MICROVISCOSITY OF AN ION-CONDUCTING POLYMER PROBED BY FLUORESCENCE DEPOLARIZATION AND DIELECTRIC SPECTROSCOPY
SCIE
SCOPUS
- Title
- MICROVISCOSITY OF AN ION-CONDUCTING POLYMER PROBED BY FLUORESCENCE DEPOLARIZATION AND DIELECTRIC SPECTROSCOPY
- Authors
- Jeon, S; Bae, SC; Turner, J; Granick, S
- Date Issued
- 2002-08
- Publisher
- ELSEVIER SCI LTD
- Abstract
- The local segmental motions of polypropylene oxide melt with variable amounts of added LiClO4 salt (0.3-2.2 mol% per repeat unit) were studied using dielectric relaxation spectroscopy and single photon counting methods after two-photon excitation of an unattached fluorescent dye, rhodamine123, embedded at low concentration within the polymer. The lithium ions serve as junctions between polymer chains and increase the bulk viscosity. The measured microviscosity contains information on the local environment of ClO4- ions. (C) 2002 Elsevier Science Ltd. All rights reserved.
- Keywords
- ion conducting polymer; dielectric spectroscopy; fluorescence depolarization; MOLECULAR-WEIGHT; ELECTROLYTES; RELAXATION; SURFACES; BEHAVIOR; LICLO4
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/28998
- DOI
- 10.1016/S0032-3861(02)00317-8
- ISSN
- 0032-3861
- Article Type
- Article
- Citation
- POLYMER, vol. 43, no. 17, page. 4651 - 4655, 2002-08
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- There are no files associated with this item.
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