Mechanical response and equilibrium swelling of temperature-responsive gels

A. D. Drozdov; J. deClaville Christiansen

doi:10.1016/j.eurpolymj.2017.06.045

Mechanical response and equilibrium swelling of temperature-responsive gels

A. D. Drozdov, J. deClaville Christiansen

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

A model is developed for the mechanical behavior of thermo-responsive gels that accounts for an increase in concentration of physical cross-links between chains driven by phase separation. Governing equations are derived for equilibrium water uptake under unconstrained and constrained swelling, as well as for the elastic response of swollen gels. These relations are applied to the analysis of swelling diagrams on NIPA, VCL, PEG, and NIPA-DMIAA gels. The ability of the model to predict the growth of elastic moduli above the volume phase transition temperature is confirmed by numerical simulation.

Original language	English
Pages (from-to)	56-67
Number of pages	12
Journal	European Polymer Journal
Volume	94
DOIs	https://doi.org/10.1016/j.eurpolymj.2017.06.045
State	Published - 1 Sep 2017
Externally published	Yes

Keywords

Elastic response
Swelling
Temperature-sensitive gel
Volume phase transition

ASJC Scopus subject areas

General Physics and Astronomy
Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1016/j.eurpolymj.2017.06.045

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title = "Mechanical response and equilibrium swelling of temperature-responsive gels",

abstract = "A model is developed for the mechanical behavior of thermo-responsive gels that accounts for an increase in concentration of physical cross-links between chains driven by phase separation. Governing equations are derived for equilibrium water uptake under unconstrained and constrained swelling, as well as for the elastic response of swollen gels. These relations are applied to the analysis of swelling diagrams on NIPA, VCL, PEG, and NIPA-DMIAA gels. The ability of the model to predict the growth of elastic moduli above the volume phase transition temperature is confirmed by numerical simulation.",

keywords = "Elastic response, Swelling, Temperature-sensitive gel, Volume phase transition",

author = "Drozdov, {A. D.} and {deClaville Christiansen}, J.",

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AU - deClaville Christiansen, J.

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AB - A model is developed for the mechanical behavior of thermo-responsive gels that accounts for an increase in concentration of physical cross-links between chains driven by phase separation. Governing equations are derived for equilibrium water uptake under unconstrained and constrained swelling, as well as for the elastic response of swollen gels. These relations are applied to the analysis of swelling diagrams on NIPA, VCL, PEG, and NIPA-DMIAA gels. The ability of the model to predict the growth of elastic moduli above the volume phase transition temperature is confirmed by numerical simulation.

KW - Elastic response

KW - Swelling

KW - Temperature-sensitive gel

KW - Volume phase transition

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VL - 94

SP - 56

EP - 67

JO - European Polymer Journal

JF - European Polymer Journal

ER -

Mechanical response and equilibrium swelling of temperature-responsive gels

Abstract

Keywords

ASJC Scopus subject areas

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