Unimolecular Janus Micelles by Microenvironment-Induced, Internal Complexation

作者：Steinschulte Alexander A; Schulte Bjoern; Erberich Michael; Borisov Oleg V; Plamper Felix A^*

来源：ACS Macro Letters, 2012, 1(4): 504-507.

DOI：10.1021/mz300043s

A noncentrosymmetric, star-shaped polymeric system is presented, which forms unimolecular micelles upon complexation of poly(propylene oxide) (PPO) with poly(dimethylaminoethyl methacrylate) (PDMAEMA). The influence of macromolecular architecture on the hydrophobicity of PPO and its interaction with PDMAEMA is investigated. Within stars, a complex between PPO and PDMAEMA is formed, lowering the interfacial tension of the hydrophobic domain (PDMAEMA acts as a %26quot;microsurfactant%26quot; for PPO). This leads to a pronounced drop in aggregation number compared to similar diblock copolymers, as corroborated by a scaling approach.

• 出版日期2012-4