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Digitale Medien

Electron spin resonance studies of spin-labeled polymers. IV. Slow-motional effects in solid polystyrene (1973)

Bullock, A. T. ; Cameron, G. G. ; Smith, P. M.

New York : Wiley-Blackwell

Journal of Polymer Science: Polymer Physics Edition 11 (1973), S. 1263-1269

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Details

ISSN: 0098-1273

Schlagwort(e): Physics ; Polymer and Materials Science

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie , Physik

Notizen: Shape changes in the electron spin resonance spectrum of spin-labeled polystyrene have been studied as a function of temperature in the range 77-340°K. Rotational correlation times have been calculated by using recent theories of slow-motional effects on ESR spectra. Three models were used, namely, Brownian, moderate jump diffusion, and large jump diffusion. The moderate jump model gave correlation times in good accord with those found by other techniques for the δ relaxation in polystyrene. The relaxation was found to be independent of molecular weight.

Zusätzliches Material: 5 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/pol.1973.180110702

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