This Book is very useful for University students, Research Scholars and Industry. This book deals with the synthesis and structural study of terpolymers. The terpolymers were characterized by elemental analysis, molecular weight by non-aqueous conductometric method, UV-Visible spectra, IR spectra and 1H NMR spectra. Most probable structures of terpolymers were assigned with the help of elemental analysis, UV-Visible spectra, IR spectra and 1H NMR spectra.