热致晶体
溶致性
十二烷
材料科学
化学工程
两亲性
壬烷
微乳液
季戊四醇
分子
胶束
化学
高分子化学
聚合物
有机化学
肺表面活性物质
液晶
共聚物
水溶液
阻燃剂
工程类
作者
Liliana de Campo,Minoo J. Moghaddam,Trond Varslot,Nigel Kirby,Rainer Mittelbach,Tim Sawkins,Stephen T. Hyde
摘要
We report synthesis, thermotropic, and lyotropic mesomorphism of a family of novel "star-polyphiles": small star-shaped molecules bearing three mutually immiscible arms, hydrophilic (oligoethylene glycol), oleophilic (alkanes), and fluorophilic (perfluorinated alkanes), attached to a central 1,3,5-trihydroxybenzene core. A facile, flexible multistep synthesis giving high-purity yields of 14 distinct members of the family is described, with variable arm lengths, forming crystalline, or various mesostructured gel phases in their neat state at room temperature. Furthermore, we show that specific members of these star-polyphiles can be simultaneously loaded with up to three mutually immiscible solvents, dodecane, perfluoro-nonane, and water, to form liquid crystals and microemulsions with multiple chemically distinct mesoscale compartments. The mesoscale chemical polyfunctionality of these polyphiles, coupled with thermotropic and lyotropic polymorphism, make them promising potential soft materials for a variety of applications, including host matrices for multiple mutually immiscible chemicals and drug delivery.
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