Microscopic Orientational Order of Polymer Chains in Helical Polyacetylene Thin Films Studied by Confocal Laser Raman Microscopy

概要

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In order to study the internal structure of fibrils in helical polyacetylene thin films, we observed such films by confocal laser Raman microscopy (CLRM). The intensity of Raman signals depended greatly (${\sim}15$-fold at the most) on the polarization configuration of CLRM. We confirmed that fibrils in the films are composed of polyacetylene chains aligned along the long axes of the fibrils. We estimated the maximum value of the microscopic orientational order parameter, $\langle P_{2}\rangle$, to be 0.62. CLRM is a powerful tool for evaluating the microscopic orientation of conductive polymers with minimal sample preparation and high examination speed.
Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
2006-03-15