화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korea-Australia Rheology Journal, Vol.22, No.1, 43-50, March, 2010
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Molecule-based electrorheological material assembled using β-cyclodextrin as substrate
Yan-Li Shang1, 2, Yun-Ling Jia1, 3, Yun Ma1, Jun-Ran Li1, †, Shao-Hua Zhang4, and Ming-Xiu Li3
  • 1Beijing National Laboratory for Molecular Science, (State Key Laboratory of Rare Earth Materials Chemistry andApplications), College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
  • 2Department of Chemistry, Hebei University, Baoding 071000, China
  • 3Department of Chemistry, Hebei Normal University, Shijiazhuang 050091, China
  • 4School of Vehicle and Transmission Engineering, Beijing Institute of Technology, Beijing 100081, China
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Molecule-based electrorheological (ER) materials as a novel type of ER materials, the inclusion compound [H2(β-CD-A)-PTA] between p-toluenesulfonic acid (PTA, guest) and H2(β-CD-A) (host) that is dicarboxylic acid of β-cyclodextrin (β-CD) , and the rare earth (RE) complexes [(β-CD-A)-PTA]3RE2 (RE=La, Gd, Y) of H2(β-CD-A)-PTA, were synthesized. The ER performance and dielectric property of the materials were studied. Our results show that the molecule-based ER materials assembled using β-cyclodextrin as a substrate, especially the inclusion compound and its rare earth (RE) complexes exhibit clear ER effect. The inclusion PTA can markedly enhance the ER performance of H2(β-CD-A) material. The ER activity of the yttrium complex is the highest among these materials. The characteristic of the molecule in molecule-based ER materials is an important factor in influencing ER property.
Keywords:electrorheological material;chemical synthesis;electrorheological property
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