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个人信息Personal Information
教授
博士生导师
硕士生导师
性别：男
毕业院校：中国科学院长春应用化学研究所
学位：博士
所在单位：化工学院
学科：高分子材料. 高分子化学与物理
办公地点：西部校区化工实验楼A座206
联系方式：0411-84986096,13591156428
电子邮箱：zgwang@dlut.edu.cn
Copolymer Networks from Carboxyl-Containing Polyaryletherketone and Diglycidyl Ether of Bisphenol-A: Preparation and Properties
点击次数：
论文类型：期刊论文
发表时间：2010-12-01
发表刊物：JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
收录刊物：SCIE、EI、Scopus
卷号：48
期号：23
页面范围：2424-2431
ISSN号：0887-6266
关键字：copolymerization; epoxy resin; interfaces; polyaryletherketone; poly(ether ketones); toughening
摘要：This article presents a new type of epoxy-toughening system, in which high-T(g) polyaryletherketone (PEK-L) containing one carboxyl group per repeating unit was utilized to randomly copolymerize with epoxy resin (DGEBA) to form crosslinking network. Compared to the neat epoxy resin, the PEK-L/DGEBA copolymers showed simultaneous enhancement in flexural strains at break by 282%, G(IC) value by 193%, and flexural strength by 14%. The reason was attributed to the uniform three-dimensional copolymer network interweaved by PEK-L and DGEBA segments through strong covalent bonds. The copolymerization process were monitored and examined by FTIR spectra. The effect of copolymer composition on the thermal and mechanical properties as well as toughening mechanism were also investigated and discussed in detail. VC 2010 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 48: 2424-2431, 2010