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PUBLICATIONS

Cessation of Spherulitic Growth in Phase-Separating Polyolefin Blends

Published

Author(s)

Haonan Wang, Charles C. Han

Abstract

The Blends of two statistical copolymers of ethylene/hexene (PEH) and ethylene/butene (PEB) exhibit both phase separation and crystallization transitions. Using optical microscopy (OM) and small angle light scattering (SALS), we demonstrate that the simultaneous phase separation and crystallization in olefin copolymer blends leads to novel morphology evolutilon. OM shows that spherulites grow at early times and cease to grow before they fill the volume. SALS shows the coexistence of the spherulitic pattern and spinodal ring indicating that the phase separation morphology is responsible for the cessation of the spherulitic growth.
Proceedings Title
American Chemical Society; Division of Polymer Chemistry, Meeting | | | American Chemical Society (ACS)
Volume
41
Issue
No. 2
Conference Dates
August 1, 2000
Conference Location
Undefined
Conference Title
Polymer Preprints
Pub Type
Conferences

Keywords

crystallization, phase-separation, polymer blend, polyolefin, small angle light scattering, spherulites

Citation

Wang, H. and Han, C. (2000), Cessation of Spherulitic Growth in Phase-Separating Polyolefin Blends, American Chemical Society; Division of Polymer Chemistry, Meeting | | | American Chemical Society (ACS), Undefined (Accessed October 7, 2025)

Issues

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Created July 31, 2000, Updated October 12, 2021
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