DSpace

RI UFBA >
Instituto de Ciências Ambientais e Desenvolvimento Sustentável - ICADS >
Artigos Publicados em Periódicos (ICADS) >

Please use this identifier to cite or link to this item: http://repositorio.ufba.br/ri/handle/ri/18092

Title: Cellulose acetate-poly{[9,9-bis(6′-N,N,N-trimethylammonium)hexyl]fluorene-phenylene} bromide blends: Preparation, characterization and transport properties
Other Titles: Reactive and Functional Polymers
Authors: Cerqueira, D.
Valente, A. J. M.
Burrows, H. D.
Gomes, J. N. P. L.
Pereira, R. F. P.
Jiménez, A.
Burgos, N.
Morán, C.
Mallavia, R.
R. Filho, G.
Keywords: Cellulose acetate;Polyfluorene;Conjugated polyelectrolyte;Polymerization degree;Blend
Issue Date: 2012
Abstract: The preparation of cellulose acetate-poly-(9,9-bis(6′-N,N,N trimethylammonium)-hexyl-fluorene phenylene) bromide (HTMA-PFP) blend films by solvent casting from a dispersion is reported. Films were characterized by UV–visible spectroscopy, SEM, electrical conductivity, TGA and DSC. It was found that morphological and physical chemical properties of blends were dependent both on the solvent and the degree of polymerization of cellulose acetate. The fluorescence properties of different blends were evaluated by fluorescence microscopy and it was shown that they are dependent on the structural properties of the blend as well as the aggregation level of the polyfluorene. Release kinetics of HTMA-PFP, incorporated into blend films, in SDS aqueous solutions have been studied and are discussed on the basis of the Korsmeyer–Peppas equation.
Description: Texto completo: acesso restrito. p. 420–426
URI: http://repositorio.ufba.br/ri/handle/ri/18092
ISSN: 1381-5148
Appears in Collections:Artigos Publicados em Periódicos (ICADS)

Files in This Item:

File Description SizeFormat
D. Cerqueira.pdf889.8 kBAdobe PDFView/Open
View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

    Universidade Federal da Bahia

Contate-nos. Saiba mais sobre o RI/UFBA