TY - JOUR
T1 - Mechanical response and equilibrium swelling of temperature-responsive gels
AU - Drozdov, A. D.
AU - Christiansen, Jesper de Claville
PY - 2017/9/1
Y1 - 2017/9/1
N2 - 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.
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
UR - http://www.scopus.com/inward/record.url?scp=85021639343&partnerID=8YFLogxK
U2 - 10.1016/j.eurpolymj.2017.06.045
DO - 10.1016/j.eurpolymj.2017.06.045
M3 - Journal article
AN - SCOPUS:85021639343
SN - 0014-3057
VL - 94
SP - 56
EP - 67
JO - European Polymer Journal
JF - European Polymer Journal
ER -