Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/41850
標題: Enhanced temporal stability of an NLO polyurethane via a two-dimensional chromophore
作者: Kuo, W.J.
鄭如忠
Hsiue, G.H.
Jeng, R.J.
關鍵字: nonlinear-optical polymers
main-chain
2nd-harmonic generation
photorefractivity
polyesters
polyimides
phores
films
dye
期刊/報告no:: Macromolecular Rapid Communications, Volume 22, Issue 8, Page(s) 601-606.
摘要: A new NLO-active polyurethane (T-g = 145 degreesC) based on a two-dimensional NLO chromophore has been investigated. Two ends of this lambda-shaped chromophore can be directly bound to the main chain of polyurethane. After poling, fast relaxation of the effective second harmonic (SH) coefficient was observed at temperatures higher than 122 degreesC. Moreover, excellent temperatures higher than 122 degreesC. Moreover, excellent temporal stability at 100 degreesC was obtained despite the operating temperature being very close to the fast relaxation temperature. This is due to the fact that embedding the rigid lambda-shaped chromophores into the polymer backbone effectively restricts molecular motion at temperatures close to T-g.
URI: http://hdl.handle.net/11455/41850
ISSN: 1022-1336
文章連結: 2-n
http://dx.doi.org/10.1002/1521-3927(20010501)22:8<601::aid-marc601>3.0.co
Appears in Collections:化學工程學系所

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