含全氟壬烯基丙烯酸酯单体合成及乳液聚合

Synthesis and Polymization of a Acrylate Containing Perfluorononenyl

摘要:

研究了含全氟壬烯基丙烯酸酯的合成及其聚合反应。以全氟壬烯氧基苯磺酰氯为原料，经酰胺化、酯化得到N-甲基-N- p-全氟壬烯氧基苯磺酰胺基乙基丙烯酸酯(III)；确定了III的较优合成工艺条件为：n(II):n(丙烯酰氯)=1:3，室温反应6h，含氟单体III的收率为 75.0 %；并将 III 与甲基丙烯酸甲酯（MMA）、丙烯酸丁酯（BA）在K2S2O8（KPS）存在下，通过半连续乳液聚合法，制备了带蓝色荧光含氟丙烯酸酯乳液。用傅立叶红外（FT-IR）、核磁共振（1H NMR）、质谱（ESI-MS）对含氟丙烯酸酯单体（III）和聚合物薄膜的结构进行表征；考察了乳液的稳定性， III 的含量对聚合物膜上水接触角的影响。当含氟丙烯酸酯占单体总质量20%时，水接触角为 88.2?。

Abstract:

Synthesis and polymization of acrylate containing perfluoronineyl were investigated. N-methyl-N-p-perfluorononenoxybenzenesulfamidethyl acrylate (III) was synthesized from p- perfluorononenyloxybenzenesulfonyl chloride by amidation and esterification. The optimum conditions of esterification was n(II):n(Acryloyl chloride)=1:3, react at room temperature for 6h, The yield of III was 75.0 %. The fluorinated copolymer emulsion with blue-fluorescence was synthesized by semicontinuous emulsion polymerization of III initiated by K2S2O8 with butyl acrylate (BA), methyl methacrylate (MMA). Acrylate (III) and copolymer film were characterized by FT-IR,1HNMR and ESI-MS respectively. The copolymers emulsion stability and content of III in copolymer on the water contact angle on the copolymer film were studied. When the film contains 20 % III in weight, the water contact angle on the film is 88.2?