標題: Investigating the effect of miscibility on the ionic conductivity of LiClO4/PEO/PCL ternary blends
作者: Chiu, CY
Chen, HW
Kuo, SW
Huang, CF
Chang, FC
應用化學系
Department of Applied Chemistry
公開日期: 2-十一月-2004
摘要: We demonstrate that miscibility affects the ionic conductivity of ternary polymer blends of lithium perchlorate (LiClO4), poly(ethylene oxide) (PEO), and poly(E-caprolactone) (PCL). Although individually these three binary blends are fully miscible, a closed immiscibility loop exists in the ternary blend phase diagram as a result of the complicated interactions among LiClO4, PEO, and PCL. The addition of PCL suppresses the crystallization of PEO and results in higher ionic conductivity. FTIR spectroscopy studies indicate that an excess PCL content causes immiscibility, which results in PCL being excluded from the ternary blends. Consequently, the maximum ionic conductivity (6.3 x 10(-7) S cm(-1)) at ambient temperature of ternary blends having a fixed LiClO4 content (25 wt %) is at a composition of 25/60/15 (LiClO4:PEO:PCL).
URI: http://dx.doi.org/10.1021/ma0488156
http://hdl.handle.net/11536/25652
ISSN: 0024-9297
DOI: 10.1021/ma0488156
期刊: MACROMOLECULES
Volume: 37
Issue: 22
起始頁: 8424
結束頁: 8430
顯示於類別:期刊論文


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