Stability control of the electrooptic effect with new maleimide copolymers containing photoreactive tricyanopyrrolidene-based chromophores

作者：Lee Sang Kyu; Cho Min Ju; Jin Jung Il; Choi Dong Hoon^*

来源：Journal of Polymer Science Part A: Polymer Chemistry , 2007, 45(3): 531-542.

DOI：10.1002/pola.21887

• chalcone
• crosslinking
• cycloaddition
• electrooptic effect
• NLO
• optics
• photocrosslinkable chromophores
• synthesis
• thermal stability
• tricyanopyrrolidene chromophores

New photocrosslinkable maleimide copolymers have been synthesized by the attachment of a tricyanopyrrolidene-based chromophore. The 243-cyano-442-14[hexyl-(6-hydroxy-hexyl)-aminol-phenyl]-vinyl)-5-oxo-1-{4-[4-(3-oxo-3-phenyl-propenyl)- phenoxy-butyl}-1,5-dihydro-pyrrol-2-ylidene)-malononitrile chromophore exhibits nonlinear optical activity and contains a chalcone moiety that is sensitive to UV light (lambda). = 330-360 nm) for crosslink formation. The maleimide monomers have also been functionalized. with chalcone moieties. The resultant copolymers exhibit great processability, and one of them shows a maximum electrooptic coefficient of 90 pm/V at 1300 nm. We could control the thermal stability of the electrooptic coefficient with the newly synthesized photoreactive copolymers successfully.

• 出版日期2007-2-1