Photo-controlled phase separation and mixing of a mixture of water and 2-butoxyethanol caused by photochromic isomerisation of spiropyran

Shinji Kajimoto, Ayaka Mori, Hiroshi Fukumura

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Photo induced phase separation of a mixture of water and 2-butoxyethanol, in which spiropyran was dissolved as a photoresponsive molecule, was investigated. It was found that the phase separation temperature of the merocyanine (MC) form solution was higher than that of the spiropyrane (SP) form; therefore phase separation was induced by visible light irradiation to the solution which caused the photoisomerization from the MC form to the SP form. The system also exhibits reversible photoinduced phase mixing by irradiation of UV light. The photo-chemical phase separation was also induced by the nanosecond laser pulse irradiation and the dynamics of the phase domain growth were studied.

Original languageEnglish
Pages (from-to)208-212
Number of pages5
JournalPhotochemical and Photobiological Sciences
Volume9
Issue number2
DOIs
Publication statusPublished - 2010

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Fingerprint Dive into the research topics of 'Photo-controlled phase separation and mixing of a mixture of water and 2-butoxyethanol caused by photochromic isomerisation of spiropyran'. Together they form a unique fingerprint.

Cite this