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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Yang, Xiaodeng Zhang, Chuanguang Qiao, Congde Mu, Xueli Li, Tianduo Xu, Jinku Shi, Lei Zhang, Dongju |
| Description | Author Affiliation: Yang X ( Key Laboratory of Fine Chemicals (Shandong Province), Qilu University of Technology, Jinan 250353, PR China.); Zhang C ( Key Laboratory of Fine Chemicals (Shandong Province), Qilu University of Technology, Jinan 250353, PR China.); Qiao C ( Key Laboratory of Fine Chemicals (Shandong Province), Qilu University of Technology, Jinan 250353, PR China.); Mu X ( Key Laboratory of Colloid and Interface Chemistry (Ministry of Education), Shandong University, Jinan 250100, PR China.); Li T ( Key Laboratory of Fine Chemicals (Shandong Province), Qilu University of Technology, Jinan 250353, PR China. Electronic address: litianduo@163.com.); Xu J ( Key Laboratory of Fine Chemicals (Shandong Province), Qilu University of Technology, Jinan 250353, PR China.); Shi L ( Key Laboratory of Fine Chemicals (Shandong Province), Qilu University of Technology, Jinan 250353, PR China.); Zhang D ( Key Laboratory of Colloid and Interface Chemistry (Ministry of Education), Shandong University, Jinan 250100, PR China. Electronic address: zhangdj@sdu.edu.cn.) |
| Abstract | N-[(2-Hydroxyl)-propyl-3-trimethyl ammonium] chitosan chloride (HTCC) was synthesized through nucleophilic substitution of 2,3-epoxypropyltrimethyl ammonium chloride (EPTAC) onto chitosan using ionic liquid of 1-allyl-3-methylimidazole chloride (AmimCl) as a homogeneous and green reaction media. The chemical structure of HTCC was confirmed by FTIR, (1)H NMR and (13)C NMR. The FTIR peak intensity of amino group at 1595 cm(-1) decreased and that of [Formula: see text] at 1475 cm(-1) increased with the increase of reaction time, confirming the substitution of EPTAC on CS. The degree of substitutions (DS) were calculated from the integral area of (1)H NMR, and the optimum reaction condition was obtained, namely, reaction time of 8h, temperature of 80°C and [Formula: see text] of 3/1. The degree of crystallinity and thermal properties of HTCC were characterized by XRD, TG, DSC, and DMA methods. Data from XRD, TG, DSC and DMA show that the degree of crystallinity, thermal stability, as well as glass transition temperature of HTCC decreased with the increase of DS. The reaction mechanism of chitosan with EPTAC in AmimCl was elucidated by performing density functional theory (DFT) calculations. |
| File Format | HTM / HTML |
| ISSN | 01448617 |
| Volume Number | 130 |
| e-ISSN | 18791344 |
| Journal | Carbohydrate Polymers |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2015-10-05 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Biochemistry__semicolon__materials Discipline Science Allyl Compounds Chemistry Chitosan Analogs & Derivatives Imidazoles Ionic Liquids Quaternary Ammonium Compounds Chemical Synthesis Magnetic Resonance Spectroscopy Spectroscopy, Fourier Transform Infrared X-ray Diffraction Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Materials Chemistry Polymers and Plastics |
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