Glass transition temperature of polymer films forming polymeric lightguides

Martin Osterfeld; R. Thielmann; Hilmar Franke; P. Ambrovic; M. D. Lechner

doi:10.1117/12.139178

14 January 1993 Glass transition temperature of polymer films forming polymeric lightguides

Martin Osterfeld, R. Thielmann, Hilmar Franke, P. Ambrovic, M. D. Lechner

Proceedings Volume 1774, Nonconducting Photopolymers and Applications; (1993) https://doi.org/10.1117/12.139178
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

Using index matched polymer lightguides the optical anisotropy of planar polymer films is measured with an accuracy (Delta) (Nu) <EQ 10^-5. The investigation is performed with heated guides in the range of 40 degree(s)C to 110 degree(s)C. An anomaly of (Delta) (Nu) (T) at the glass transition is found. This method may be used for the determination of the glass transition of films in the thickness range of optical lightguides.

Citation Download Citation

Martin Osterfeld, R. Thielmann, Hilmar Franke, P. Ambrovic, and M. D. Lechner "Glass transition temperature of polymer films forming polymeric lightguides", Proc. SPIE 1774, Nonconducting Photopolymers and Applications, (14 January 1993); https://doi.org/10.1117/12.139178

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