Ultra-high-Tg chromophoric polyimides and polyureas as high-performance nonlinear optical materials

Lifeng Geng, Jiafu Wang, Tobin J Marks, Weiping Lin, Haitian Zhou, Paul M. Lunquist, George K. Wong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Three approaches to the construction of high-Tg polyimides and polyureas as second-order NLO materials are discussed. In the first approach, copolymerization of bismaleimides with o,o′-diallylbisphenol-A followed by functionalization with high-β NLO chromophores using a Mitsunobu procedure yields, after poling and curing, a series of heavily crosslinked chromophoric polyimides with Tg values as high as 320°C and partially resonant X(2) responses as high as 1.0×10-7 esu (42 pm/V at 1064 nm, 1.17 eV). In the second two approaches, copolymerization of the chromophore 4,5-bis(4′-aminophenyl)-2-(4″-nitrophenyl)imidazole with bismaleimides or diisocyanates yields polyimides and polyureas with Tg values as high as 292°C and partially resonant X(2) values as high as 0.62×10-7 esu(25 pm/V at 1064 nm). It is found that careful attention to the details of curing and crosslinking during poling results in NLO-active matrices exhibiting negligible decay in X(2) on aging in air at 100°C for periods of 1,000-4,000 h. The imidazole based materials exhibit only about 10% X(2) decay on aging for 100 h at 200°C under N2.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium - Proceedings
PublisherMaterials Research Society
Pages135-146
Number of pages12
Volume413
Publication statusPublished - 1996
EventProceedings of the 1995 MRS Fall Meeting - Boston, MA, USA
Duration: Nov 27 1995Dec 1 1995

Other

OtherProceedings of the 1995 MRS Fall Meeting
CityBoston, MA, USA
Period11/27/9512/1/95

Fingerprint

Optical materials
Polyimides
Chromophores
Copolymerization
Curing
Aging of materials
Crosslinking
Air
polyurea
imidazole

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Geng, L., Wang, J., Marks, T. J., Lin, W., Zhou, H., Lunquist, P. M., & Wong, G. K. (1996). Ultra-high-Tg chromophoric polyimides and polyureas as high-performance nonlinear optical materials. In Materials Research Society Symposium - Proceedings (Vol. 413, pp. 135-146). Materials Research Society.

Ultra-high-Tg chromophoric polyimides and polyureas as high-performance nonlinear optical materials. / Geng, Lifeng; Wang, Jiafu; Marks, Tobin J; Lin, Weiping; Zhou, Haitian; Lunquist, Paul M.; Wong, George K.

Materials Research Society Symposium - Proceedings. Vol. 413 Materials Research Society, 1996. p. 135-146.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Geng, L, Wang, J, Marks, TJ, Lin, W, Zhou, H, Lunquist, PM & Wong, GK 1996, Ultra-high-Tg chromophoric polyimides and polyureas as high-performance nonlinear optical materials. in Materials Research Society Symposium - Proceedings. vol. 413, Materials Research Society, pp. 135-146, Proceedings of the 1995 MRS Fall Meeting, Boston, MA, USA, 11/27/95.
Geng L, Wang J, Marks TJ, Lin W, Zhou H, Lunquist PM et al. Ultra-high-Tg chromophoric polyimides and polyureas as high-performance nonlinear optical materials. In Materials Research Society Symposium - Proceedings. Vol. 413. Materials Research Society. 1996. p. 135-146
Geng, Lifeng ; Wang, Jiafu ; Marks, Tobin J ; Lin, Weiping ; Zhou, Haitian ; Lunquist, Paul M. ; Wong, George K. / Ultra-high-Tg chromophoric polyimides and polyureas as high-performance nonlinear optical materials. Materials Research Society Symposium - Proceedings. Vol. 413 Materials Research Society, 1996. pp. 135-146
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