Synthesis and characterization of polypropylene glycol-graft-styrene

E. Negim; A.M. Konysbay; G. Irmukhametova; S.N. Kalugin

doi:10.31643/2021/6445.23

Authors

E. Negim Kazakh-British Technical University, Almaty, Kazakhstan
A.M. Konysbay Kazakh-British Technical University, Almaty, Kazakhstan
G. Irmukhametova al Faraby Kazakh National University, Almaty, Kazakhstan
S.N. Kalugin al Faraby Kazakh National University, Almaty, Kazakhstan

DOI:

https://doi.org/10.31643/2021/6445.23

Keywords:

Grafting, polymerization, styrene, copolymer, radical.

Abstract

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 T_g decreases by increasing the ratio of styrene.

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Author Biographies

E. Negim, Kazakh-British Technical University, Almaty, Kazakhstan

Ph.D. professor, School of Chemical Engineering, Kazakh-British Technical University, Almaty, Kazakhstan.

A.M. Konysbay, Kazakh-British Technical University, Almaty, Kazakhstan

Master student, School of Chemical Engineering, Kazakh-British Technical University, Almaty, Kazakhstan.

G. Irmukhametova, al Faraby Kazakh National University, Almaty, Kazakhstan

Associate professor. School of Energy, Department of Chemistry & Technology of Organic Materials, Polymers and Natural Compounds, al Faraby Kazakh National University.

S.N. Kalugin, al Faraby Kazakh National University, Almaty, Kazakhstan

Professor, School of Energy, Department of Chemistry & Technology of Organic Materials, Polymers and Natural Compounds, al Faraby Kazakh National.

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