CHEMISTRY AND RHEOLOGICAL BEHAVIOR OF ACRYLATE TERMINATED VINYL ESTER RESINS PREPARED IN PRESENCE OF TERTIARY AMINES

摘要

Vinyl ester resins V_1, V_2 and V_3 of acid value (～6 mg KOH/g solid) were synthesized using bisphenol-A epoxy and acrylic acid in presence of triethyl-, tripropyl- and tributyl amines, respectively. The synthesized resins were characterized by FTIR spectroscopy and a new peak at 2360cm~(-1) was observed due to attachment of amines to resin structure by a hydrogen bond. All the resins containing styrene (40% w/w) as reactive diluent were studied for their rheological behavior at different temperature and shear rates. Rheological properties of these resins show some unusual behavior, which is attributed to the hydrogen bond between the resins and the amines.