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Physical aging in isotadic polypropylene

Ibhadon, Alex


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Dr Alex Ibhadon
Reader in Catalysis and Reactor Engineering


Physical aging studies were made using commercial and laboratory samples of isotactic polypropylene. Linear and nonlinear viscoelastic responses were measured after quenching the glass from above the glass transition temperatures to below the glass transition. Results show that aging is not eliminated by large mechanical deformations; rather, the time required for the glass to age into equilibrium is independent of the applied stress. Results obtained are purely kinetic and interpreted as the effects accompanying the process of glass formation in a semicrystalline polymer.

Journal Article Type Article
Publication Date Dec 12, 1996
Print ISSN 0021-8995
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 62
Issue 11
Pages 1843 - 1846
APA6 Citation Ibhadon, A. (1996). Physical aging in isotadic polypropylene. Journal of Applied Polymer Science, 62(11), 1843 - 1846.
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