新型咪唑盐三硅氧烷表面活性剂的合成及表面活性  

Synthesis of Novel Imidazolium Based TrisiloxaneSurfactants and its Surface Activity

作　　者：曾浩 包麒钰 陈浩[1] 肖梅红 钟本旺 谭景林[1] ZENG Hao;BAO Qiyu;CHEN Hao;XIAO Meihong;ZHONG Benwang;TAN Jinglin(School of Chemical and Environmental Engineering,Jiujiang University,Jiujiang 332005,Jiangxi;University Hospital,Jiujiang University,Jiujiang 332005,Jiangxi;Mingyang Smart Energy Group Ltd.,Zhongshan 528437,Guangdong)

机构地区：[1]九江学院化学化工学院,江西九江332005 [2]九江学院校医院,江西九江332005 [3]明阳智慧能源集团股份公司,广东中山528437

出　　处：《有机硅材料》2022年第2期1-4,共4页Silicone Material

基　　金：国家自然科学基金(21563016);江西省自然科学基金(20202BABL203011)。

摘　　要：以3-巯丙基-1,1,1,3,5,5,5-七甲基三硅氧烷与1-烯烃基-3-甲基咪唑溴盐为原料,通过巯基-烯烃点击反应高效合成含有不同联接基团(-CH_(2)-)的咪唑盐阳离子三硅氧烷表面活性剂([Si_(3)-C_(n)-Min]Br)。通过表面张力探索-CH_(2)-链节数量对其表面活性的影响。发现其最低表面张力为27~29 mN/m,最低表面张力和饱和吸附量随着-CH_(2)-数量的增加而增大,而临界胶束浓度和单分子在界面上所占面积则随之减小。A cationic trisiloxane surfactant[Si_(3)-C_(n)-Min]Br with different spacer(-CH_(2)-)has been synthesized from mercaptopropyl-trisiloxane and 1-alkenyl-3-methyl imidazolium bromide via thiol-ene click reaction.The numbers of-CH_(2)-on its surface activity by surface tension.It is indicated that the[Si_(3)-C_(n)-Min]Br has excellent surface activity and can reduce the surface tension of water to 27-29 mN/m.With the increase of-CH_(2)-length,the values of γ_(CMC) and Г_(max) increases,while the values of CMC and A_(min) decreases accordingly.

关 键 词：三硅氧烷 咪唑盐 表面活性 

分 类 号：TQ423[化学工程] TQ264.14