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New Amorphous and Crystalline Complexes of Conjugated Aromatic Schiff Base Polymers

Published online by Cambridge University Press:  15 February 2011

Chen-Jen Yang  and
Samson A. Jenekhe
Chen-Jen Yang
Affiliation:
Department of Chemical Engineering, University of Rochester, Rochester, New York, 14627-0166
Samson A. Jenekhe
Affiliation:
Department of Chemical Engineering, University of Rochester, Rochester, New York, 14627-0166
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Abstract

New soluble amorphous and crystalline complexes of conjugated aromatic Schiff base polymers with diarylphosphates have been prepared and their molecular and electronic structures and morphology characterized by FTIR spectra, electronic absorption spectra, differential scanning calorimetry and x-ray diffraction. The diphenyl phosphate (DPP) or di-m-cresyl phosphate (DCP) complexes of the conjugated polyimines have electronic structures and optical properties that are dramatically different from the pure polymers due to the formation of polyiminium ions on complexation. At diarylphosphate : imine ratio equal to 0.50, amorphous materials are obtained whereas highly crystalline complexes are obtained at the stoichiometric ratio. The potential of complexation in modulating and enhancing the thirdorder nonlinear optical properties of this class of polymers is demonstrated.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 277: Symposium V – Macromolecular Host-Guest Complexes: Optical, Optoelectronic, and Photorefractive Properties and Applications , 1992 , 197
Copyright
Copyright © Materials Research Society 1992

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