Pal Asish, Voudouris Panayiotis, Koenigs Marcel M E, Besenius Pol, Wyss Hans M, Degirmenci Volkan, Sijbesma Rint P
Soft Matter. 2014 Feb 21;10(7):952-6. doi: 10.1039/c3sm52605d.
Rod-like micelles, formed from bolaamphiphiles with oligo(ethylene oxide) hydrophilic outer segments and a hydrophobic segment with diacetylene flanked by two urea moieties, were covalently fixated by topochemical photopolymerization to high degrees of polymerization by optimizing the hydrophobic core and the hydrophilic periphery of the bolaamphiphiles. Analysis of the polymerized product with dynamic light scattering in chloroform showed degrees of polymerization of approximately 250. Cryo-TEMof bolaamphiphiles before and after UV irradiation showed that the morphology of the rods was conserved upon topochemical polymerization.
由具有聚环氧乙烷亲水性外部链段和带有两个尿素基团侧翼的二乙炔疏水链段的双性离子两亲物形成的棒状胶束，通过优化双性离子两亲物的疏水核心和亲水周边，通过拓扑化学光聚合共价固定至高聚合度。在氯仿中用动态光散射对聚合产物进行分析，结果显示聚合度约为250。紫外辐照前后双性离子两亲物的冷冻透射电子显微镜显示，在拓扑化学聚合后棒的形态得以保留。
