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Proceedings Paper

Fourier transform infrared dichroism investigation of molecular orientation in model networks of poly(dimethylsiloxane)
Author(s): S. Besbes; L. Bokobza; L. Monnerie
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Paper Abstract

Segmental orientation in model networks of poly(dimethylsiloxane) PDMS in uniaxial tension are measured by infrared dichroism. Measurements are made on four tetrafunctional end- linked networks having molecular weights of 2000, 5000, 10,000, and 23,000 between junctions. The orientational function is shown to increase with cross-linking density. In the case of swollen samples, the orientational order parameter is found to increase with the degree of swelling. For a bimodal system consisting of two different molecular-weight species, the two types of chains tend to present the same orientational behavior.

Paper Details

Date Published: 1 March 1992
PDF: 2 pages
Proc. SPIE 1575, 8th Intl Conf on Fourier Transform Spectroscopy, (1 March 1992); doi: 10.1117/12.56408
Show Author Affiliations
S. Besbes, ESPCI (France)
L. Bokobza, ESPCI (France)
L. Monnerie, ESPCI (France)


Published in SPIE Proceedings Vol. 1575:
8th Intl Conf on Fourier Transform Spectroscopy

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