Modification of Novel phenol-formaldehyde Resins By Esterification

Abstract

This work involves the preparation of three phenol-formaldehyde resins that have pendant 1-cyclopentene-1,2-dicarboxylimidyl.The target compounds produce by condensation of  N-(hydroxyl phenyl)-1-cyclo pentene-1,2-dicarboxylimidyl with  formaldehyde under conditions similar to those in Novolac preparation. The prepared resins were modified by  esterification  of  phenolic  hydroxyl  groups  in  the prepared resins via treatment with  benzoyl, acryloyl, methacryloyl and cinnamoyl chlorides respectively in the presence of  triethylamine. The synthesis compounds were characterized by FTIR and U.V spectral data and determined softening points of crystalline solid resins, intrinsic viscosities of soluble resins