Molecule-based electrorheological material, a β-cyclodextrin derivative and its rare earth complexes

被引：9
|
作者：
Jia, Yun-Ling [1 ,2 ]
Huo, Li [4 ]
Ma, Yun [1 ]
Li, Jun-Ran [1 ]
Zhang, Shao-Hua [3 ]
Li, Ming-Xiu [2 ]
机构：
[1] Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China
[2] Hebei Normal Univ, Dept Chem, Shijiazhuang 050091, Peoples R China
[3] Beijing Inst Technol, Sch Vehicle & Transmiss Engn, Beijing 100081, Peoples R China
[4] Baoding Univ, Dept Chem, Baoding 071000, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 478卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
Electrorheological material; Chemical synthesis; Electrorheological property; FLUIDS; SUSPENSIONS;
D O I：
10.1016/j.jallcom.2008.11.087
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Molecule-based electrorheological (ER) materials as a novel type of ER materials, dicarboxylic acid [H-2(beta-CD-A)] of beta-cyclodextrin (beta-CD) and the rare earth (RE) complexes [(beta-CD-A)(3)(RE)(2)] (RE=Y, La, Gd) materials, were synthesized, the ER performance and dielectric property of the materials were studied. Our results show that these molecule-based ER materials exhibit clear ER effect. The ER performance of beta-CD can be enhanced with the formation of H-2(beta-CD-A) and RE complexes. The ER activity of the yttrium complex is the highest among these RE complexes. The dielectric property plays an important role in influencing the ER property of these materials. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：538 / 543
页数：6
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