苯乙烯/丁二烯嵌段共聚物的氟烷基化改性  

Modification of SBS Polymers by Per(poly)fluoroalkylation

作　　者：周志彬[1] 贺海鹰[1] 翁中原 赵成学[1] 曲延玲[1] 

机构地区：[1]华中理工大学化学系,武汉430074

出　　处：《应用化学》2000年第5期516-519,共4页Chinese Journal of Applied Chemistry

摘　　要：在室温反应条件下 ,利用全 (多 )氟酰基过氧化物 ( Rf CO2 ) 2 ( Rf=H( CF2 ) 4,n- C3F7,n- C7F15)与苯乙烯 /丁二烯嵌段共聚物 ( SBS)的单电子转移 ( SET)反应 ,得到了相应的氟烷基 ( Rf)化接枝高分子 Rf- SBS,IR及 19F NMR光谱表明 ,Rf—及 Rf COO—加成在 SBS中丁二烯单元双键的两端 .所得的 Rf— SBS具有较好的疏水疏油性和较低的折光率 .Poly(styrene-butadiene-styrene)(SBS) were modified by reacting with (R_fCO_2)_2 in CH_2Cl_2 at room temperature to give R_f-SBS polymers. All the fluoroalkylated products were characterized by IR and ~19F NMR spectra. It is shown that R_f and R_fCO_2 groups were only added onto the double bonds of SBS polymer chain via single electron transfer(SET) mechanism. The R_f-SBS polymers showed good water- and oil- repellency and low refractive indices.

关 键 词：苯乙烯 丁二烯 嵌段共聚物 氟烷基化 改性 FAP 

分 类 号：O632.1[理学—高分子化学]