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Citation: Chen Wen, Xu Qing, Yuan Run-Zhang, Ren Hai-Lan, Yue Yong, Ye Chao-Hui. Study on the lonic Transport of Polymer-Lithium Exchanged Montmorlillonite Composites[J]. Acta Physico-Chimica Sinica, ;1999, 15(08): 704-708. doi: 10.3866/PKU.WHXB19990808 shu

Study on the lonic Transport of Polymer-Lithium Exchanged Montmorlillonite Composites

1.
Institute of Materials Science Engineering,State Key Laboratory of Advanced Techology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070

Received Date: 28 September 1998
Available Online: 15 August 1999

The effects of polymer chains on Li + ionic transport were investigated using NMR, AC impedance in polymer-montmorillonite composites synthesized by melt intercalation of polymer in lithium-exchanged montmorillonite. The results show that the intercalation of polymer(PEO) in montmorillonite increases the random arrangement of polymer chains Which is beneficial to the mobility of interlayer Li + ions. PMMA intercalation and modification of PEO with PMMA bring about more random arrangement of polymer chains which are more beneficial to Li + ionic transport. The ionic conductivity of composites is about 10-3 S•cm-1 at room temperature and there is od temperature stability of electrical properties.
- Polymer,
- Intercalation,
- Montmorillonite,
- Ionic transport
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