摘要
以α-长链烷基吡啶和烯丙基氯为原料合成了吡啶盐型阳离子表面活性剂———N-烯丙基-2-烷基氯化吡啶嗡盐(GS-n),研究了其表面性能,结果表明,GS具有较好的表面活性,其中N-烯丙基-2-十六烷基氯化吡啶嗡盐(GS-16)具有最低的临界胶团浓度(CMC,0.527 mmol.L-1);随着α-烷基链的增长,GS的CMC显著降低,表面张力(γcm c)则先降后升;GS-12的γcm c为27.1 mN.m-1。
A series of cationic surfactants, N-allyl-2-alkyl pyridinium chlorides （GS-n）, were prepared from long-chain alkyl pyridine and allyl chloride, and their surface activity were evaluated a- dopting surface tension method. The results showed that GS-n exhibited capability in reducing the surface tension of water; the lowest CMC（ concentration of criticle lump scrap） of the N-allyl-2-cetyl pyridinium chloride （GS-16） was 0. 527 mmol·L^-1; their CMC were lower obviously with the lengthening of alkyl chain; γcmc values were decreased firstly and then increased; the lowest γcmc value of GS-12 was 27.1 mN·m^-1
出处
《合成化学》
CAS
CSCD
2006年第6期568-570,共3页
Chinese Journal of Synthetic Chemistry
基金
四川省科技厅资助项目(03JYO29-021-1)
西华师范大学资助项目(05B030)
关键词
烷基吡啶盐
表面活性剂
表面活性
alkyl pyridinium
surface active agent
surface activity
