Dynamics of polyurethane elastomers by muon spin relaxation

Clayden, N. J., Jayasooriya, U. A., Stride, J. A. and King, P. (2000) Dynamics of polyurethane elastomers by muon spin relaxation. Polymer, 41 (9). pp. 3455-3461. ISSN 0032-3861

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Abstract

Muon spin relaxation has been used to study the dynamics of hard domains in three polyurethane elastomers based on methylenediphenyleneisocyanate. Repolarisation curves of the muonium spin show the muon implants to the aromatic ring of the hard segments. Qualitative changes in the muon spin relaxation rate indicative of phenyl ring dynamics can be seen as the polyurethane is heated from 100 to 470 K. Interpretation of the changes seen in the muon spin relaxation rate are hampered by the absence of a detailed theoretical understanding. Further, poor muon counting statistics of this initial experiment make an accurate analysis impossible. (C) 2000 Elsevier Science Ltd. All rights reserved.

Item Type:	Article
Faculty \ School:	Faculty of Science > School of Chemistry
UEA Research Groups:	Faculty of Science > Research Groups > Physical and Analytical Chemistry (former - to 2017)
Depositing User:	Rachel Smith
Date Deposited:	15 Jun 2011 11:19
Last Modified:	15 Aug 2023 10:30
URI:	https://ueaeprints.uea.ac.uk/id/eprint/32492
DOI:	10.1016/S0032-3861(99)00497-8

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