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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Effects of the host molecular dynamics on the photoemission temperature dependence of host/guest photoluminescent blends

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Author(s):
Menezes, Durval Bertoldo [1] ; Curcino da Silva, Silesia de Fatima [1] ; Akcelrud, Leni [2] ; Atvars, Teresa Dib Zambon [3] ; Balogh, Debora Terezia [4] ; Mascarenhas, Yvonne Primerano [4] ; Marletta, Alexandre [1] ; Tozoni, Jose Roberto [1]
Total Authors: 8
Affiliation:
[1] Univ Fed Uberlandia, Inst Phys, POB 593, BR-38400902 Uberlandia, MG - Brazil
[2] Univ Fed Parana, Paulo Scarpa Polymer Lab, POB 19081, BR-81531990 Curitiba, Parana - Brazil
[3] Univ Estadual Campinas, Inst Chem, POB 6154, BR-13084971 Sao Paulo - Brazil
[4] Univ Sao Paulo, Inst Phys Sao Carlos, POB 369, BR-13560970 Sao Paulo - Brazil
Total Affiliations: 4
Document type: Journal article
Source: Polymer; v. 90, p. 132-137, MAY 4 2016.
Web of Science Citations: 5
Abstract

In the present paper, the photoemission temperature dependence of host/guest blends has been investigated. The polymers blend is composed by poly(n-alkyl metacrylate) (PnMA) as a host and poly {[}(9,9-dihexyl-9H-fluorene-2,7-diyl)-1,2-ethenediyl-1,4-phenylene-1,2-e thenediyl] (LaPPS16) as a guest. The PnMAs/LaPSS16 blends presented high homogeneity and photoemission temperature stability (T similar to 30-410 K). Moreover, the PnMA/LaPPS16 blends photoemission in function of sample temperature allowed access to the PnMA molecular relaxations temperatures. This was possible due to the strong interaction between the PnMA n-alkyl side groups and the LaPPS16 aliphatic groups. In addition, the blends films were characterized by Wide-angle X-ray Diffraction, optical absorbance, steady-state photoluminescence spectroscopy, Emission Ellipsometry, and Dynamic Mechanical Analysis. (C) 2016 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 13/16245-2 - Photophysical properties of thin films of conjugated polymers
Grantee:Teresa Dib Zambon Atvars
Support Opportunities: Regular Research Grants