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Synthesis and characteristics of polyarylene ether sulfonesA method utilizing potassium carbonate/dimethyl acetamide, as base and solvent respectively, was used for the synthesis of several homopolymers and copolymers derived from various bisphenols. It is demonstrated that this method deviates from simple second order kinetics; this deviation being due to the heterogeneous nature of the reaction. Also, it is shown that a liquid induced crystallization process can improve the solvent resistance of these polymers. Finally, a Monte Carlo simulation of the triad distribution of monomers in nonequilibrium copolycondensation is discussed.
Document ID
19810016634
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Viswanathan, R. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Johnson, B. C. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Ward, T. C. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Mcgrath, J. E. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Date Acquired
September 4, 2013
Publication Date
May 1, 1981
Subject Category
Inorganic And Physical Chemistry
Report/Patent Number
NASA-CR-164436
Accession Number
81N25169
Funding Number(s)
CONTRACT_GRANT: NSG-1599
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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