| 水分散体系中甲基丙烯酸甲酯和丙烯酸八氟戊酯嵌段共聚物的合成与表征 |
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| 引用本文： | 张彬,张兆斌,万小龙,胡春圃,应圣康.水分散体系中甲基丙烯酸甲酯和丙烯酸八氟戊酯嵌段共聚物的合成与表征[J].高分子学报,2003(6):906-909. |
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| 作者姓名： | 张彬 张兆斌 万小龙 胡春圃 应圣康 |
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| 作者单位： | 华东理工大学活性聚合研究室,上海,200237 |
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| 基金项目： | 上海市重点学科建设资助项目 |
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| 摘 要： | 在聚合物链上引入氟元素可以赋予聚合物很多优异的性能 ,如良好的热稳定性、化学稳定性、生物相容性和憎水憎油性等 .含氟单体与一般单体共聚是合成含氟共聚物的重要途径 .通过原子转移自由基聚合 (ATRP)不仅可以实现多种单体的控制 (共 )聚合 ,而且可以合成出具有预定分子量、窄分子量分布以及结构明晰聚合物1] ,我们曾报道了溶液体系中用ATRP方法合成含氟嵌段共聚物2～ 4] .众所周知 ,大多数含氟聚合物都是通过乳液或悬浮聚合反应合成的 .然而 ,普通的乳液或悬浮聚合难以合成结构和组成可控的聚合物 ,如嵌段共聚物 ,所以近年来 ,水…
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| 关 键 词： | 原子转移自由基聚合 水分散体系 甲基丙烯酸甲酯 丙烯酸八氟戊酯 含氟嵌段共聚物 |
| 修稿时间： | 2003年3月24日 |
SYNTHESIS AND CHARACTERIZATION OF FLUORINE-CONTAINING BLOCK COPOLYMER COMPOSED OF MMA AND OFPA IN WATER DISPERSION SYSTEM |
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| ZHANG Bin,ZHANG Zhaobin,WAN Xiaolong,HU Chunpu,YING Shengkang.SYNTHESIS AND CHARACTERIZATION OF FLUORINE-CONTAINING BLOCK COPOLYMER COMPOSED OF MMA AND OFPA IN WATER DISPERSION SYSTEM[J].Acta Polymerica Sinica,2003(6):906-909. |
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| Authors: | ZHANG Bin ZHANG Zhaobin WAN Xiaolong HU Chunpu YING Shengkang |
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| Abstract: | Block copolymerization of methyl methacrylate(MMA)ms and 2,2,3,3,4,4,5,5-octafluoropentyl acrylate(OFPA) was conducted at 25℃ in water dispersion system catalyzed and initiated by CuBr/CuBr 2/1,10-phenanthroline(phen)/ethyl 2-bromoisobutyrate(EBiB) or CuCl/phen/EBiB in the presence of sodium lauryl sulfonate and sodium perfluorononenyloxyl benzene sulfonate.The results of GPC and 1H-NMR characterization demonstrated that a fluorine-containing block copolymer composed of MMA and OFPA was successfully synthesized in such a water dispersion system.The water-resistance performance of the PMMA film surface was greatly improved when only 2?wt%(based on PMMA) of the resulted fluorine-containing block copolymer was employed as the film surface enhance agent. |
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| Keywords: | Atom transfer radical polymerization Water dispersion system Methyl methacrylate 2 2 3 3 4 4 5 5-Octafluoropentyl acrylate Fluorine-containing block copolymer |
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