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High Glass Transition TemperatÜRe Electro-Optic Polymers

Published online by Cambridge University Press:  16 February 2011

Chengjiu Wu ,
Karl Beeson ,
Paul Ferm ,
Charles Knapp ,
Michael J. Mcfarland ,
Ajay Nahata ,
Jianhui Shan  and
James T. Yardley
Chengjiu Wu
Affiliation:
Alliedsignal Inc., Research And Technology, Morristown, Nj 07960
Karl Beeson
Affiliation:
Alliedsignal Inc., Research And Technology, Morristown, Nj 07960
Paul Ferm
Affiliation:
Alliedsignal Inc., Research And Technology, Morristown, Nj 07960
Charles Knapp
Affiliation:
Alliedsignal Inc., Research And Technology, Morristown, Nj 07960
Michael J. Mcfarland
Affiliation:
Alliedsignal Inc., Research And Technology, Morristown, Nj 07960
Ajay Nahata
Affiliation:
Alliedsignal Inc., Research And Technology, Morristown, Nj 07960
Jianhui Shan
Affiliation:
Alliedsignal Inc., Research And Technology, Morristown, Nj 07960
James T. Yardley
Affiliation:
Alliedsignal Inc., Research And Technology, Morristown, Nj 07960
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Abstract

Disperse Red-1 type chromophores were attached to the backbones of PMMA, polyvinyl-phenol as well as the styrene-Maleimide alternative copolymer and glass transition temperatures of these three polymer derivatives were in the range of 125, 165, and 245°C, respectively. We have also, for the first time, attached EO chromophores to some thermostable cardo-polymers. Fluorene derivatives in which the 2- and 7-positions were substituted with an electron accepting and an electron donating substitutem, respectively, were made polymerizable through their reactive functional groups at the 9,9′-positions. Various condensation polymers were prepared. These polymers are amorphous, film-forming, thermostable, and having Tg ranging from 150 to 300°C. These polymers exhibit strong electro-optic properties after electrode poling. Thermal stabilities of these polymers were compared by following the spectral decay of the chromophore and the decay of the electro-optic coefficient. The loss of EO activity at elevated temperature can be realized as a combination of chromophore reorientation and chemical degradation.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 328: Symposium Q – Electrical, Optical, and Magnetic Properties of Organic Solid State Materials , 1993 , 477
Copyright
Copyright © Materials Research Society 1994

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References

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