R.D. Miller, D.M. Burland, et al.
Molecular Crystals and Liquid Crystals Science and Technology Section B: Nonlinear Optics
The thermal stability of the electric field induced poled order in a new class of second-order optically nonlinear polymers, "donor-imbedded" side-chain polyimides containing no flexible connectors or tethers to the nonlinear optical (NLO) chromophore, is investigated. In these polymers, the electron-donor part of the chromophore is a diaryl-substituted amine that is incorporated as a part of the polymer backbone. The donor-imbedded systems used in this study have exceptional chemical stabilities at elevated temperatures (350°C) and impressive poled order stability at extremely high temperatures (300°C). In both respects, they were significantly more stable than a true side-chain polyimide with a similar NLO-active chromophore covalently linked to the polymer backbone by a flexible tether group.
R.D. Miller, D.M. Burland, et al.
Molecular Crystals and Liquid Crystals Science and Technology Section B: Nonlinear Optics
Felix Grawert, Sebastian Kobras, et al.
SPIE Optical Science and Technology 2000
Ruediger Wortmann, C. Poga, et al.
Journal of Chemical Physics
R.D. Miller, D.M. Burland, et al.
Macromolecules