Glass Transition and Relaxation Following PhotoPerturbation in Thin Polymeric Films

L. Cristofolini, S. Arisi, and M. P. Fontana
Phys. Rev. Lett. 85, 4912 – Published 4 December 2000
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Abstract

In this letter we employ null ellipsometry on Langmuir Blodgett multilayers of a glass forming photosensitive side chain polymer to investigate both the structural changes and the related time relaxation as a function of temperature and sample thickness following isothermal optical perturbation. Below a thickness of a few layers the glassy multilayer system collapses to a smecticlike crystal. This effect is discussed in the context of the glass transition in restricted dimensionality.

  • Received 11 May 2000

DOI:https://doi.org/10.1103/PhysRevLett.85.4912

©2000 American Physical Society

Authors & Affiliations

L. Cristofolini, S. Arisi, and M. P. Fontana

  • INFM and Physics Department, University of Parma, Parco Area delle Scienze 7/A, 43100 Parma, Italy

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Vol. 85, Iss. 23 — 4 December 2000

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