New polyurethane for second-order nonlinear optics

Han Young Woo, Kwang Sup Lee, Hong Ku Shim

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


An NLO-functionalized polyurethane with a highly nonlinear heteroaromatic thiophene chromophore having a tricyanovinyl group was synthesized and characterized. Heteroaromatics such as thiophene are expected to exhibit high nonlinear activity due to the lower delocalization energy relative to the benzene derivatives. It showed high second-order nonlinearity with a SHG coefficient, d33=51 pm/V. In addition, the high thermal stability of the aligned dipoles was observed up to 150°C without any measurable decay. This good stability was originated from the polymer backbone rigidity caused by the effective inter-chain hydrogen bridges between neighboring the polyurethane chains.

Original languageEnglish
Pages (from-to)1095-1096
Number of pages2
JournalAmerican Chemical Society, Polymer Preprints, Division of Polymer Chemistry
Issue number2
Publication statusPublished - 1998 Aug
Externally publishedYes
EventProceedings of the 1997 Boston Meeting - Boston, MA, USA
Duration: 1998 Aug 231998 Aug 27

ASJC Scopus subject areas

  • Polymers and Plastics


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