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	合成橡胶工业 CHINA SYNTHETIC RUBBER INDUSTRY 2010 Vol.33 No.1 P.24-28

用电子转移活化再生原子转移自由基聚合制备含氟丙烯酸酯共聚物及其表征

张立武　熊邦虎　冯新泸　李冲　何家洪　

摘　要：在水分散介质中,以非离子乳化剂Tween-80和十二烷基磺酸钠作为复合乳化剂,通过电子转移活化再生原子转移自由基聚合,采用"ab二次引发"乳液聚合法制备了含氟丙烯酸酯三元共聚物,用傅里叶变换红外光谱、拉曼光谱、核磁共振波谱及凝胶渗透色谱等对其结构、组成和相对分子质量及其分布进行了表征.结果表明,含氟丙烯酸酯聚合物的分子结构及组成可控,转化率高达95%,相对分子质量分布较窄.优选憎水性配体和惰性乳化剂可提高反应的可控性.
关键词：含氟丙烯酸酯共聚物;原子转移自由基聚合;乳液聚合;表征
分类号：TQ333.97 　文献标识码：A
文章编号：1000-1255(2010)01-0024-05

Preparation and characterization of acrylic fluoropolymers via atom transfer radical polymerization with activators regenerated by electron transfer

Zhang Liwu（Department of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China）　 Xiong Banghu（Department of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China）　 Feng Xinlu（Department of Oil Application and Management Engineering, Logistical Engineering College, Chongqing 400016, China）　 Li Chong（Department of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China）　 He Jiahong（Department of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China）　

Abstract：Atom transfer radical polymerization with activators regenerated by electron transfer initiating/catalytic system (ARGET-ATRP) of acrylic trifluoropolymers was carried out by an ab initio emulsion method in aqueous dispersion systems. Nonionic surfactant Tween-80 and sodium dodecyl sulfonate were used as synergistic emulsifying agents. The well-defined products were characterized by Fourier transform-infrared spectroscopy, Raman spectroscopy, nuclear magnetic resonance spectroscopy and gel permeation chromatography. The results showed that the molecular structure and composition of the terpolymers with monomer conversition of 95% and narrow relative molecular mass distribution could be well controlled. Additionally, the catalyst ligand well in hydrophobicity and the inert surfactant were much advantageous to the reaction controllability.
Keywords：acrylic fluoropolymer; atom transfer radical polymerization; emulsion polymerization; characterization

作者简介：张立武(1965-),男,副教授.
作者单位：张立武（重庆大学,化学化工学院,重庆,400044）　
　　　　　熊邦虎（重庆大学,化学化工学院,重庆,400044）　
　　　　　冯新泸（解放军后勤工程学院,军事油料应用工程系,重庆,400016）　
　　　　　李冲（重庆大学,化学化工学院,重庆,400044）　
　　　　　何家洪（重庆大学,化学化工学院,重庆,400044）　

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收稿日期：2008年10月29日

修稿日期：2009年11月7日

出版日期：2010年1月15日