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Structural organization and transport properties of iPP/LLDPE blends solidified at controlled cooling rates
Article first published online: 14 SEP 2001
DOI: 10.1002/app.2071
Copyright © 2001 John Wiley & Sons, Inc.
1097-4628/asset/cover.gif?v=1&s=e26a028b9ea53b1db3bdcdf154d4f4fab00f90a5 "Journal of Applied Polymer Science")
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How to Cite
Coccorullo, I., Gorrasi, G. and Pantani, R. (2001), Structural organization and transport properties of iPP/LLDPE blends solidified at controlled cooling rates. J. Appl. Polym. Sci., 82: 2237–2244. doi: 10.1002/app.2071
Publication History
- Issue published online: 14 SEP 2001
- Article first published online: 14 SEP 2001
- Manuscript Accepted: 25 FEB 2001
- Manuscript Received: 6 NOV 2000
Funded by
- CNR-Progetto Finalizzato Materiali Speciali per Tecnologie Avanzate II
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Keywords:
- blends;
- polyethylene;
- poly(propylene);
- diffusion
Abstract
The structural organization of blends of isotactic polypropylene (iPP) and linear low-density polyethylene (LLDPE), with different compositions, was studied and correlated with the thermal history followed by the samples during solidification from the molten state. The materials were cooled at two extreme controlled rates: 0.1 and 500°C/s. The resulting structure was investigated both in the crystalline and the amorphous phases. In particular, attention was focused toward the analysis of the diffusion parameters of dichloromethane vapors, and the morphological organization of the amorphous phases was interpreted using models that consider them (in terms of resistance to diffusion) combined in series and in parallel. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 82: 2237–2244, 2001