The calcium salt of p-aminobenzoic acid [p-ABA(Ca)] was reacted with epichl
orohydrin to yield the multifunctional epoxy resin. The epoxy resin was cha
racterized by IR spectroscopy, epoxy equivalent, calcium estimation, high p
erformance liquid chromatography (HPLC) and refractive index. The epoxy res
in was further reacted with methacrylic acid to yield the calcium containin
g methacrylate resin, which was characterized by IR, hydroxyl value, iodine
value, HPLC and refractive index. (C) 2001 John Wiley & Sons, Inc.