Physical aging in isotactic polypropylene

Ibhadon, A. O.

Abstract

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.

Citation

Ibhadon, A. O. (1996). Physical aging in isotactic polypropylene. Journal of Applied Polymer Science, 62(11), 1843-1846. https://doi.org/10.1002/%28SICI%291097-4628%2819961212%2962%3A11%3C1843%3A%3AAID-APP8%3E3.0.CO%3B2-Q

• Journal Article Type: Article
• Acceptance Date: Jun 6, 1996
• Online Publication Date: Dec 7, 1998
• Publication Date: Dec 12, 1996
• Journal: Journal of Applied Polymer Science
• Print ISSN: 0021-8995
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 62
• Issue: 11
• Pages: 1843-1846
• DOI: https://doi.org/10.1002/%28SICI%291097-4628%2819961212%2962%3A11%3C1843%3A%3AAID-APP8%3E3.0.CO%3B2-Q
• Public URL: https://hull-repository.worktribe.com/output/409797
• Publisher URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/%28SICI%291097-4628%2819961212%2962%3A11%3C1843%3A%3AAID-APP8%3E3.0.CO%3B2-Q