Unravelling the formation of BAB block copolymer assemblies during PISA in water

Pauline Biais; Olivier Colombani; Laurent Bouteiller; François Stoffelbach; Jutta Rieger

doi:10.1039/D0PY00422G

Unravelling the formation of BAB block copolymer assemblies during PISA in water†

Pauline Biais,^a Olivier Colombani,

*^b Laurent Bouteiller,

^a François Stoffelbach

^a and Jutta Rieger

*^a

Author affiliations

* Corresponding authors

^a Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, UMR 8232, Polymer Chemistry Team, 4 Place Jussieu, 75252 Paris Cedex 05, France
E-mail: jutta.rieger@sorbonne-universite.fr

^b Institut des Molécules et Matériaux du Mans (IMMM), UMR 6283 CNRS Le Mans Université, Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France
E-mail: olivier.colombani@univ-lemans.fr

Abstract

The mechanism of formation of associative BAB triblock copolymers through aqueous polymerization-induced self-assembly (PISA) is investigated for the first time, on copolymers constituted of a hydrophilic poly(N,N-dimethylacrylamide) block (PDMAc = block A) and a hydrophobic poly(diacetone acrylamide) block (PDAAm = block B). Such BAB copolymers tend to form bridged micelles/networks, which was expected to make the PISA process much more complex than for conventional diblock copolymers. Kinetic monitoring, light scattering analyses and macroscopic observations allowed identifying crucial parameters that influence the polymerization and the final dispersion properties, notably the stirring of the polymerization medium, the macroRAFT agent concentration, its ionization degree (related to the pH) and its Z group alkyl chain length.

This article is part of the themed collection: Polymerization-Induced Self-Assembly (PISA)

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Article information

DOI: https://doi.org/10.1039/D0PY00422G
Article type: Paper
Submitted: 23 Mar 2020
Accepted: 01 Jun 2020
First published: 05 Jun 2020

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Polym. Chem., 2020,11, 4568-4578

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Unravelling the formation of BAB block copolymer assemblies during PISA in water

P. Biais, O. Colombani, L. Bouteiller, F. Stoffelbach and J. Rieger, Polym. Chem., 2020, 11, 4568 DOI: 10.1039/D0PY00422G

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Polymer Chemistry

Unravelling the formation of BAB block copolymer assemblies during PISA in water†

Abstract

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Unravelling the formation of BAB block copolymer assemblies during PISA in water

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