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Syntheses and characterization of starch-poly(methacrylic acid) graft copolymers

✍ Scribed by V. D. Athawale; S. C. Rathi

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
121 KB
Volume
66
Category
Article
ISSN
0021-8995

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✦ Synopsis

Methacrylic acid (MA) was graft polymerized onto starch using Ce 4/ initiator in aqueous medium. The dependence of grafting on the reaction variables, such as monomer and initiator concentration and time and temperature, was studied in detail. Acid hydrolysis and infrared (IR) spectroscopy were used for the confirmation of graft copolymer formation. Further, a representative graft copolymer was characterized by x-ray diffraction (XRD), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). The solubility/swellability and the gelatinization characteristics of the copolymers are also reported.

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