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[1]伍双全,胡昊泽,刘治田*,等.一种聚羧酸系减水剂的合成与性能[J].武汉工程大学学报,2011,(07):9-13.
 ZHANG Qiao,YAN Guoping,CHENG Sixue.Preparation of alginate hydrogels via “click” chemistry[J].Journal of Wuhan Institute of Technology,2011,(07):9-13.
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一种聚羧酸系减水剂的合成与性能(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2011年07期
页码:
9-13
栏目:
材料科学与工程
出版日期:
2011-08-30

文章信息/Info

Title:
Preparation of alginate hydrogels via “click” chemistry
文章编号:
16742869(2011)07000905
作者:
伍双全1胡昊泽2刘治田1*刘艳娇1於国伟1黄卉芬1张林骅1
1.武汉工程大学材料科学与工程学院,湖北 武汉 430074;
2.武汉大学化学与分子科学学院,湖北 武汉 430072
Author(s):
ZHANG Qiao1 YAN Guoping1 CHENG Sixue2
1. School of Material Science and Engineering, Wuhan Institute of Technology, Wuhan 430074, China;
2.? Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry,
Wuhan University, Wuhan 430072, China
关键词:
聚羧酸系减水剂合成性能 混凝土添加剂
Keywords:
click chemistry alginate hydrogels swelling biomaterials
分类号:
TB333; O646.542
DOI:
-
文献标志码:
AAdoi:10.3969/j.issn.16742869.2011.07.003
摘要:
设计采用两步聚合法,即先通过一定分子质量的聚乙二醇(PEG)与丙烯酸(AA)在一定条件下发生酯化反应形成高分子大单体—聚乙二醇丙烯酸酯(PEGA),然后在水溶液中通过引发剂、PEGA和丙烯酸、甲基丙烯磺酸钠(MAS)发生共聚反应合成聚羧酸系减水剂.采用单因素变量试验法,分别研究了单体比例、引发剂用量、聚合温度、聚合时间及加料方式对聚合物性能的影响,从而得出合成聚羧酸系高性能减水剂的一种最佳工艺,并对试制产品进行了性能测试.结果表明:聚羧酸系减水剂具有优良的分散性能,能较长时间地保持水泥浆的流动性.
Abstract:
Alginate derivatives bearing side chains endowed with either azide or alkyne terminal functionality have been synthesized. When the solutions of tow derivatives were mixed together in the presence of Cu (I) catalyst, the alginate hydrogels were formed by the click chemistry between azide and alkyne. The chemical structures of the alginate derivatives and hydrogels were characterized by FTIR. The results of SEM and swelling behavior exhibited that the hydrogels had a macroporous structure as well as pH responsive. In comparison to other methods of preparation alginate hydrogels via chemical crosslinks, this strategy is quicker and more convenience.

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