CAJ | 학술논문

脱氢松香酸与环氧氯丙烷、三甲胺反应合成季铵盐中间体(Ⅰ),再与试剂浓硫酸经磺化合成了脱氢松香基两性表面活性剂(Ⅱ).通过红外光谱(FTIR)、含氮量和硫酸盐活性物质的分析对中间体及目标产物的结构进行了确认,并测定(Ⅱ)的表面活性.结果表明:在脱氢松香上引入了季铵盐和磺酸根,两性表面活性剂中间体得率为72.18%,终产物得率为35.8%,氮质量分数为1.17%,硫酸盐活性物质量分数为15.9%,脱氢松香基两性表面活性剂(Ⅲ)的临界胶束浓度为1.39mmol/L,表面张力降低到21.308mN·m~(-1),表明脱氢松香基两性表面活性剂具有一定的表面活性.
탈경송향산여배양록병완、삼갑알반응합성계안염중간체(Ⅰ),재여시제농류산경광화합성료탈경송향기량성표면활성제(Ⅱ).통과홍외광보(FTIR)、함담량화류산염활성물질적분석대중간체급목표산물적결구진행료학인,병측정(Ⅱ)적표면활성.결과표명:재탈경송향상인입료계안염화광산근,량성표면활성제중간체득솔위72.18%,종산물득솔위35.8%,담질량분수위1.17%,류산염활성물질량분수위15.9%,탈경송향기량성표면활성제(Ⅲ)적림계효속농도위1.39mmol/L,표면장력강저도21.308mN·m~(-1),표명탈경송향기량성표면활성제구유일정적표면활성.
Quaternary ammonium salt, a product from the reaction between dehydroabietic acid, epichlorohydrin, and trimethylamine, reacted with concentrated sulfuric acid to synthesize an amphoteric surfactant (Ⅱ) from dehydroabietic acid. The structures of intermediate and final products were characterized by FT-IR, nitrogen content, and sulfated active matter. The surface-active property of amphoteric surfactant(Ⅱ) was investigated by surface tension experiment. The introduction of quaternary ammonium salt and sulfonate into dehydroabietic acid can be identified. The yields of intermediate product and final product were 72.18% and 35.8%, and the contents of nitrogen and sulfated active matter were 1.17% and 15.9% respectively. the critical micelle concentration (CMC) of amphoteric surfactant (Ⅲ) was 1.39mmol/L and surface tension decreased to 21.308mN/m, indicating that the amphoteric surfactant (Ⅲ) from dehydroabietic acid possesses certain surface activity in aqueous solutions.