最新刊期
      卷 20 ， 期 8 ， 2007
      • Na CAO,Yu-hua FU,Jun-hui HE
        Vol. 20, Issue 8, Pages: 1-6(2007) DOI: 10.14028/j.cnki.1003-3726.2007.08.001
        摘要：Gelatin film has excellent biocompatibility and biodegradability. In addition, the properties of gelatin film could be adjusted according to the application, so gelatin film is applied in many fields. The influences of some additives and preparation on the mechanical, barrier, and biodegradability properties of gelatin film were reviewed in this paper. Commonly, plasticizer could overcome brittleness of gelatin film, decrease mechanical strength and thermal stabilization of gelatin film. Cross-linking could effectively improve mechanical strength and thermal stabilization of gelatin film, and decrease degradability of gelatin. There were chemical, physical and biocompatible cross-linking. Blend with proteins, polysaccharides, lipids could improve properties of gelatin film. The properties of gelatin film could be modified through combination or copolymerization with polymers, in order to meet the application of different fields.  
        关键词：Gelatin film;Biocompatibility;Biodegradability;Mechanical property;Barrier property   
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        发布时间：2022-09-18
      • Cheng-gong HUANG,fu-shen CHEN
        Vol. 20, Issue 8, Pages: 7-10(2007) DOI: 10.14028/j.cnki.1003-3726.2007.08.002
        摘要：With the development of optical communication, high speed electro-optic polymer modulators have been widely used and play an important role in optical communication. Polymer film is the basis for fabricating electro-optic polymer modulators. The fabricating methods of corona poled polymer film were introduced.  
        关键词：Polymer film;Electro-optic modulator;Nonlinear optics;Corona poling   
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        发布时间：2022-09-18
      • Zhi-yuan CHEN,Wei-bin BAI,Cai-mao ZHAN
        Vol. 20, Issue 8, Pages: 11-17(2007) DOI: 10.14028/j.cnki.1003-3726.2007.08.003
        摘要：Polyfluorenes are promising blue light emitting materials for their high efficiency and bright as emitting layer in polymeric light emitting devices (PLEDs). But blue-green or green light emitting with the maxima around530 ~550nm in PL and2.2~2.3eV in EL have been observed in the solid state film and PLED after an experimental run. The progress in recent years in the exploring mechanism of the low-energy gap emission, including the experimental evidences, theoretical calculations, and the methods to improve the blue light emitting stability, were reviewed in this article.  
        关键词：Low-energy Gap Emission;Polyfluorenes;Mechanism;Stability   
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        发布时间：2022-09-18
      • Chun-bao MA,Wen-xiong SHI,Ya WANG,Jing SHENG
        Vol. 20, Issue 8, Pages: 18-23(2007) DOI: 10.14028/j.cnki.1003-3726.2007.08.004
        摘要：Reactive blending is one of the fastest developed field in polymer material science, which assembles polymers with different performance by covalent bond or electrovalent bond to obtain new materials at reduced costs. In this paper, the alloying of the polymer/polymer and polymer/ polymerisable monomers blending systems is discussed, further, generalize the research advance in this field is also summarized.  
        关键词：Reactive processing;In-situ alloy;Reactive blending;Polymer blends   
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        发布时间：2022-09-18
      • Zhong-qian HU,X-i ping MA,Hong WANG,Jian DU
        Vol. 20, Issue 8, Pages: 24-28(2007) DOI: 10.14028/j.cnki.1003-3726.2007.08.005
        摘要：This paper reviews the formation, types, basic properties and applications of viscoelastic wormlike micelles. Viscoelastic wormlike micelles are important microstructures that relate to rhelogical properties of fluid in different applications. Recently, studies of structure and dynamic properties of wormlike micelle have extended to different surfactant type such as anionic, zwitterionic and polymeric surfactants. Applications have been found in oil fields, drag-reducing agents for district heating and cooling and thickeners for personal and home care products.  
        关键词：Viscoelastic surfactant;Wormlike micelles;Oil fields;Drag-reducing agents;Thickeners   
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        发布时间：2022-09-18
      • Qi ZHANG,Wei-cai WANG,lei ZHANG,Shuang-yan LI,Bing-bo ZHANG,Feng-ying YAN,Yu-guang ZHANG,Da-shui HE,Hao QU,Yi ZHANG,Jin CHANG
        Vol. 20, Issue 8, Pages: 29-33(2007) DOI: 10.14028/j.cnki.1003-3726.2007.08.006
        摘要：The highly monodisperse polystyrene (PS) microspheres were produced by dispersion polymerization using an initiator, 2, 2-azobis (isobutyronitrile) (AIBN) in alcoholic media, the diameter of PS beads was4.5m. The highly monodisperse PS beads were swellen by chloroform and 1-propanol and absorbed such fluoresceins as rhodamine and acridine orange (AO). The products emitted various colors, such as red, green, blue etc. , and the range of emission wavelength was between505and 610nm, which was measured by fluorescence microscope and spectrophotometer. Fourier Transform Infrared Spectroscopy (FTIR) analysis indicated that the fluoresceins were absorbed into the inner of the PS particles, and residual fluoresceins were not detected in the surface. Choosing the best groups of paralleled experiment data and using genetic algorithms (GA) method, the optimal swellen parameters, which were 10 (wt) percents of chloroform, 15mmol fluoresceins, 33percents of AO and swellen for 24h, were obtained after fifth generation.  
        关键词：Monodisperse Polymerization;Fluorescent Microsphere;Genetic Algorithms;Polystyrene   
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        发布时间：2022-09-18
      • Bing-qing CAO,Yong PAN,Jian-jun ZHAO,Qi-bin HUANG
        Vol. 20, Issue 8, Pages: 34-42(2007) DOI: 10.14028/j.cnki.1003-3726.2007.08.007
        摘要：Molecularly imprinted polymers have become one of the most attractive research fields. This review is a summary of the principal design considerations pertaining to good practice in the polymerisation aspects of molecular imprinting, and it aims at researchers to familiarize the preparation methods of molecular imprinting. The imprinted polymers are analyzed and summarized followed by the applications of imprinted polymers in the areas of sensors. Finally, the further research directions of imprinted membranes are briefly discussed.  
        关键词：Molecularly imprinted polymers;Preparation;Application;Sensor   
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        发布时间：2022-09-18
      • Li-rui ZHAO,Duo-xian SUN,Man-ying LIU
        Vol. 20, Issue 8, Pages: 43-47(2007) DOI: 10.14028/j.cnki.1003-3726.2007.08.008
        摘要：Carboxymethylchitosan is a kind of nature biomaterial with multi functional groups. It is widely used in food, cosmetic, enviroment protection, printing and dyeing, and agriculture. Becourse of its good performances and low cost it has great potential uses in biomedicine. In this paper we summarized the water solubility, membrane fomation, antimicrobial ability, degradability and biology properties of carboxymethylchitosan and the applications in biomedicine of carboxymethylchitosan including wound dressing, reduction of postoperative adhesions, drug delivery carrier were reviewd generally.  
        关键词：Carboxymethylchiosan;Chitosan;Biomedical materials   
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        发布时间：2022-09-18
      • Li-hua ZHANG,Ren-feng HU,Qing SHEN
        Vol. 20, Issue 8, Pages: 48-54(2007) DOI: 10.14028/j.cnki.1003-3726.2007.08.009
        摘要：The plant polyphenols also named as tannin is one kind the polyphenolic compounds with good biocompatibility and biodegradation ability. Because the polyhydric phenol structure is capable to cause it to take place the condensation reaction with the aldehyde, and utilize its hydrogen bond interact with other polymer groups, the application of the polyphenol in polymer is thus provided a possibility for later with different functions. Based on the literatures, this paper reviewed the application of the plant polyphenols in some polymer materials, e. g. PU, phenol resins, PHB, PCL, PLA and some other natural polymers, relating to the addition of functions on anti - bacteria, biodegradation and anti -oxidization.  
        关键词：Plant polyphenols;Polymer materials;Application   
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        发布时间：2022-09-18
      • Ping-ping ZHU,Ping-sheng HE,Hai-yang YANG
        Vol. 20, Issue 8, Pages: 55-59(2007) DOI: 10.14028/j.cnki.1003-3726.2007.08.010
        摘要：The method of teaching course "polymer physics" and realization based on teaching and research were introduced.  
        关键词：Polymer physics;Elaborate course;Lecture on special topic;Main teaching line   
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        发布时间：2022-09-18
      • Gui-rong PENG,Qing-song LI,Qing-shan LI,Zhen-lin ZHANG
        Vol. 20, Issue 8, Pages: 60-63(2007) DOI: 10.14028/j.cnki.1003-3726.2007.08.011
        摘要：Through teaching practice, experience is summarized. Concerning the multimedia teaching means, it is preferable mode for theory lesson with writing on blackboard mainly, multimedia assisted and writing united with multimedia closely.  
        关键词：Polymer physics;Teaching mode;Multimedia;Teaching   
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        发布时间：2022-09-18
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