Open AccessSynthesis and characterization of polypropylene glycol-graft-styrene
Author(s) -
ElSayed Negim,
A.M. Konysbay,
Galiya S. Irmukhametova,
Sergei N. Kalugin
Publication year - 2021
Publication title -
kompleksnoe ispolʹzovanie mineralʹnogo syrʹâ
Language(s) - English
Resource type - Journals
eISSN - 2616-6445
pISSN - 2224-5243
DOI - 10.31643/2021/6445.23
Subject(s) - styrene , copolymer , polypropylene glycol , fourier transform infrared spectroscopy , polypropylene , thermogravimetric analysis , grafting , polymer chemistry , materials science , thermal stability , polymerization , differential scanning calorimetry , nuclear chemistry , chemistry , chemical engineering , polymer , organic chemistry , composite material , polyethylene glycol , physics , engineering , thermodynamics
Grafting polymerization based on polypropylene glycol (PPG) and styrene (St) was synthesized with different composition of styrene using the free radical technique in the presence of potassium persulphate as an initiator. The grafted copolymers (PPG-g-St) used different styrene composition (65/15, 65/25, 65/35), respectively. The grafted copolymers were investigated through FTIR (Fourier-transform spectroscopy), Differential scanning calorimeter and thermogravimetric analyzer. FTIR showed new peaks at 1450 cm-1 and 1135 cm-1 due to the grafting process of St on PPG. Thermal stability of grafted copolymer increases by increasing the ratio of styrene, while Tg decreases by increasing the ratio of styrene.