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Synthesis and nonlinear optical properties of high glass transition polyimides
Author(s) -
Van den Broeck Kurt,
Verbiest Thierry,
Van Beylen Marcel,
Persoons André,
Samyn Celest
Publication year - 1999
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/(sici)1521-3935(19991201)200:12<2629::aid-macp2629>3.0.co;2-k
Subject(s) - glass transition , chromophore , polymer , nonlinear optical , mitsunobu reaction , polymer chemistry , second harmonic generation , side chain , covalent bond , materials science , nonlinear optics , polyimide , chemical engineering , chemistry , nonlinear system , photochemistry , organic chemistry , composite material , optics , laser , physics , quantum mechanics , engineering , layer (electronics)
Nonlinear optical (NLO) polymers with glass transition temperatures ( T g ) as high as 275°C were prepared by covalent bonding of a chromophore to the backbone of hydroxyl polyimides via a Mitsunobu reaction. NLO side‐chain polyimides with different polymer backbones and different chromophores were prepared and characterized by second‐harmonic generation. Poled films of the polymers have an excellent nonlinear optical response that is stable at elevated temperatures.