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NLO‐polymers containing tert ‐butyloxycarbonyl protecting groups: Modification after processing leading to thermally stable nonlinear optical materials
Author(s) -
Dörr Michael,
Zentel Rudolf,
Sprave Martin,
Vydra Jan,
Eich Manfred
Publication year - 1997
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.19970090307
Subject(s) - poling , materials science , chromophore , polymer , nonlinear optical , glass transition , nonlinear optics , isotropy , side chain , spin coating , second harmonic generation , imide , coating , polymer chemistry , nonlinear system , chemical engineering , optoelectronics , photochemistry , nanotechnology , optics , composite material , chemistry , physics , engineering , quantum mechanics , dielectric , ferroelectricity , laser
A new polymer for nonlinear optics (NLO) based on male‐imide/methylvinyliscocyanate precursor polymers is introduced. This side‐chain copolymer is cured after spin‐coating and before poling, which, by a thermally activated fragmentation reaction, leads to increased glass transition temperature, increased density of NLO chromophores, and reduced solubility. NLO materials will play an important role in optical telecommunications, but the problem of the chromophores relaxing back into the isotropic state must first be solved.