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Preparation and Structural Characterization of Hydroxylethyl Methacrylate Grafted Natural Rubber Latex

文献类型： 外文期刊

作者： Wei, Feiyun 1 ; Yu, Heping 1 ; Zeng, Zongqiang 1 ; Liu, Hongchao 1 ; Wang, Qifang 1 ; Wang, Jianlong 2 ; Li, Sidong 3 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Agr Prod Proc Res Inst, Key Lab Trop Crop Prod Proc, Agr Minist, Zhanjiang 524001, Guangdong, Peoples R China

2.North Univ China, Sch Chem Engn & Environm, Taiyuan, Shanxi, Peoples R China

3.Guangdong Ocean Univ, Fac Sci, Zhanjiang, Peoples R China

关键词： Natural rubber latex;graft copolymerization;2-hydroxyethyl methacrylate;redox initiator system;hydrophilicity and blood compatibility

期刊名称：POLIMEROS-CIENCIA E TECNOLOGIA （ 影响因子：1.492； 五年影响因子：1.886 ）

ISSN： 0104-1428

年卷期： 2014 年 24 卷 3 期

页码：

收录情况： SCI

摘要： The graft copolymer with semi-interpenetrating polymer networks (semi-IPNs) from 2-hydroxyethyl methacrylate (HEMA) and natural rubber (NR) latex was prepared using cumene hydroperoxide and tetraethylene pentamine redox initiator system. The changes of grafting ratios and grafting efficiency with the reaction time and temperature, the concentration of crosslinking agent, initiator and monomer were investigated. The appropriate amounts of crosslinking agent (0.1phr), initiator (0.2phr) and monomer (20phr) and the optimum reaction conditions of 16 degrees Cx8h were determined. The swelling temperature and times of monomers against NR latex particles were found to be significant for the grafting copolymerization and the appropriate swelling conditions were 16 degrees Cx20h. The water contact angle measurement and platelet adhesion evaluation indicated that the hydrophilicity and blood compatibility of NR latex could be improved by grafting copolymerization with HEMA.

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