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Synthesis and Structural Characterization of a Novel Composite Modified Starch

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Abstract:

In the normal pressure and presence of catalyst, a novel composite modified starch or functional surfactant was synthesized by using the cassava starch as the main feedstock through the alkalization, etherification and oxidation etc.. The degree of substitution was up to 1.21. Based on the orthogonal experiment and computer-aid methods, the optimum conditions were resulted as follows: the mass fractions(vs. dry starch) of chloroacetic acid, catalyst and oxidant were 32%, 0.01% and 1.14% respectively, and the reaction temperature of etherification was at 50°C for 4.1h. The structural characterization of the composite modified starch was determined by IR and X-ray diffraction.

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Periodical:

Advanced Materials Research (Volumes 396-398)

Pages:

1180-1183

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.396-398.1180

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Online since:

November 2011

Authors:

He Ping Li, Hu Qiang Lv, Yao Zhang, Yong Zhe Yang

Keywords:

Composite Modified Starch, Structural Characterization, Surfactant, Synthesis

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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