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Thermosetting reactions: Thermochemical reactions of triallyl cyanurate and triallyl isocyanurate
Author(s) -
Gillham J. K.,
Mentzer C. C.
Publication year - 1973
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.1973.070170412
Subject(s) - depolymerization , isomerization , thermosetting polymer , monomer , chemistry , polymerization , polymer chemistry , claisen rearrangement , calorimetry , organic chemistry , polymer , physics , catalysis , thermodynamics
Triallyl cyanurate (TAC) and triallyl isocyanurate (TAIC) are thermosetting monomers with interesting interrelations:Calorimetry and infrared spectrophotometry were used to investigate the influence of atmosphere and initiator on the thermal events. The large extents of reaction observed during polymerization of TAC and TAIC are attributed to the formation of intramolecular rings. The higher conversions obtained with TAC are attributed to the extra length and flexibility of its allyl groups. Isomerization of poly(TAC) to poly(TAIC) is described as a three‐step process: depolymerization of poly(TAC) to form monomeric TAC, isomerization of TAC to TAIC by a Claisen rearrangement, and repolymerization of the TAIC to poly(TAIC).