Effect of photo irradiation on the refractive indices of spirobenzopyran film

Eunkyoung Kim, Yun Ki Choi, Myung Hyun Lee, Sun Gyu Han, Sam Rock Keum

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Abstract

The effect of photo irradiation on the refractive index of spirobenzopyran (SP) polymer was investigated. Spirobenzopyran polymers were prepared by a radical polymerization using 6-(p-methacryloyloxy-hexyloxyphenyl)carbonylspirobenzopyran, styrene, and butylmethacrylate. Films with spirobenzopyran polymers showed color change from pale yellow to deep blue upon irradiation of a monochromatic light of 340 nm. The colored films were bleached either spontaneously or by light of 580 nm. The refractive index changes of the spirobenzopyran polymers were 5×10 -4 and 9×10 -4 for 20 wt% and 35 wt% of the spirobenzopyran content, respectively.

Original languageEnglish
Pages (from-to)S615-S617
JournalJournal of the Korean Physical Society
Volume35
Issue numberSUPPL. 2
Publication statusPublished - 1999 Dec 1

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Kim, E., Choi, Y. K., Lee, M. H., Han, S. G., & Keum, S. R. (1999). Effect of photo irradiation on the refractive indices of spirobenzopyran film. Journal of the Korean Physical Society, 35(SUPPL. 2), S615-S617.