Structure and Properties of Crosslinked Potato-Carboxymethyl Starch

doi:10.3969/j.issn.1000-565X.2011.03.005

Journal of South China University of Technology (Natural Science Edition) ›› 2011, Vol. 39 ›› Issue (3): 22-27.doi: 10.3969/j.issn.1000-565X.2011.03.005

• Electronics, Communication & Automation Technology • Previous Articles Next Articles

Structure and Properties of Crosslinked Potato-Carboxymethyl Starch

Zhong Zhen-sheng Zhong Yan-ping Sun Ang

School of Chemistry and Chemical Engineering，South China University of Technology，Guangzhou 510640，Guangdong，China

Received:2010-06-11 Revised:2010-07-14 Online:2011-03-25 Published:2011-02-01
Contact: 钟振声(1955-)，男，教授，主要从事精细化工研究 E-mail:chszhong@scut.edu.cn
About author:钟振声(1955-)，男，教授，主要从事精细化工研究
Supported by:
广东省科技计划国际合作项目(B15B2071080)

Abstract

Abstract:

Crosslinked carboxymethyl starch（CCMS） was synthesized from potato starch,with epichlorohydrin as the crosslinking agent.Then,the properties of CCMS were compared with those of native potato starch,crosslinked starch（CS）,carboxymethyl starch（CMS） and carboxymethyl cellulose（CMC）,finding that CCMS paste is of excellent aging resistance,thermal stability,pH stability and shear stability.Moreover,the molecular structure and particle morphology of potato starch and the modified starches were characterized by means of FT-IR,ESEM and XRD,with the modification degree and the relationship between structure and properties being also analyzed.The results indicate that CCMS is of reasonable structure and excellent

Key words: potato starch, crosslinking, carboxymethyl, compound modification, properties

Zhong Zhen-sheng Zhong Yan-ping Sun Ang. Structure and Properties of Crosslinked Potato-Carboxymethyl Starch[J]. Journal of South China University of Technology (Natural Science Edition), 2011, 39(3): 22-27.

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Structure and Properties of Crosslinked Potato-Carboxymethyl Starch

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