Mechano-responsive polymer solutions based on CO2 supersaturation: shaking-induced phase transitions and self-assembly or dissociation of polymeric nanoparticles

Peter J. Roth; Jing Yang Quek; Yicheng Zhu; Bianca M. Blunden; Andrew B. Lowe

doi:10.1039/C4CC04139A

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Mechano-responsive polymer solutions based on CO₂ supersaturation: shaking-induced phase transitions and self-assembly or dissociation of polymeric nanoparticles†

Peter J. Roth,*^a Jing Yang Quek,^a Yicheng Zhu,^a Bianca M. Blunden^a and Andrew B. Lowe*^a

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* Corresponding authors

^a Centre for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, UNSW Australia, University of New South Wales, Kensington, Sydney, NSW 2052, Australia
E-mail: P.Roth@unsw.edu.au, a.lowe@unsw.edu.au

Abstract

Mechanical stimulation of supersaturated aqueous CO₂ solutions is accompanied by a pH increase within seconds. In solutions of tailored homo- and AB diblock copolymers this is exploited to induce micelle formation, or, taking advantage of an aqueous upper critical solution temperature transition, nanoparticle disassembly.

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Article information

DOI: https://doi.org/10.1039/C4CC04139A
Article type: Communication
Submitted: 30 May 2014
Accepted: 04 Jul 2014
First published: 04 Jul 2014

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Chem. Commun., 2014,50, 9561-9564

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Mechano-responsive polymer solutions based on CO₂ supersaturation: shaking-induced phase transitions and self-assembly or dissociation of polymeric nanoparticles

P. J. Roth, J. Y. Quek, Y. Zhu, B. M. Blunden and A. B. Lowe, Chem. Commun., 2014, 50, 9561 DOI: 10.1039/C4CC04139A

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