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Curing of epoxides with O,O ‐di‐ t ‐butyl phenylphosphonate as thermally latent initiator
Author(s) -
Kim Moonsuk,
Sanda Fumio,
Endo Takeshi
Publication year - 2001
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.1675
Subject(s) - polymer chemistry , curing (chemistry) , polymerization , chemistry , solvent , epoxy , ether , epoxide , ammonium , organic chemistry , polymer , catalysis
Abstract The polymerization of glycidyl phenyl ether (GPE) was examined with O,O ‐di‐ t ‐butyl phenylphosphonate (BP) as an initiator in the presence of several Lewis acids, ammonium salts, and methyl cyanoacetate. BP served as an excellent thermally latent initiator in the polymerization of GPE in the presence of ZnCl 2 and Zn(acac) 2 . Epikote 828 was cured with BP (5 mol %) in the presence of ZnCl 2 at 150°C to afford the solvent‐insoluble gelled epoxy resin quantitatively, which was thermally more stable than was the one cured without ZnCl 2 . No curing took place at room temperature for 7 months. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 81: 2347–2351, 2001