In situ monitoring of photo-cross-linking reaction of anthracene chromophores in polymer Langmuir-Blodgett films by an integrated optical waveguide technique

Masaya Mitsuishi, Tomohiro Tanuma, Jun Matsui, Jinfeng Chen, Tokuji Miyashita

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)

Abstract

This paper focuses on waveguide technique versatility for direct observation of photochemical reactions in polymer ultrathin films. Monolayers from the copolymer of 9-anthrylmethyl methacrylate (AMMA) with neopentyl methacrylamide (nPMA) were deposited on a tapered quartz waveguide by the Langmuir-Blodgett (LB) technique, and spectroscopic properties of the copolymer (p(nPMA-AMMA)) monolayer were precisely monitored by an integrated optical waveguide technique. Magnitude of absorbance increased by a factor of 200, compared with transmission UV-vis spectroscopy. Consequently, a photo-cross-linking reaction of p(nPMA-AMMA) LB films was characterized easily and very accurately as a function of irradiation time.

Original languageEnglish
Pages (from-to)7449-7451
Number of pages3
JournalLangmuir
Volume17
Issue number24
DOIs
Publication statusPublished - 2001 Nov 27

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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