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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemistry
Crystallization of very low density copolymers of ethylene with α‐olefins
Journal of Applied Polymer Science, Volume 58, No. 8, Year 1995
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Description
Differential scanning calorimetry (DSC) was used to analyze the crystal distribution in homogeneous ethylene–octene copolymers polymerized by the constrained geometry catalyst technology (CGCT). To minimize ambiguities from thermal history effects, copolymers were isothermally annealed at temperatures within the melting range. The cumulative crystallinity was related to the crystal distribution by the Gibbs–Thomson equation. The results provided a clear distinction between Type I copolymers (density less than 0.89 g/cc) and Type II copolymers (densities between 0.89 and 0.91 g/cc). The former had a singlecrystal population that was identified with the bundled crystals seen in transmission electron micrographs. In comparison, the latter had two crystal populations that correlated with lamellar crystals and bundled crystals. © 1995 John Wiley & Sons, Inc. Copyright © 1995 John Wiley & Sons, Inc.
Authors & Co-Authors
Minick, Jill
United States, Cleveland
Case Western Reserve University
United States, Midland
The Dow Chemical Company
Moet, Abdelsamie A.
United States, Cleveland
Case Western Reserve University
United Arab Emirates, Al Ain
United Arab Emirates University
Hiltner, Anne
United States, Cleveland
Case Western Reserve University
Baer, Eric
United States, Cleveland
Case Western Reserve University
Chum, Stephen P.
United States, Midland
The Dow Chemical Company
Statistics
Citations: 149
Authors: 5
Affiliations: 3
Identifiers
Doi:
10.1002/app.1995.070580819
ISSN:
00218995
e-ISSN:
10974628
Study Design
Cross Sectional Study