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

Download Paper

Local Download

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 2, 2025)