An Analysis of Raman Spectra of Syndiotactic Polypropylenes. 2. Configurational Defects

Shaw Ling Hsu, Thomas Hahn, Wu Suen, Shuhui Kang, Howard D. Stidham, A. R. Siedle

Macromolecules · 2001 · 19 citations · 25 references

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Abstract

Raman spectra of syndiotactic polypropylenes of different stereoregularity are reported. Spectra for ordered and disordered structures of these polymers were simulated using a small number of parameters. The features that occur in the 300 and 400 cm -1 regions can be used to assess chain tacticity. A quantitative determination of the racemic content of polypropylene can be obtained from the Raman spectrum in the range of tacticity studied.

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