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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 19, Number 7
BKCSDE 19(7)
July 20, 1998

Title	Second-Order Optical Nonlinearity of a Polyamide derived from 4,4'-[Hexafluoroisopropylidene]dianiline and 4-[N,N-Bis(2-carboxyethyl)] amino-4'-nitrostilbene
Author	Young-Wun Kin, Jung-Il Jin
Keywords
Abstract	A new polyamide was prepared from 4,4'-(hexafluoroisopropylidene)di-aniline and 4-[NN-bis(2-carboxyethyl)] amino-4'-nitrostilbene. This polymer was cast into thin films by spin coating cyclohexanone solution. After being poled, the electro-optic coefficients of electrode poled polymer films were measured by the reflection measurement technique using an incident laser beam of 1.3 Jim. The film poled at the field strength of 1.2 V/μm exhibited the electro-optic coefficient (r33) of 5.9 pm/V. The relaxation behavior of the poled polymer film was compared with other reported polymers bearing the same NLO chromophores. Due to stiff and highly polar nature of the backbone and also due to formation of interchain hydrogen bonds, this polymer reveals a slower relaxation characteristics. The polymer is amorphous and soluble in various organic solvents.
Page	738 - 742
Full Text	PDF

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