Preparation and characterization of new quaternized carboxymethyl chitosan/rectorite nanocomposite
Wang, XY; Liu, B; Ren, JL; Liu, CF; Wang, XH; Wu, J; Sun, RC; xyw@scut.edu.cn; rcsun3@bjfu.edu.cn
2010
发表期刊COMPOSITES SCIENCE AND TECHNOLOGY
ISSN0266-3538
卷号70期号:7页码:1161-1167
摘要Quaternized carboxymethyl chitosan (QCMC) was intercalated into the interlayer of rectorite (REC) to prepare QCMC/REC nanocomposite. XRD and TEM results revealed that REC was well dispersed in the polymer matrix and obtained the largest interlayer distance when the mass ratio of QCMC to REC was 2:1. FTIR, NMR and zeta-potential analyses showed that the intercalation of QCMC did not destroy the structure of REC layer, but there were hydrogen-bonding and electrostatic interactions between QCMC and REC. Quaternized chitosan (HTCC)/REC nanocomposite was prepared and studied in parallel. The comparative analysis of the two biopolymer/clay nanocomposites indicated that the free volume and positive charge density of biopolymers were important factors that affected the intercalation of biopolymer into clay. At last, thermal analysis indicated that QCMC/REC nanocomposites had obviously higher thermal stability in comparison with QCMC. This study shows that the combination with clay materials is a functional way to expand the possible application of QCMC as drug controlled-release carriers, antimicrobial agent and pulp-cap. (C) 2010 Elsevier Ltd. All rights reserved.
部门归属[Wang, Xiaoying; Liu, Bo; Ren, Junli; Liu, Chuanfu; Wang, Xiaohui; Sun, Runcang] S China Univ Technol, Sch Light Ind & Food, State Key Lab Pulp & Paper Engn, Guangzhou 510640, Peoples R China; [Sun, Runcang] Beijing Forestry Univ, Inst Biomass Chem & Technol, Beijing 100083, Peoples R China; [Wu, Jun] Chinese Acad Sci, S China Sea Inst Oceanol, Key Lab Marine Bioresourses Sustainable Utilizat, Guangzhou 510301, Guangdong, Peoples R China
关键词Chitosan Nanoclays Nanocomposite Thermal Properties
学科领域Materials Science, Composites
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收录类别sci
资助项目LMB
WOS记录号WOS:000279137700019
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被引频次:55[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/3808
专题中科院海洋生物资源可持续利用重点实验室
通讯作者xyw@scut.edu.cn; rcsun3@bjfu.edu.cn
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Wang, XY,Liu, B,Ren, JL,et al. Preparation and characterization of new quaternized carboxymethyl chitosan/rectorite nanocomposite[J]. COMPOSITES SCIENCE AND TECHNOLOGY,2010,70(7):1161-1167.
APA Wang, XY.,Liu, B.,Ren, JL.,Liu, CF.,Wang, XH.,...&rcsun3@bjfu.edu.cn.(2010).Preparation and characterization of new quaternized carboxymethyl chitosan/rectorite nanocomposite.COMPOSITES SCIENCE AND TECHNOLOGY,70(7),1161-1167.
MLA Wang, XY,et al."Preparation and characterization of new quaternized carboxymethyl chitosan/rectorite nanocomposite".COMPOSITES SCIENCE AND TECHNOLOGY 70.7(2010):1161-1167.
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