[1]王林,辛梅华,李明春,等.催化氢化还原法制备的N,N-双烷基化壳聚糖[J].华侨大学学报(自然科学版),2019,40(3):350-355.[doi:10.11830/ISSN.1000-5013.201903029]
　WANG Lin,XIN Meihua,LI Mingchun,et al.N,N-Dialkylated Chitosan Made by Catalytic Hydrogenation Reduction[J].Journal of Huaqiao University(Natural Science),2019,40(3):350-355.[doi:10.11830/ISSN.1000-5013.201903029]
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催化氢化还原法制备的N,N-双烷基化壳聚糖()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第40卷
期数:
2019年第3期
页码:
350-355
栏目:
出版日期:
2019-05-20

文章信息/Info

Title:
N,N-Dialkylated Chitosan Made by Catalytic Hydrogenation Reduction
文章编号:
1000-5013(2019)03-0350-06
作者:
王林1; 2;  辛梅华1; 2;  李明春1; 2;  刘旭光1; 2;  周向恒1; 2
1. 华侨大学 材料科学与工程学院, 福建 厦门 361021;2. 华侨大学 环境友好功能材料教育部工程中心, 福建 厦门 361021
Author(s):
WANG Lin1; 2;  XIN Meihua1; 2;  LI Mingchun1; 2;  LIU Xuguang1; 2;  ZHOU Xiangheng1; 2
1. College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China; 2. Engineering Research Center of Environment-Friendly Functional Materials, Ministry of Education, Huaqiao University, Xiamen 361021, China
关键词:
壳聚糖;  催化氢化;  烷基化;  钯碳催化剂
Keywords:
chitosan;  catalytic hydrogenation;  alkylation;  palladium carbon catalyst
分类号:
O636.1
DOI:
10.11830/ISSN.1000-5013.201903029
文献标志码:
A
摘要:
以十二烷基磺酸钠为相转移剂,月桂醛与壳聚糖反应生成西夫碱,再通过钯碳(Pd/C)催化氢化还原西夫碱制备N,N-双十二烷基化壳聚糖衍生物.通过试验分析催化氢化反应时间、反应温度、Pd/C催化剂用量等因素对烷基化取代度的影响,并用元素分析、红外光谱、核磁共振氢谱等对产物进行表征.正交试验结果表明:催化氢化制备N,N-双十二烷基化壳聚糖的最佳催化氢化反应时间为24 h,反应温度为30 ℃,Pd/C催化剂的用量占壳聚糖总量的1%,制得的N,N-双十二烷基化壳聚糖的烷基化取代度为189%.
Abstract:
Sodium dodecyl sulfonate was used as the phase transfer agent to react lauraldehyde with chitosan to generate schiff base. Then N,N-dialkyl chitosan derivatives were prepared by palladium carbon(Pd/C)catalytic hydrogenation reduction of schiff base. The effects of catalytic hydrogenation reaction time, reaction temperature, Pd/C catalyst dosage on the degree of alkylation substitution were studied. The products were characterized by elemental analysis, infrared spectroscopy and 1H NMR spectroscopy. Orthogonal experiment results show that the best catalytic hydrogenation reaction conditions for the catalytic hydrogenation preparation of N,N-dialkyl chitosan are: reaction time 24 h, reaction temperature 30 ℃, Pd/C catalyst 1% of the total amount of chitosan. And the alkylation degree of N,N-dialkyl chitosan is 189%.

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备注/Memo

备注/Memo:
收稿日期: 2019-03-12
通信作者: 李明春(1962-),男,教授,博士,博士生导师,主要从事功能高分子材料的研究.E-mail:mcli@hqu.edu.cn.
基金项目: 福建省海洋高新产业发展专项项目(201522); 福建省自然科学基金资助项目(2016J01234); 华侨大学研究生科研创新基金资助项目(17013081026)
更新日期/Last Update: 2019-05-20