Light scattering by fractons in polymers

V. K. Malinovsky, V. N. Novikov, A. P. Sokolov, V. A. Bagryansky

Research output: Contribution to journalArticlepeer-review

40 Scopus citations

Abstract

In amorphous polymers (PMMA and PS) the low-frequency mode in Raman spectra is found to be dependent on frequency according to a power law. The exponent depends on the thermal history of the sample. The results obtained are explained in terms of a fracton description of localized vibrations. The spectral dimension of the vibrational excitations and the size of the fractal region in the investigated polymers are found to be 1.40 and 40 Å, respectively.

Original languageEnglish
Pages (from-to)111-114
Number of pages4
JournalChemical Physics Letters
Volume143
Issue number1
DOIs
StatePublished - Jan 1 1988
Externally publishedYes

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