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Poly(ethylene glycol)-b-poly(vinyl acetate) block copolymer particles with various morphologies via RAFT/MADIX aqueous emulsion PISA

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Abstract

The polymerization-induced self-assembly (PISA) of amphiphilic diblock copolymers of poly(ethylene glycol)-b-poly(vinyl acetate) (PEG-b-PVAc) in water was achieved through macromolecular design via interchange of xanthate (MADIX) polymerization in emulsion. Poly(ethylene glycol) with a dithiocarbonate (xanthate) end-group (PEG-X) was synthesized by post-modification of commercial poly(ethylene glycol). The chain extension of PEG-X was then conducted in water using vinyl acetate (VAc) to produce PEG-b-PVAc amphiphilic diblock copolymers. Their in situ self-assembly led to stable latex particles. The molar mass of the PVAc block was varied to trigger the formation of various morphologies including spheres, vesicles and large compound vesicles.

Graphical abstract: Poly(ethylene glycol)-b-poly(vinyl acetate) block copolymer particles with various morphologies via RAFT/MADIX aqueous emulsion PISA

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Supplementary files

Article information


Submitted
30 Mar 2020
Accepted
21 May 2020
First published
22 May 2020

This article is Open Access

Polym. Chem., 2020, Advance Article
Article type
Paper

Poly(ethylene glycol)-b-poly(vinyl acetate) block copolymer particles with various morphologies via RAFT/MADIX aqueous emulsion PISA

P. Galanopoulo, P. Dugas, M. Lansalot and F. D'Agosto, Polym. Chem., 2020, Advance Article , DOI: 10.1039/D0PY00467G

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