(1) Department of Chemistry, Sardar Patel University, 388 120 Vallabh Vidyanagar
Abstract:
o-,p- andm-xylene have been condensed with formaldehyde using paratoluene sulphonic acid as a catalyst and acetic acid/acetic anhydride
as a solvent. The xylene-formaldehyde resins thus obtained have been characterised by IR and NMR spectra. The average molecular
weight of the resin samples was determined by vapour pressure osmometry. Kinetic parameters were determined by differential
thermal analysis, thermogravimetry and differential scanning calorimetry.