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

Published

April 1, 2002

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

Pub Type

Journals

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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 October 27, 2025)