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The thermal conversion of the tetrahydrothiophene‐precursor polymer to poly( p ‐phenylene vinylene)
Author(s) -
Herold M.,
Gmeiner J.,
Schwoerer M.
Publication year - 1999
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/(sici)1099-1581(199905)10:5<251::aid-pat868>3.0.co;2-y
Subject(s) - tetrahydrothiophene , materials science , polymer , poly(p phenylene vinylene) , polymer chemistry , phenylene , reaction mechanism , photochemistry , chemistry , stereochemistry , organic chemistry , catalysis , conjugated system , composite material
This paper reports the thermal conversion of the tetrahydrothiophene (THT)‐precursor to poly(p‐phenylene vinylene) (PPV). Detailed investigations of the conversion process show that the leaving groups THT and HCl do not eliminate simultaneously. Moderate temperatures (≤125 °C) are sufficient to eliminate the THT while a higher temperature of ≈150 °C is necessary for the leaving group HCl. Furthermore, the THT groups split off at two characteristic temperatures. Our investigations have shown that a consistent picture of the reaction mechanism can only be obtained if the configuration of the polymer chain is considered. For the total reaction of the THT‐precursor to PPV a reaction mechanism is suggested that consists of at least four steps. Copyright © 1999 John Wiley & Sons, Ltd.