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Diffusion of water and alcohol in chemically modified polyurethane

✍ Scribed by K. Sreenivasan

Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
234 KB
Volume
30
Category
Article
ISSN
0959-8103

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✦ Synopsis

Abstract

Diffusion of methanol and water in polyurethane and polyurethane chemically modified by grafting different acrylic monomers was carried out. The absorption of these two molecules was found to vary with the nature and percentage grafting of the monomers. The possible use of chemically modified polyurethanes as membranes having high selectivity towards the interaction of alcohol and water is highlighted.

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## Abstract Thermoplastic polyurethane elastomers (TPUs) are prepared including different amounts of rosin in their composition. Rosin is used either as an additive, mixed in the TPU solutions, or as a reactant in the chain‐extension step of polymer synthesis. The properties of the materials are st