Browsing Physics and Astronomy by Author "Kim, Yeongyoon"
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Maximal cell density predictions for compressible polymer foams
Thompson, Russell B.; Kim, Yeongyoon; Park, Chul B.; Chen, P. (Elsevier, 2012-12-05)Thermodynamic upper bounds for polymer foam cell densities are predicted using compressible selfconsistent field theory. It is found that the incompressible limit always gives the highest, and therefore ultimate, upper ... -
Origins of the failure of classical nucleation theory for nanocellular polymer foams
Thompson, Russell B.; Kim, Yeongyoon; Park, Chul B.; Chen, P. (RSC publishing, 2011-07-06)Relative nucleation rates for fluid bubbles of nanometre dimensions in polymer matrices are calculated using both classical nucleation theory and self-consistent field theory. An identical model is used for both calculations ... -
Study of Cell Nucleation in Nano Ploymer Foams: An SCFT Approach
Kim, Yeongyoon (University of Waterloo, 2012-10-26)This thesis is about "nano-cellular" polymer foams, i.e., to understand nano-bubble nucleation and growth mechanisms, we used Self-Consistent Field Theory(SCFT) for the research.\\ Classical Nucleation Theory (CNT) ... -
Towards Maximal Cell Density Predictions for Polymeric Foams
Thompson, Russell B.; Kim, Yeongyoon; Park, Chul B.; Chen, P. (Elsevier, 2011-10-04)Self-consistent field theory is used to make direct predictions for the maximum possible cell densities for model polymer foam systems without recourse to classical nucleation theory or activation barrier kinetic arguments. ...