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Issue 37, 2014
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Collapsing and reswelling kinetics of thermoresponsive polymers on surfaces: a matter of confinement and constraints

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Abstract

We report on the collapsing and reswelling ability of grafted poly(methyl vinyl ether) chains of different molecular architectures. In order to study the influence of constraints and confinement of the chains, the polymer was grafted onto AFM tips, as a model of a curved nano-sized surface, and onto macroscopic silicon substrates for comparison purposes. AFM-based force spectroscopy experiments were performed to characterise at the nanoscale the temperature-dependent collapsing process and the reversibility to the swollen state on both substrates. The reversible character of the thermoresponsive transition and its kinetics were shown to greatly depend on the polymer architecture and the constraints encountered by the chains.

Graphical abstract: Collapsing and reswelling kinetics of thermoresponsive polymers on surfaces: a matter of confinement and constraints

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The article was received on 12 Jun 2014, accepted on 30 Jun 2014 and first published on 04 Jul 2014


Article type: Paper
DOI: 10.1039/C4SM01266F
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Citation: Soft Matter, 2014,10, 7256-7261

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    Collapsing and reswelling kinetics of thermoresponsive polymers on surfaces: a matter of confinement and constraints

    N. Willet, S. Gabriel, C. Jérôme, F. E. Du Prez and A. Duwez, Soft Matter, 2014, 10, 7256
    DOI: 10.1039/C4SM01266F

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