Effect of surface esterification with octenyl succinic anhydride on hydrophilicity of corn starch films
作者： Jiang Zhou , Lili Ren , Jin Tong , Yunhai Ma
DOI: 10.1002/APP.30709
关键词:
摘要: Surface of corn starch films was modified through esterification using octenyl succinic anhydride as reactant. Physical properties the films, moisture absorption, and water contact angle were measured to characterize effect surface modification. The influences concentration alkaline aqueous solution for activating starch, reaction temperature, time investigated. It found that pretreatments with 1.0% or 2.0% NaOH reacting at 35°C 6 h gave rise possessing higher angle, lower equilibrium content, absorption rate 95% relative humidity (RH). After modification, content film decreased up 29% RH increased 83%. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci,
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