Synthesis, structural study and thermokinetic parameters of terpolymer derived from p-hydroxybenzaldehyde, thiourea and ethylene glycol

2^nd International Conference and Exhibition on Polymer Chemistry

November 15-17, 2017 | San Antonio, USA

Amit N Gupta

JD College of Engineering and Management, India

Posters & Accepted Abstracts: J Material Sci Eng

Abstract :

Terpolymer abbreviated as HBTE-I and HBTE-II were synthesized by polycondensation of p-hydroxybenzaldehyde, thiourea and ethylene glycol using molar ratio 1:1:3 and 2:1:4 respectively of monomers in presence of polyphosphoric acid as catalyst at 120�°C. The tentative structures of terpolymer are determined by Elemental analysis, 1H NMR, FT-IR and UV-Visible spectra. The molecular weights of terpolymer were determined by non-aqueous conductometric titration. The molecular weights of HBTE-I and HBTE-II were found to be 3047 and 5964 respectively. Thermokinetic parameters were calculated by using Freeman-Carroll and Sharp-Wentworth methods in the temperature range 180�°Câ��511�°C. The values of the activation energy (Ea), frequency factor (A), apparent entropy change (â��S*) and free energy changes (â��G) were in good agreement. The order of degradation reaction determined by the FC method was confirmed by SW method.