Issue 48, 2017

Polyallene-based amphiphilic triblock copolymer via successive free radical polymerization and ATRP

Abstract

A new ABA amphiphilic triblock copolymer, comprising double-bond-containing poly(phenoxyallene) (PPOA) and poly(oligo(ethylene glycol) methyl ether methacrylate) (POEGMM) segments, was synthesized by a combination of conventional free radical polymerization, atom transfer radical polymerization (ATRP), and the site transformation strategy. A bifunctional initiator containing azo and Br-containing ATRP initiating groups was employed to initiate conventional free radical homopolymerization of phenoxyallene with a cumulated double bond to give a PPOA-based macroinitiator (Br-PPOA-Br) bearing ATRP initiating groups at both ends. Next, ATRP of OEGMM monomer was initiated by Br-PPOA-Br to provide the desired POEGMM-b-PPOA-b-POEGMM triblock copolymer. The critical micelle concentration of POEGMM-b-PPOA-b-POEGMM amphiphilic copolymer in aqueous solution was determined by fluorescence spectroscopy. The amphiphilic triblock copolymer could self-assemble into wormlike and spherical micelles in aqueous media. POEGMM-b-PPOA-b-POEGMM triblock copolymer can also be used as the stabilizer for the aqueous polymerization of styrene and methyl methacrylate.

Graphical abstract: Polyallene-based amphiphilic triblock copolymer via successive free radical polymerization and ATRP

Supplementary files

Article information

Article type
Paper
Submitted
20 Aug 2017
Accepted
27 Nov 2017
First published
27 Nov 2017

Polym. Chem., 2017,8, 7537-7545

Polyallene-based amphiphilic triblock copolymer via successive free radical polymerization and ATRP

A. Ding, G. Lu, H. Guo and X. Huang, Polym. Chem., 2017, 8, 7537 DOI: 10.1039/C7PY01407D

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