Molecular and anionic polymer and oligomer systems with microdecoupled conductivities

We describe two different approaches to the problem of decoupling ions in polymer electrolytes from the chain segmental motions in order to obtain high conductivities even close to the glass transition temperature. In one of the two, the ions are also decoupled from each other so that single ion con...

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Bibliographic Details
Published in:Electrochimica acta 2000-01, Vol.45 (8), p.1229-1236
Main Authors: Zhang, Shengshui, Chang, Zheng, Xu, Kang, Angell, C.Austen
Format: Article
Language:English
Subjects:
Applied sciences
Chemistry
Decoupling
Electrochemistry
Exact sciences and technology
General and physical chemistry
Glass transition
Microdecoupled conductivity
Oligomer systems
Organic polymers
Physicochemistry of polymers
Polyanion conductors
Polymers
Properties and characterization
Properties of electrolytes: conductivity
Sidechain dipoles
Solution and gel properties
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Summary:We describe two different approaches to the problem of decoupling ions in polymer electrolytes from the chain segmental motions in order to obtain high conductivities even close to the glass transition temperature. In one of the two, the ions are also decoupled from each other so that single ion conducting materials can be obtained. The first method involves the use of polymeric anions while the second uses side-chain secondary relaxation as the principle behind the fast motion. Neither principle is new but the performance seems to be quite good in the cases described.
ISSN:0013-4686
1873-3859
DOI:10.1016/S0013-4686(99)00385-0