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Competing Growth Kinetics in Simultaneously Crystallizing and Phase-Separating Polymer Blends

Published

Author(s)

Haonan Wang, K Shimizu, H W. Kim, Erik K. Hobbie, G Z. Wang, Charles C. Han

Abstract

The kinetic interplay between crystallization and phase separation in a polymer blend has been examined. By controlling the relative quench depths for liquid-liquid phase separation and crystallization, the growth kinetics of the characteristic length scales of the simultaneous ordering processes show a crossover from crystallization dominated to phase-separation dominated behavior. Based on a scaling argument of the late stage spinodal decomposition, the kinetic crossover is inevitable in a blend where the critical temperature for the liquid-liquid phase separation is above the equilibrium melting temperature of the blend.
Citation
Journal of Chemical Physics
Volume
116
Issue
No. 16

Keywords

blend, crystallization, kinetics, light scattering, optical microscopy, phase separation, polyolefin, scaling law

Citation

Wang, H. , Shimizu, K. , Kim, H. , Hobbie, E. , Wang, G. and Han, C. (2002), Competing Growth Kinetics in Simultaneously Crystallizing and Phase-Separating Polymer Blends, Journal of Chemical Physics, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=851974 (Accessed April 17, 2024)
Created March 31, 2002, Updated October 12, 2021