aoqing,Shen Jiacong,Tang Xinyi,Chen Xinfang and Yan Deyue,was awarded the fourth national nature science second class prize.The basic content of the project has been reviewed briefly in this article.  
        关键词：Gelation;Chain length distribution;Sol gel distribution   
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        发布时间：2022-09-18
      • Yong-Fang LI
        Vol. 18, Issue 4, Pages: 51-57(2005) DOI: 10.14028/j.cnki.1003-3726.2005.04.007
        摘要：The main achievements of the project "Studies on Conducting Polypyrrole" (which won The Second Degree National Award on the Natural Sciences in 1995) and the recent development of the research after 1995 were introduced.The related contents include the electrochemical polymerization processes and mechanism,structures, stability and electrochemical properties of conducting polypyrrole,as well as the preparation of conducting polypyrrole composite materials.  
        关键词：Conducting polypyrrole;Conducting polymers;Electrochemical polymerization;Electrochemical properties;Doping structures   
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        发布时间：2022-09-18
      • Hui TANG,Xin-hua WAN,Xing-he FAN,Xiao-fang CHEN,Qi-feng ZHOU
        Vol. 18, Issue 4, Pages: 58-68(2005) DOI: 10.14028/j.cnki.1003-3726.2005.04.008
        摘要：Progress in the design,synthesis,characterization and relationship between structures and properties of mesogen-jacketed liquid crystalline polymers (MJLCPs) has been reviewed.An outlook for the future development in the area is proposed.  
        关键词：Thermotropic liquid crystalline polymer;Mesogen-jacketed liquid crystalline polymer;Block copolymer;Thermoplastic elastomer;Self-assembly;Optically active helical polymer   
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        发布时间：2022-09-18
      • De-yan SHEN
        Vol. 18, Issue 4, Pages: 69-75(2005) DOI: 10.14028/j.cnki.1003-3726.2005.04.009
        摘要：In this research project,many research achievements in macromolecular condensed state have been obtained and a number of new concepts in polymer physics were proposed.The main original points are as follows: single-chain macromolecular condensed state including single-chain glasses and single-chain single crystals;cohesive entanglement of polymer chains;the amorphous state of high global chain orientation but nearly random segmental orientation;dynamic contact concentration Cs;solidification induced band texture and so on.  
        关键词：Single-chain glasses;Single-chain single crystals;Cohesive entanglement;Dynamic contact concentration;Solidification induced band texture   
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        发布时间：2022-09-18
      • Han-fan LIU
        Vol. 18, Issue 4, Pages: 76-81(2005) DOI: 10.14028/j.cnki.1003-3726.2005.04.010
        摘要：A research account of author’s group on catalysis of polymer-stabilized metal nanoclusters was given.  
        关键词：Polymer;Platinum metals;Nanocluster;Nanoparticle;Catalysis   
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        发布时间：2022-09-18
      • Guang-zhao ZHANG,Ming JIANG,Chi WU
        Vol. 18, Issue 4, Pages: 82-88(2005) DOI: 10.14028/j.cnki.1003-3726.2005.04.011
        摘要：This review summarizes our work on folding and aggregation of polymer chains in water.We started with the folding or coil-to-globule transition of linear poly(N-isopropylacrylamide) (PNIPAM) homopolymer chains in water,and then studied the folding of hydrophilically or hydrophobically modified PNIPAM copolymer chains.The roles of hydrophobic and hydrophilic interactions in the folding were investigated.The intermediates in the folding process,i.e.,the molten globular state and the "ordered-coil" state between the random-coil and compacted globular states were observed.On the other hand,the aggregation and stabilization of amphiphilic polymer chains in water were also studied.Our results revealed that if the polymer chains form aggregates with a core-shell structure,the surface area occupied per hydrophilic moiety is a constant.Such a relation does not hold when some hydrophilic moieties are buried inside the aggregates,and the aggregates would develop into hyperbranched clusters as the amount of hydrophilic moieties increases.  
        关键词：Folding;Aggregation;Polymer Chain;Molecular Interaction   
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        发布时间：2022-09-18
      • Gi XUE,Gao-quan SHI,Shi JIN,Jun-feng ZHANG,Yun LU
        Vol. 18, Issue 4, Pages: 89-94(2005) DOI: 10.14028/j.cnki.1003-3726.2005.04.012
        摘要：Reported in this paper are the major scientific contents,academic peer-citations and-views,and achievements in the discipline development and talents cultivation of the project " Chemical and Electrochemical Polymerization of Organic Heterocyclic Compounds on Metal Surface" ,which was awarded as the Second Class of National Award of Natural Science in 2004.  
        关键词：Heterocyclic compounds;Chemical polymerization;Electrochemical polymerization;Metal surface;Conducting polymer   
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        发布时间：2022-09-18
      • Shi-jing XIAO
        Vol. 18, Issue 4, Pages: 95-99(2005) DOI: 10.14028/j.cnki.1003-3726.2005.04.013
        摘要：The CS-1 and CS-2 high efficiency catalysts were successfully applied in polypropylene production plants at home and abroad.The industrial application demonstrated that catalysts have high activity and superior comprehensive performance (including high stereospecivisity,good morphology,hydrogen adjustability and kinetic behavior) and the features of eminent PP isotacticity adjustability and resistibility to the impurities in propylene.In this paper the situation of the development,industrial production and the commercial application were briefly described.  
        关键词：Zeigler-Natta catalysts;Polypropylene;Polymerization   
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        发布时间：2022-09-18
      • Ri-guang JIN,Xiao-dong WANG,De-zhen WU,Hang-quan LI
        Vol. 18, Issue 4, Pages: 100-109(2005) DOI: 10.14028/j.cnki.1003-3726.2005.04.014
        摘要：This article regards a review on study and development on toughening systems of polypropylene ( PP) and ultrahigh molecular weight polyethylene ( UHMWPE) .The mechanical properties, morphology, thermal properties, and rheology were evaluated .Thus toughening and reinforcing mechanism were also conduced .  
        关键词：UHMWPE;PP;Toughening;Morphology;Mechanical properties   
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        发布时间：2022-09-18
      • Zu-ren PAN
        Vol. 18, Issue 4, Pages: 110-115,109(2005) DOI: 10.14028/j.cnki.1003-3726.2005.04.015
        摘要：Fundamental research works of polymer reaction engineering rooted from the key problems in PVC manufacture were carried out along with two main aspects concerning with polymer chemistry,technololy and engineering for more than forty years.Polymerization kinetics including rate,degree of polymerization and copolymer composition,microscopic and macroscopic particle formation mechanism,and heat transfer,agitation and mixing,and scale-up technique of reactor were studied in detail.The key problems for developing new types of PVC and related polymers,and for scale-up design of new reactors were easily solved based on the fundamental researches.  
        关键词：Poly (vinyl chloride);Polymerization kinetics;Particle formation mechanism;Heat transfer;Agitation and mixing;Scale-up of polymerization reactor   
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        发布时间：2022-09-18
      • Quan-xing ZHANG,Jin-long CHEN,Zhao-yi XU,Bing-cai PAN,AI-min LI,Wei-ming ZHANG,Yong-zhong HAN
        Vol. 18, Issue 4, Pages: 116-121(2005) DOI: 10.14028/j.cnki.1003-3726.2005.04.016
        摘要：In the present paper development of hyper-cross-linked resin adsorbent was summarized as well as its application in organic chemical wastewater treatment , including how to synthesize a hyper-cross-linked resin adsorbent , adsorption mechanism and its field application in chemical wastewater treatment such as from 2 , 3-acid or p-nitrophenol production process .  
        关键词：Adsorption;Resin adsorbent;Fine chemicals;Wastewater treatment   
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        发布时间：2022-09-18
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