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Proceedings Paper

Solid state thermochromic behavior of a soluble polydiacetylene
Author(s): Alasdair J. Campbell; Craig K. L. Davies
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Paper Abstract

The polymer crystals of the soluble polydiacetylene 4BCMU are thermochromic. Four distinct phases have been identified: the low temperature, highly ordered, crystalline Blue Phase I; the high temperature, semi-disordered mixed phase consisting of the crystalline Red Phase II and liquid- crystalline Yellow Phase II; the low temperature, highly ordered, crystalline Red Phase III; and the highly disordered, amorphous Yellow Melt Phase. The structure of the crystals and the conformation of the backbone and sidegroups are reported. The structure of the phases in the solutions and solution-caste films are also identified.

Paper Details

Date Published: 11 October 1999
PDF: 13 pages
Proc. SPIE 3796, Organic Nonlinear Optical Materials, (11 October 1999); doi: 10.1117/12.368301
Show Author Affiliations
Alasdair J. Campbell, Queen Mary and Westfield College/Univ. of London and Univ. of Sheffield (United Kingdom)
Craig K. L. Davies, Queen Mary and Westfield College/Univ. of London (United Kingdom)


Published in SPIE Proceedings Vol. 3796:
Organic Nonlinear Optical Materials
Manfred Eich; Manfred Eich; Mark G. Kuzyk, Editor(s)

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