聚丙烯酸甲酯-丝胶双亲纳米微球的合成及其应用  

Synthesis of Amphiphilic Poly(methyl acrylate)-Silk Sericin Nanospheres and Their Application

作　　者：宋艳[1] 魏德卿[2] 金勇[2] 孙静[2] 

机构地区：[1]江苏工业学院材料科学与工程系,江苏常州213164 [2]中国科学院成都有机化学研究所,四川成都610041

出　　处：《合成化学》2007年第6期725-727,共3页Chinese Journal of Synthetic Chemistry

摘　　要：以叔丁基过氧化氢(TBHP)为引发剂,通过丝胶(SS)与丙烯酸甲酯(MA)的接枝共聚反应制得了以PMA接枝链为核,SS为壳的双亲纳米微球(PMA-SS),其结构经IR,透射电镜和激光衍射粒度分析仪表征。结果表明:MA成功地接枝到SS大分子链上;PMA-SS具有明显的核-壳结构,粒径110nm～130nm,粒径分布相对较窄。初步探讨了PMA-SS对三价铬离子(Cr3+)的吸附性能。Amphiphilic poly（ methyl acrylate）-silk sericin nanospheres（PMA-SS） were obtained via situ self-assembly process during the graft copolymerization of methyl acrylate（MA） from hydrophilic silk seicin （SS） chains initiated by a special kind of initiator——tert-butyl hydroperoxide （TBHP）. The graft copolymerization was confirmed by IR, and PMA-SS nanospheres were characterized by transmission electron microscopy and particle size analyzer. The results showed that MA was successfully grafted from the SS backbone, and the amphiphilic PMA-SS nanospheres showed a definite core-shell structure, where the PMA cores were coated with SS shells. Additionally, PMA-SS nanospheres ranged from 110 nm - 140 nm in diameter with the average size of 115 nm. Furthermore, elementary investigations had been done on the adsorption property of PMA-SS nanospheres for trivalent chromium ions from aqueous solution, and so that PMA-SS nanospheres can be applied in the treatment of wastewater containing heavy metal ions.

关 键 词：叔丁基过氧化氢 丝胶 聚甲基丙烯酸甲酯 核-壳结构 三价铬离子 吸附 应用 

分 类 号：O633[理学—高分子化学]