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Improving photo-stability of conjugated polymer MEH-PPV embedded in solid matrices by purification of the matrix polymer

Tian, Yuxi LU ; Sheinin, Vladimir ; Kulikova, Olga ; Mamardashvili, Nugzar and Scheblykin, Ivan LU orcid (2014) In Chemical Physics Letters 599. p.142-145
Abstract
For single molecule spectroscopy (SMS), molecules under study are usually immobilized in a polymer matrix e. g. poly(methyl methacrylate). We show a very significant improvement of the conjugated polymer MEH-PPV photo-stability and decrease of the luminescence impurities concentration when the matrix is purified. We identify benzoyl peroxide (a common radical initiator) as a possible oxidizing agent which residuals in the polymer matrix destroy MEH-PPV. These results show that purification and selection of a matrix obtained by radical-free synthetic technique are of great importance for SMS as well as other technologies using polymer matrices as hosts for light-emitting materials. (C) 2014 Elsevier B. V. All rights reserved.
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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Chemical Physics Letters
volume
599
pages
142 - 145
publisher
Elsevier
external identifiers
  • wos:000334512400025
  • scopus:84898069857
ISSN
0009-2614
DOI
10.1016/j.cplett.2014.03.030
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Chemical Physics (S) (011001060)
id
58ddb6d9-8d57-46c7-b157-d5d8f3b51ac5 (old id 4488471)
date added to LUP
2016-04-01 14:46:13
date last changed
2022-03-14 07:43:40
@article{58ddb6d9-8d57-46c7-b157-d5d8f3b51ac5,
  abstract     = {{For single molecule spectroscopy (SMS), molecules under study are usually immobilized in a polymer matrix e. g. poly(methyl methacrylate). We show a very significant improvement of the conjugated polymer MEH-PPV photo-stability and decrease of the luminescence impurities concentration when the matrix is purified. We identify benzoyl peroxide (a common radical initiator) as a possible oxidizing agent which residuals in the polymer matrix destroy MEH-PPV. These results show that purification and selection of a matrix obtained by radical-free synthetic technique are of great importance for SMS as well as other technologies using polymer matrices as hosts for light-emitting materials. (C) 2014 Elsevier B. V. All rights reserved.}},
  author       = {{Tian, Yuxi and Sheinin, Vladimir and Kulikova, Olga and Mamardashvili, Nugzar and Scheblykin, Ivan}},
  issn         = {{0009-2614}},
  language     = {{eng}},
  pages        = {{142--145}},
  publisher    = {{Elsevier}},
  series       = {{Chemical Physics Letters}},
  title        = {{Improving photo-stability of conjugated polymer MEH-PPV embedded in solid matrices by purification of the matrix polymer}},
  url          = {{http://dx.doi.org/10.1016/j.cplett.2014.03.030}},
  doi          = {{10.1016/j.cplett.2014.03.030}},
  volume       = {{599}},
  year         = {{2014}},
}