【作者】 李钦堂； 王旭东； 陈晓；

【Author】 Qin-Tang Li;Xu-Dong Wang;Xiao Chen;Key laboratory of colloid and interface chemistry,Shandong University;

【机构】 山东大学胶体与界面化学教育部重点实验室；

【摘要】 短链烷基铵硝酸盐离子液体(AANs)由于存在质子受体和给体这一特性,可形成类似水中的三维氢键网络结构,具有较大的内聚能,有利于促进有序分子聚集体的形成。我们选择三种链长AAN--硝酸乙基铵(EAN)、硝酸丙基铵(PAN)和硝酸丁基铵(BAN)作溶剂,比较研究了单链阳离子型长链烷基咪唑(C16mim Cl)与季铵盐型Gemini型表面活性剂(12-2-12)的有序聚集行为;通过表面张力、偏光显微镜、小角X-射线散射等测试手段考察了两亲分子和溶剂结构对形成的胶束与溶致液晶等聚集体相变的影响。更多还原

【Abstract】 Similar to water,the protic ionic liquids by alkylammonium nitrates(AANs) with short chains are characteristic with proton donators and acceptors and can form three-dimensional hydrogen-bonding networks.The high cohesion energy existed in the bulk makes them useful as solvents to enhance the organized aggregate formation.Here,we have chosen three AANs,ethylammonium nitrate(EAN),propylammonium nitrate(PAN) and butylammonium nitrate(BAN) as solvents to compare the aggregation behavior changes of a cationic long alkyl imidizolium chloride(C16mim Cl) and a quaternary ammonium type Gemini molecule(12-2-12).Through the measurement of surface tension,and the observations by polarized opticalmicroscopy and small angle X-ray scattering,the effects of amphiphile or solvent structures on aggregate phase transitions,especially the lyotropic liquid crystals(LLCs) have been characterized.更多还原