Effect of Acrylic Acid on The Mechanical Properties of PVA/ Starch Blend Films

Negim, El-Sayed Moussa; B, Bakytzhanuly; P.I., Urkimbaeva; Bekbayeva, Lyazzat; B.H.O., Muhammad; Mohamad, Mohamad Nasir; Irmukhametova, Galiya; G.A., Mun

doi:10.21608/ejchem.2019.16125.1983

Effect of Acrylic Acid on The Mechanical Properties of PVA/ Starch Blend Films

Document Type : Original Article

Authors

¹ School of Chemical Engineering, Kazakh-British Technical University, Almaty, Kazakhstan

² Department of Chemistry & Technology of Organic Materials, Polymers and Natural Compounds, al Faraby Kazakh National University, 71, al-Faraby av., 050040, Almaty, Kazakhstan

³ Institute of Chemical and Biological Technologies, Satbayev University, 22 Satpayev Street, 050013 Almaty, Kazakhstan

⁴ School of Chemical Science, Universiti Sains Malaysia, 11800 Gelugor Pulau Pinang, Malaysia

⁵ School of Chemical Sciences, Universiti Sains Malaysia.

10.21608/ejchem.2019.16125.1983

Abstract

Grafting polymers based on acrylic acid (AA) with blend copolymer were synthesized with different ratio of AA (0.125, 0.25 and 0.5% by mass of blend copolymer) using ammonium persulfate as an initiator. The blend copolymer (PVA/S) was prepared by blending poly(vinyl alcohol) (PVA) with starch (S) in ratio (1: 1 wt.%), in presence of glacial acetic acid as a catalyst. The obtained polymers (PVA/S/AA) were characterized by FT-IR, TGA, DTG, SEM and mechanical test. The results showed that the mechanical properties of blend films are strongly dependent on the AA. Moreover, an increase in the ratio of AA in grafted polymers, increase thermal stability, tensile strength and elongation at break.

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