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Proceedings Paper

Obtaining and properties of Langmuir-Blodgett films of amphiphilic polyampholyte activated by rhodamine dye
Author(s): S. A. Yeroshina; N. Kh. Ibrayev; S. E. Kudaibergenov
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Paper Abstract

The conditions of obtaining and spectral-luminescence properties of mixed Langmuir-Blodgett (LB) films of the new regular polyampholyte modified with octadecyl chains and two amphiphilic fluorophores (I and II - rhodamine dyes) were investigated. On the basis of conformational molecule analysis in force field MM2 the models of the dyes molecule and polymer repeat unit orientations at the water-air interface and LB films architecture have been offered. It was found that dye aggregation took place in the densely packed multilayer films, which appeared in absorption and fluorescence spectra. Assumption was made about structure of aggregates. It was established that LB films, for which the ratio of dye and polymer was 17:83 mol%, had the highest fluorescence quantum yield.

Paper Details

Date Published: 31 May 2006
PDF: 6 pages
Proc. SPIE 6263, Atomic and Molecular Pulsed Lasers VI, 62630E (31 May 2006); doi: 10.1117/12.677398
Show Author Affiliations
S. A. Yeroshina, Karaganda State Univ. (Kazakhstan)
N. Kh. Ibrayev, Karaganda State Univ. (Kazakhstan)
S. E. Kudaibergenov, Institute of Polymer Materials and Technology (Kazakhstan)

Published in SPIE Proceedings Vol. 6263:
Atomic and Molecular Pulsed Lasers VI
Victor F. Tarasenko; Georgy Mayer; Gueorgii G. Petrash, Editor(s)

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