Issue 4, 2021

Synthesis of ABA triblock copolymer nanoparticles by polymerization induced self-assembly and their application as an efficient emulsifier

Abstract

ABA triblock copolymer nanoparticles of poly(2-hydroxypropyl methacrylate)-block-polystyrene-block-poly(2-hydroxypropyl methacrylate) (PHPMA-b-PS-b-PHPMA) with a hydrophobic core of the polystyrene (PS) block and a hydrophilic corona of the poly(2-hydroxypropyl methacrylate) (PHPMA) block were synthesized by dispersion RAFT polymerization. It is found that the particle diameter of the PHPMA-b-PS-b-PHPMA nanoparticles increases with the chain extension of the PS block and decreases with the increasing degree of polymerization (DP) of the PHPMA block. In comparison with the poly(2-hydroxypropyl methacrylate)-block-polystyrene (PHPMA-b-PS) diblock copolymer nanoparticles with a similar chemical composition, the PHPMA-b-PS-b-PHPMA nanoparticles have a larger diameter, and the chain density of the PHPMA chains tethered to the PS core is higher. It is found that the PHPMA-b-PS-b-PHPMA nanoparticles can decrease the n-hexane/water interfacial tension more than the PHPMA-b-PS nanoparticles and may act as an efficient emulsifier.

Graphical abstract: Synthesis of ABA triblock copolymer nanoparticles by polymerization induced self-assembly and their application as an efficient emulsifier

Supplementary files

Article information

Article type
Paper
Submitted
25 Oct 2020
Accepted
13 Dec 2020
First published
14 Dec 2020

Polym. Chem., 2021,12, 572-580

Synthesis of ABA triblock copolymer nanoparticles by polymerization induced self-assembly and their application as an efficient emulsifier

Y. Guo, Y. Yu, K. Shi and W. Zhang, Polym. Chem., 2021, 12, 572 DOI: 10.1039/D0PY01498B

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