最新刊期
      卷 17 ， 期 4 ， 2004
      • Shuang LIU,Wei-lin SUN,Bing-jing HE,Cai-ping LIN,Zhi-quan SHEN
        Vol. 17, Issue 4, Pages: 1-9(2004) DOI: 10.14028/j.cnki.1003-3726.2004.04.001
        摘要：Organic magnetic materials are new kinds of functional materials developed for more than two decades.Organic magnetic materials have great applied potential in some fields which require magnetic materials with low density,such as ultrahigh frequency equipments,high density memory materials,microwave-absorbing materials,micromation of electron products,space navigation,etc,because of their advantages of structural variety,easy preparation using chemical methods,compositive properties of magnetism with mechanism ,optical and electronical properties,low magnetic loss,etc.The development and the recent research of the organic magnets are introduced in this paper.  
        关键词：Organic magnetic materials;Magnetic polymer;Organometallic magnet;Charge-chansfer complexes   
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        发布时间：2022-09-18
      • Zheng-sheng FU,Chang-qing WANG,Hua-li XUE,Mao-dong LIU
        Vol. 17, Issue 4, Pages: 10-23(2004) DOI: 10.14028/j.cnki.1003-3726.2004.04.002
        摘要：Recent progress in synthesis and photochromism of polymer containing azobenzene side chain was reviewed in this paper.Several types of polymer system were introduced.Investigations of photochromism, nonlinear optical properties and optical anisotropic are associated with probable applications for optical data storage,nonlinear optical materials,liquid crytal polymer,photoelectric devices,photoregulation of bioactivity of biomolecule and nanometer technology.  
        关键词：Azobenzene;Polymer;Photochromism;Optical data storage materials   
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        发布时间：2022-09-18
      • Li HUANG,Yi-xian WU,Ying-xin QIU,Guan-ying WU
        Vol. 17, Issue 4, Pages: 24-38(2004) DOI: 10.14028/j.cnki.1003-3726.2004.04.003
        摘要：The progresses in the synthesis of amphiphilic copolymers with topology of linear,star and networks by living cationic polymerization (LCP) and by the combination of LCP with living anionic or free radical polymerization and the development of these amphiphilic copolymers as biomaterials were reviewed with 57 references.  
        关键词：Cationic polymerization;Amphiphilic copolymers;Amphiphilic networks;Vinyl ether;Isobutylene   
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        发布时间：2022-09-18
      • Xiang-feng CHEN,Guo-hua CHEN,Da-jun WU,Jin-rui XU
        Vol. 17, Issue 4, Pages: 39-47(2004) DOI: 10.14028/j.cnki.1003-3726.2004.04.004
        摘要：The paper summarizes the current situation about polymer/graphite nanocomposites.It introduces how to get the nanocomposites via diversity methods and the principles on their polymerization.The abilities of conduct electricity,the mechanical properties and the element effect on them are summed up.In addition ,the perspective of the nanocomposites is also surveyed.  
        关键词：Graphite;Expanded graphite(EG);Conductive nanocomposites;Intercalation   
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        发布时间：2022-09-18
      • Chun-fang LI,Dong-xiang LI,Sheng-yu FENG
        Vol. 17, Issue 4, Pages: 48-58(2004) DOI: 10.14028/j.cnki.1003-3726.2004.04.005
        摘要：Dendrimers are macromolecules with a regular and highly branched three-dimensional architecture. Silicon-based dendrimers are dendrimers with Si-atoms as branching point between two generations.In this paper,methods of synthesis of siloxane dendrimers,carbosilane dendrimers and silane dendrimers,and progress in silicon-based dendritic metal complexes were summarized.  
        关键词：Dendrimers;Metal Complexes;Catalysts   
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        发布时间：2022-09-18
      • Ai-jie ZHAO,Xu-bo YUAN,Jin CHANG
        Vol. 17, Issue 4, Pages: 59-63(2004) DOI: 10.14028/j.cnki.1003-3726.2004.04.006
        摘要：As one of the derivatives of chitosan,O-carboxylmethyl chitosan has a promising applicable perspective for its good water solubility.The objective of this review is to summarize the preparations,properties ,application and research advances of O-carboxylmethyl chitosan,especially in gene therapy and drug delivery systems.  
        关键词：O-carboxylmethyl chitosan;Properties;Application;Drug delivery system;Gene therapy   
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        发布时间：2022-09-18
      • Jin LI,Jing-ping LIU
        Vol. 17, Issue 4, Pages: 64-68(2004) DOI: 10.14028/j.cnki.1003-3726.2004.04.007
        摘要：Two complex---poly-aspartic iron (Ⅱ) and poly-aspartic mangan (Ⅱ) had been synthesized. The molecular composition and structure of these analogues of SOD were determined by IR spectrum and elemental analysis.The SOD like activity of both analogues of SOD and natural SOD were measured by the modification of NBT-illumination method in water solution.These compounds have good SOD-like activities, middle formula weight,water soluble,no toxin and good future of application.  
        关键词：Superoxide dismutase (SOD);Analogues of SOD;Polyaspartic iron (Ⅱ) complex;Polyaspartic mangan(Ⅱ) complex   
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        发布时间：2022-09-18
      • Yun-xia HU,Xu-bo YUAN,Chun-sheng KANG,Yi GUO,Jin CHANG
        Vol. 17, Issue 4, Pages: 69-73(2004) DOI: 10.14028/j.cnki.1003-3726.2004.04.008
        摘要：5-Fluorouracil (5-FU) and antisense-EGFR cDNA loaded nanoparticles were prepared by improved W/O/W method using poly (D,L-lactide-co-glycolic acid) (PLGA) and O-carboxymethyl chitosan (O-CMC) due to their attractive degradation and physicochemical properties,and this multiple-functional drug delivery system can realize the combination effect of anticancer drug and gene in the therapy of diseases.The results of characterizing these nanoparticles showed that:the mean size,polydispersity and Zeta potenial of 5- FU-encapsulated PLGA/O-CMC NPs while absorbing antisense-EGFR was 258.7nm,0.142, and -10.67eV,respectively.The release behavior of 5-FU and gene from NPs was coincidence with Zero-level release. Gliomas cell viability in vitro as well as immunohistochemical staining demonstrated that these nanoparticles had high cytotoxicity on gliomas cells TJ905.Fluorescence confocal microscope was used to trace the procedures of cell transfection induced by nanoparticles.It was found that nanoparticles were both in cytoplasma and nucleus after 24h.  
        关键词：O-CMC;PLGA;Nanoparticles;Anti-cancer drugs;Gene therapy;Sustained release   
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        发布时间：2022-09-18
      • Chang-fa XIAO
        Vol. 17, Issue 4, Pages: 74-88(2004) DOI: 10.14028/j.cnki.1003-3726.2004.04.009
        摘要：Ultra-high molecular weight polyethylene fiber is an important high-performance fiber.In the paper,the principle of manufacture technique,structure and properties as well as the application of the fibers are presented.  
        关键词：Ultra-high molecular weight polyethylene fiber;Manufacture technique;Structure and properties;Application   
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        发布时间：2022-09-18
      • Zhen-hui ZENG,Sheng-xiong DONG,Qi GONG
        Vol. 17, Issue 4, Pages: 89-95(2004) DOI: 10.14028/j.cnki.1003-3726.2004.04.010
        摘要：In this paper,the classification and characteristics of environmentally sensitive polymer membranes(ESPM) are introduced.And the recent progress of preparation methods of ESPM is reviewed.Meanwhile the application status and the future hot points in the research and development of ESPM are also described.  
        关键词：Environmentally sensitive;Polymer membrane;Preparation;Application;Progress   
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        发布时间：2022-09-18
      • Ai-gui LI,Lian-dong DENG,An-jie DONG
        Vol. 17, Issue 4, Pages: 96-101(2004) DOI: 10.14028/j.cnki.1003-3726.2004.04.011
        摘要：Polyethylene glycol (PEG) has good biocompatibility and amphiphilic properties,which plays an important role in biomedicine.This review introduces the applications of PEG in new drug preparations,including the nanoparticle drug delivery system,the modification of protein drugs and the PEG prodrugs of hydrophobic drugs.  
        关键词：Polyethylene glycol;The nanoparticle drug delivery system;Modification;Protein drugs;Prodrugs   
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        发布时间：2022-09-18
      • Xia LI,Yu-dong HUANG,Ling-yan JIAO
        Vol. 17, Issue 4, Pages: 102-107(2004) DOI: 10.14028/j.cnki.1003-3726.2004.04.012
        摘要：Poly(p-phenylene-2,6-benzoxazole)(PBO) is rigid-rod polymers with excellent thermal stability and solvent resistance.Fibers prepared from PBO have remarkable tensile strength and modulus.The synthesis of method PBO fiber are introduced and microstructures and determination methods are reviewed in detail.  
        关键词：PBO fiber;Synthesis;Microstructure;Characterization   
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        发布时间：2022-09-18
      • Xiao-min CHENG,Chu-li SHI,Jing ZHANG
        Vol. 17, Issue 4, Pages: 108-110(2004) DOI: 10.14028/j.cnki.1003-3726.2004.04.013
        摘要：In view of the problems existing in the course of traditional experiment teaching,the author develops the multiple-media courseware for experiment course of college polymer physics by using the multi-media and emulation technology.This paper introduced the design thinking,implementation method and characteristics of the software.Also,the author discussed the concrete applications of the software and the problem that should be paid attention to in the experiment teaching.  
        关键词：Experiments of polymer physics;Multiple-media;Courseware   
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        发布时间：2022-09-18
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