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Article
Cleavage Reactions in Crosslinked Urethane Elastomers
The Journal of Physical Chemistry (1964)
  • William MacKnight, University of Massachusetts Amherst
  • A. V. Tobolsky
Abstract
A study of network cleavage in a crosslinked poJ.yurethane elastomer was ma.de using the technique of stress relaxation. 
It was found that the data could be well represented by a sum 
of two exponential decay terms, and a theoretical explanation for this is presented. stress relaxation in the. polyurethane sample investigated is discussed in terms of the reversible cleavage 
of various linkages formed by isocyanate reactions. It is possible to identify two different decay processes and obtain activation energies for these processes. These are identified with cleavage of two different linkages. It is not possible at present to give a certain chemical identification of the linkages responsible for stress decay. 
Keywords
  • cleavage reactions,
  • crosslinked urethane,
  • elastomers
Disciplines
Publication Date
1964
Citation Information
William MacKnight and A. V. Tobolsky. "Cleavage Reactions in Crosslinked Urethane Elastomers" The Journal of Physical Chemistry (1964)
Available at: http://works.bepress.com/william_macknight/5/