Glass transition and chain mobility in thin polymer films

We review recent work on the motion of polymer molecules confined to thin films. There has been considerable experimental evidence for large reductions in the glass transition temperature T g with decreasing film thickness, indicative of enhanced segmental motion, while the motion of entire molecule...

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Bibliographic Details
Published in:Journal of electroanalytical chemistry (1992) 2005-10, Vol.584 (1), p.13-22
Main Authors: Roth, Connie B., Dutcher, John R.
Format: Article
Language:English
Subjects:
Applied sciences
Chain mobility
Exact sciences and technology
Glass transition
Organic polymers
Physicochemistry of polymers
Polymer thin films
Properties and characterization
Structure, morphology and analysis
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Summary:We review recent work on the motion of polymer molecules confined to thin films. There has been considerable experimental evidence for large reductions in the glass transition temperature T g with decreasing film thickness, indicative of enhanced segmental motion, while the motion of entire molecules is essentially unchanged from that in bulk samples. General trends in the data are highlighted and outstanding issues are discussed.
ISSN:1572-6657
1873-2569
DOI:10.1016/j.jelechem.2004.03.003