Raman spectra of Langmuir-Blodgett and Langmuir-Schaefer films of polydiacetylene prepared from 10,12-pentacosadiynoic acid

Keisuke Seto, Yoshinobu Hosoi, Yukio Furukawa

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    23 Citations (Scopus)

    Abstract

    Blue polydiacetylene films were prepared from the Langmuir-Schaefer (LS) and Langmuir-Blodgett (LB) films of the cadmium salt of 10,12-pentacosadiynoic acid, CH3(CH2)11{single bond}C{triple bond, long}C{single bond}C{triple bond, long}C{single bond}(CH2)8COOH, and the C{triple bond, long}C stretching modes of the Raman spectra of the LS and LB films were observed at 2068 and 2079 cm-1, respectively. These wavenumbers appeared to be sensitive to the packing of polymer chains. Most of the progression bands observed in the range of 1332-1182 cm-1 have been assigned to the CH2 wagging modes of the all-trans structure of the (CH2)11CH3 group.

    Original languageEnglish
    Pages (from-to)328-332
    Number of pages5
    JournalChemical Physics Letters
    Volume444
    Issue number4-6
    DOIs
    Publication statusPublished - 2007 Aug 27

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    ASJC Scopus subject areas

    • Physical and Theoretical Chemistry
    • Spectroscopy
    • Atomic and Molecular Physics, and Optics
    • Surfaces and Interfaces
    • Condensed Matter Physics

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