含联苯介晶基团和长间隔基的双头双亲分子的合成及界面胶束形态

A bolaform amphiphile(BP-15) bearing biphenyl group and long spacers of alkyl chains was synthesized. In-situ AFM studies indicate that the amphiphile can form two kinds of surface aggregates with different morphologies depending on solution concentration: short-range ordered cylindrical surface micelles at the lower concentration and flat domains at the higher concentration. These results agree well with the two critical micelle concentrations in bulk solution as determined by the concentration-dependent conductivity.

三种不同类型的分子对正十六酸对硝基苯酚酯簇集体的解簇研究

考察了三种不同类型的分子对正十六酸对硝基苯酚酯(C16)簇集体的解簇作用。结果表明:双头基型双亲分子((CH3)3N+(CH2)11COO-,DeAgr12)可与C16簇集体发生共簇集作用;中性醇类和醚类表面活性剂(CH3CH2OCH2CH2OH,CH3CH2OCH2CH2OCH2CH2OCH2CH3,CH3CH2OCH2CH2OCH2CH2OH,PEG400,HOCH2CH2OCH2CH2OCH2CH2OCH2CH2OH)由于较强的亲水效应而对C16簇集体没有解簇作用;阴离子表面活性剂(十二烷基磺酸钠,SDS)对C16簇集体有解簇作用。这一结果有助于寻找可以治疗脂肪肝的高效药物。