Synthesis and second harmonic generation studies of NLO-functionalized polyimides

Authors
Shim, HK Yoon, CB Woo, HY
Citation
Hk. Shim et al., Synthesis and second harmonic generation studies of NLO-functionalized polyimides, MACRO SYMP, 142, 1999, pp. 33-42
Citations number
24
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
MACROMOLECULAR SYMPOSIA
ISSN journal
10221360 → ACNP
Volume
142
Year of publication
1999
Pages
33 - 42
Database
ISI
SICI code
1022-1360(199908)142:<33:SASHGS>2.0.ZU;2-E
Abstract
Several NLO-functionalized polyimides were synthesized through novel synthe tic pathways and their NLO properties were characterized. For preventing th e disadvantage in poly(amic acid) precursor route, the Mitsunobu reaction a nd alternative synthetic route for NLO polyimides were chosen. The second-o rder NLO coefficients (chi((2))) of the synthesized polyimides were between 48pm/V and 122pm/V. The thermal stability of nonlinearity characterized sh owed that all polyimide films retain their NLO activities at temperatures b elow 100 degrees C.