Hils Christian, Schmelz Joachim, Drechsler Markus, Schmalz Holger
Macromolecular Chemistry II, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany.
Keylab Electron and Optical Microscopy, Bavarian Polymer Institute, Universitätsstraße 30, 95447 Bayreuth, Germany.
J Am Chem Soc. 2021 Sep 29;143(38):15582-15586. doi: 10.1021/jacs.1c08076. Epub 2021 Sep 16.
Surface-compartmentalized micellar nanostructures (Janus and patchy micelles) have gained increasing interest due to their unique properties opening highly relevant applications, e.g., as efficient particulate surfactants, compatibilizers in polymer blends, or templates for catalytically active nanoparticles. We present a facile method for the production of worm-like Janus micelles based on crystallization-driven self-assembly of a double-crystalline triblock terpolymer with a crystallizable polyethylene middle block and two highly incompatible corona blocks, polystyrene and poly(ethylene oxide). This approach enables the production of amphiphilic Janus micelles with excellent interfacial activity by a comparably simple heating and cooling protocol directly in solution.
表面分区的胶束纳米结构（Janus胶束和补丁状胶束）因其独特性质开启了高度相关的应用（例如作为高效颗粒表面活性剂、聚合物共混物中的增容剂或催化活性纳米颗粒的模板）而受到越来越多的关注。我们提出了一种简便的方法来制备蠕虫状Janus胶束，该方法基于一种双晶三嵌段三元共聚物的结晶驱动自组装，该共聚物具有可结晶的聚乙烯中间嵌段以及两个高度不相容的冠链嵌段，即聚苯乙烯和聚环氧乙烷。这种方法能够通过在溶液中直接进行相对简单的加热和冷却程序来制备具有优异界面活性的两亲性Janus胶束。
