Article (Scientific journals)
Collapsing and reswelling kinetics of thermoresponsive polymers on surfaces: a matter of confinement and constraints
Willet, Nicolas; Gabriel, Sabine; Jérôme, Christine et al.
2014In Soft Matter, 10, p. 7256-7261
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Keywords :
Atomic Force Microscopy; Force Spectroscopy; Thermoresponsive polymers; Polymer brushes; Macromolecular engineering
Abstract :
[en] 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.
Disciplines :
Physical, chemical, mathematical & earth Sciences: Multidisciplinary, general & others
Chemistry
Physics
Author, co-author :
Willet, Nicolas ;  Université de Liège - ULiège > Département de chimie (sciences) > Nanochimie et systèmes moléculaires
Gabriel, Sabine ;  Université de Liège - ULiège > Département de chimie (sciences) > Chimie des macromolécules et des matériaux organiques (CERM)
Jérôme, Christine  ;  Université de Liège - ULiège > Département de chimie (sciences) > Chimie des macromolécules et des matériaux organiques (CERM)
Du Prez, Filip;  Universiteit Gent - Ugent > Department of Organic and Macromolecular Chemistry > Polymer Chemistry Research Group
Duwez, Anne-Sophie  ;  Université de Liège - ULiège > Département de chimie (sciences) > Nanochimie et systèmes moléculaires
Language :
English
Title :
Collapsing and reswelling kinetics of thermoresponsive polymers on surfaces: a matter of confinement and constraints
Publication date :
July 2014
Journal title :
Soft Matter
ISSN :
1744-683X
eISSN :
1744-6848
Publisher :
Royal Society of Chemistry, Cambridge, United Kingdom
Volume :
10
Pages :
7256-7261
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 01 September 2014

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