Surfactant-free RAFT emulsion polymerization using a novel biocompatible thermoresponsive polymer

Abstract

Thermoresponsive polymers have recently attracted considerable interest as macromolecular chain transfer agents in RAFT emulsion polymerizations to prepare nanoparticles with tuneable cores, sizes, shapes or surfaces. So far, this synthesis technique requires the use of a conventional surfactant as a stabilizer (e.g., sodium dodecyl sulphate), thus limiting its scope and potential applications. Here, we report the surfactant-free RAFT emulsion polymerization using, for the first time, a biocompatible thermoresponsive polymer as a dual macromolecular chain transfer agent and a macromolecular stabilizer. By randomly incorporating a hydrophilic component with ∼21 ethylene glycol units on the si..