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Synthesis, molecular and optical characterization of polycarbonates containing azobenzene side‐chains
Author(s) -
Lee JinKook,
Park SangWook,
Lee JaeWook,
Kim MiRa
Publication year - 2006
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.2019
Subject(s) - polycarbonate , azobenzene , materials science , diffraction efficiency , casting , diffraction , polymer chemistry , side chain , potassium carbonate , polymer , chemistry , optics , organic chemistry , composite material , optoelectronics , physics , grating
In this study, we report the synthesis and holographic characterization of polycarbonates containing an azobenzene group in their side‐chains. The polycarbonate (DR‐PC) was synthesized by the polyaddition reaction of Disperse Red 19 (DR 19) and carbon dioxide in N ‐methyl‐2‐pyrrolidone for 24 h in air, and we investigated the mechanism in the presence of potassium carbonate. The film of polycarbonate was obtained by casting onto a slide glass in N , N ‐dimethylformamide. The diffraction efficiency of the polycarbonate film was measured as a function of time and intensity of the induced laser. Independently of the intensity of the writing beam, the maximum diffraction efficiency in all DR‐PC films reached about 0.25%. Copyright © 2006 Society of Chemical Industry