Preparation and Characterization of Quaternized Chitosan Under Microwave Irradiation
Luo, JW; Wang, XY; Xia, B; Wu, J; xyw@scut.edu.cn
2010
发表期刊JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY
ISSN1060-1325
卷号47期号:9页码:952-956
摘要For the first time, N-(2-hydroxyl) propyl-3-trimethyl ammonium chitosan chloride (HTCC) was prepared through a fast, easy and efficient method with the assistance of microwave irradiation, and the quaternized chitosan was also degraded via the microwave irradiation. A comparative study was performed by using the conventional heating method to prepare HTCC. The structure and property of the quaternized chitosan obtained by these two methods were characterized by GPC, XRD, FTIR, NMR, TG and elemental analysis. It was shown that quaternized chitosan was successfully prepared within 50 min via microwave irradiation method, while a much longer time of 6-7 h was needed with the conventional heating method. The substitutions both occurred on the C2 position of chitosan with the two different methods, and their HTCC products had weight average similar molecular weight (Mw), structure and thermal stability. The HTCC prepared by the microwave irradiation method had a little lower degree of substitution (DS) than those prepared via conventional heating with the same mole ratio (6: 1) of the intermediate to chitosan. The degradation study showed that the Mw of HTCC decreased rapidly from 4.6 x 10(5) to 1.1 x 10(5) in 1 h under microwave irradiation, while it only decreased from 4.6 x 10(5) to 2.1 x 10(5) in 1 h through conventional heating degradation. These results revealed that microwave irradiation is a more efficient and environment-friendly way to obtain the water-soluble chitosan derivatives and their degraded products.
部门归属[Wang, Xiaoying] S China Univ Technol, State Key Lab Pulp & Paper Engn, Sch Light Ind & Food, Guangzhou 510640, Guangdong, Peoples R China; [Luo, Jiwen; Xia, Bin] Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou, Guangdong, Peoples R China; [Wu, Jun] Chinese Acad Sci, Key Lab Marine Bioresources Sustainable Utilizat, S China Sea Inst Oceanol, Guangzhou, Guangdong, Peoples R China
关键词Quaternized Chitosan Microwave Irradiation Conventional Heating Thermal Stability
学科领域Polymer Science
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收录类别sci
资助项目LMB
WOS记录号WOS:000280546700010
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被引频次:23[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/344004/3790
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
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Luo, JW,Wang, XY,Xia, B,et al. Preparation and Characterization of Quaternized Chitosan Under Microwave Irradiation[J]. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY,2010,47(9):952-956.
APA Luo, JW,Wang, XY,Xia, B,Wu, J,&xyw@scut.edu.cn.(2010).Preparation and Characterization of Quaternized Chitosan Under Microwave Irradiation.JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY,47(9),952-956.
MLA Luo, JW,et al."Preparation and Characterization of Quaternized Chitosan Under Microwave Irradiation".JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 47.9(2010):952-956.
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