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学科主题: Materials Science, Composites
题名: Preparation and characterization of new quaternized carboxymethyl chitosan/rectorite nanocomposite
作者: Wang, XY ; Liu, B ; Ren, JL ; Liu, CF ; Wang, XH ; Wu, J ; Sun, RC
通讯作者: xyw@scut.edu.cn ; rcsun3@bjfu.edu.cn
关键词: Chitosan ; Nanoclays ; Nanocomposite ; Thermal properties
刊名: COMPOSITES SCIENCE AND TECHNOLOGY
发表日期: 2010
卷: 70, 期:7, 页:1161-1167
收录类别: sci
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
项目归属: LMB
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.
原文出处: 查看原文
WOS记录号: WOS:000279137700019
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/3808
Appears in Collections:中科院海洋生物资源可持续利用重点实验室_期刊论文

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Recommended Citation:
Wang, XY; Liu, B; Ren, JL; Liu, CF; Wang, XH; Wu, J; Sun, RC.Preparation and characterization of new quaternized carboxymethyl chitosan/rectorite nanocomposite,COMPOSITES SCIENCE AND TECHNOLOGY,2010,70(7):1161-1167
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