Journal
CARBOHYDRATE POLYMERS
Volume 75, Issue 1, Pages 71-78Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2008.06.012
Keywords
Polymerization; Sizing agent; Percentage grafting; Starch binding; Textile wet processing
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The graft copolymerization of styrene (ST), methyl methacrylate (MMA)/butyl acrylate (BA) with starch was carried chemically using ferrous ion-peroxide redox system. The grafting was performed at 60 degrees C and the monomer ratios of ST/MMA and ST/BA was varied with their % composition as 80/20, 50/50 and 20/80 parts by weight. The effect of initiator concentration, starch concentration and the monomer ratio on the grafting efficiency was studied. The grafted starch granules (GSG) were further analyzed for their particle size, bulk density and by sizing on cotton yarn for its physico-mechanical properties such as tensile strength, elongation at break, etc. The rheological properties of the resulting granular product in water as well as the starch graft copolymer emulsion were studied. (C) 2008 Elsevier Ltd. All rights reserved.
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