English, Article edition: SPECTROSCOPIC CHARACTERIZATIONS OF NONAMPHIPHILIC 2,5-BIS (5-TERT-BUTYL-BENZOXAZOLYL)-THIOPHENE MOLECULES AT THE AIRâWATER INTERFACE AND IN LANGMUIRâBLODGETT FILMS S. BISWAS; SYED ARSHAD HUSSAIN; D. BHATTACHARJEE

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Bookmark: http://trove.nla.gov.au/version/84764
Physical Description
  • article
Language
  • English

Edition details

Title
  • SPECTROSCOPIC CHARACTERIZATIONS OF NONAMPHIPHILIC 2,5-BIS (5-TERT-BUTYL-BENZOXAZOLYL)-THIOPHENE MOLECULES AT THE AIRâWATER INTERFACE AND IN LANGMUIRâBLODGETT FILMS
Author
  • S. BISWAS
  • SYED ARSHAD HUSSAIN
  • D. BHATTACHARJEE
Physical Description
  • article
Notes
  • This paper reports the ÏâA isotherm and spectroscopic characterizations of mixed Langmuir and LangmuirâBlodgett films of a nonamphiphilic thiophene derivative, namely, 2,5-Bis (5-tert-butyl-benzoxazolyl)-thiophene (BBOT) molecules, mixed with polymethyl methacrylate (PMMA) and stearic acid (SA). The ÏâA isotherms and molefraction vs. area per molecule studies indicate some repulsive interaction between sample (BBOT) and matrix (PMMA or SA) molecules. At higher surface pressure in the SA mixed BBOT Langmuir monolayer, a phase transition occurs, which has been revealed by ÏâA isotherm studies. UV-vis absorption and fluorescence spectroscopic studies confirm this phase transition and closer association of BBOT molecules. Spectroscopic studies of LB films lifted at higher surface pressure clearly confirm the presence of dimmers and higher-order n-meric sites.
  • Nonamphiphilic, LangmuirâBlodgett films, UV-vis absorption and fluorescence spectroscopy
  • RePEc:wsi:srlxxx:v:15:y:2008:i:06:p:889-896
Language
  • English
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