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A processable prepolymer for the preparation of a stable conductive polymer
Author(s) -
Walton Theodore R.
Publication year - 1989
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1989.070370715
Subject(s) - prepolymer , materials science , polymer , polymerization , melting point , curing (chemistry) , polymer chemistry , thermal stability , monomer , chemical engineering , exothermic reaction , acetylene , polyacetylene , conjugated system , composite material , organic chemistry , chemistry , polyurethane , engineering
We recently reported 1 the synthesis and polymerization of a completely conjugated acetylene terminated prepolymer into an intrinsically conducting organic polymer. Although this polymer exhibited high thermal and environmental stability, its processing window, i.e., the temperature at which it melted vs. the temperature of the highly exothermic cure, was narrow. We now report the synthesis and polymerization of an isomer of this acetylene terminated material. This change in structure resulted in a 63°C decrease in the melting point (87 vs. 150°C) that provides a more than adequate liquid range between melting and the on‐set of curing. Along with the greatly improved processing, this isomer results in an intrinsically conducting, thermally and oxidatively stable polymer equivalent to the original material.