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Spinodal-assisted crystallization in polymer melts

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Original languageEnglish
Pages (from-to)373-376
Number of pages4
JournalPhysical Review Letters
Volume81
Issue number2
DOIs
Publication statusPublished - 13 Jul 1998

Abstract

Recent experiments in some polymer melts quenched below the melting temperature have reported spinodal kinetics in small-angle x-ray scattering before the emergence of a crystalline structure. To explain these observations we propose that the coupling between density and chain conformation induces a liquid-liquid binodal within the equilibrium liquid-crystalline solid coexistence region. A simple phenomenological theory is developed to illustrate this idea, and several experimentally testable consequences are discussed. Shear is shown to enhance the kinetic role of the hidden binodal.

    Research areas

  • DENSITY-FLUCTUATIONS, INDUCTION PERIOD, POLY(ETHYLENE-TEREPHTHALATE), SCATTERING, CRYSTAL

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