Studies on the grafting of acryloylated potato starch with styrene

• Published in: Journal of applied polymer science Vol. 96; no. 2; pp. 452 - 459
• Main Authors: Fang, J. M., Fowler, P. A., Hill, C. A. S.
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 15.04.2005; Wiley
• Subjects: Applied sciences; Exact sciences and technology; grafting; Natural polymers; Physicochemistry of polymers; polymerization; potato starch; Starch and polysaccharides; polymerization; Conversion rate; Priming activity; Potassium Peroxodisulfates; Starch graft copolymer; Experimental study; Grafting; Optimization; Radical catalyst; Chemical modification; Aqueous medium; Potato starch; Oside polymer; Acrylic acid derivatives; Acylation; Styrene copolymer
• ISSN: 0021-8995; 1097-4628
• DOI: 10.1002/app.21464

An investigation of graft polymerization to determine the potential of a starch‐bonded acryloyl group as a suitable coupling agent with vinyl monomers was carried out. In this case, potassium persulfate was used as a free‐radical initiator using water as the reaction solvent for further graft polymerization. This work revealed the ability of water as a reaction medium; perhydroxyl and hydroxyl radicals were easily formed from persulfate to produce free radicals to activate the styrene monomer towards grafting with acryloylated potato starch. The graft copolymers were characterized by FT‐IR spectroscopy and further confirmed using saponification. The analysis results showed the grafted potato starch with the styryl chain afforded protection to the ester bond, which resisted the alkaline hydrolysis. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 96: 452–459, 2005