Abstract
Oriented conjugated segments embedded in polyvinylidene-chloride (PVDC) were prepared by thermal degradation of PVDC-films under applied mechanical stress. These samples exhibit stable optical properties while stored in air in contrast to the oxidative instability of pure polyacetylene. Transmission spectra in the visible range show highly anisotropic properties even at low concentration of conjugated bonds. Distinct oscillatory behavior of the absorption of light polarized perpendicular to the stretching direction is observed and the positions of the extrema are extrapolated to infinite conjugation length assuming a simple model. A comparison with optical data for dense trans-(CH) x films yields an average conjugation length of n = 36 for oriented crystalline trans-(CH) x-films and n = 11–14 for amorphous trans-(CH) x films.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
