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Abstract
We have formulated the dynamics and the simulation scheme for large deformation of gels using the stress-diffusion coupling model [Yamaue, T., Taniguchi, T., and Doi, M., 2000, AIP Conference Proceedings, Vol. 519 (AIP), p. 584]. Using this model, we have simulated the deswelling process of 2D slab thermo-responsive gels undergoing spinodal decomposition, in comparison with the conventional collective diffusion model of gel networks. We reproduced the ‘plateau period’ due to the surface skin formation and the pattern formations in the inner region of gels by the stress-diffusion coupling model.
Acknowledgments
This work is supported by the national project (OCTA project), which has been entrusted to the Japan Chemical Innovation Institute (JCII) by the New Energy and Industrial Technology Development Organization (NEDO) under METI's Program for the Scientific Technology Development for Industries that Creates New Industries. The authors also acknowledge support from the Japan Science and Technology Agency (JST-CREST).