Steady shear viscosity measurements have been performed on 100 kDa poly(ethylene oxide) (PEO) dissolved in the protic ionic liquids ethylammonium nitrate (EAN) and propylammonium nitrate (PAN) and in water. The zero shear viscosity in all three solvents increases with polymer concentration, falling into three concentration regimes corresponding to dilute, semi-dilute and network solutions. Huggins plots reveal three distinct solvent conditions: good (water), good-theta (EAN) and theta (PAN). However, differences in the transition concentrations, power law behaviour of the viscosities, and relaxation times arising from shear thinning in the two ILs can be directly related to the effects of solvent nanostructure. (C) 2014 Elsevier Inc. All rights reserved.
机构:
Univ Fed Bahia UFBA, Escola Politecn, Programa Posgrad Engn Quim, BR-40210630 Salvador, BA, BrazilUniv Fed Bahia UFBA, Escola Politecn, Programa Posgrad Engn Quim, BR-40210630 Salvador, BA, Brazil
Santos, Dheiver
Costa, Fabio
论文数: 0引用数: 0
h-index: 0
机构:
Univ Fed Bahia UFBA, Escola Politecn, Programa Posgrad Engn Quim, BR-40210630 Salvador, BA, BrazilUniv Fed Bahia UFBA, Escola Politecn, Programa Posgrad Engn Quim, BR-40210630 Salvador, BA, Brazil
Costa, Fabio
Franceschi, Elton
论文数: 0引用数: 0
h-index: 0
机构:
Nucleo Estudos Sistemas Coloidais ITP UNIT, BR-49032490 Aracaju, SE, BrazilUniv Fed Bahia UFBA, Escola Politecn, Programa Posgrad Engn Quim, BR-40210630 Salvador, BA, Brazil
Franceschi, Elton
Santos, Alexandre
论文数: 0引用数: 0
h-index: 0
机构:
Nucleo Estudos Sistemas Coloidais ITP UNIT, BR-49032490 Aracaju, SE, BrazilUniv Fed Bahia UFBA, Escola Politecn, Programa Posgrad Engn Quim, BR-40210630 Salvador, BA, Brazil
Santos, Alexandre
Dariva, Claudio
论文数: 0引用数: 0
h-index: 0
机构:
Nucleo Estudos Sistemas Coloidais ITP UNIT, BR-49032490 Aracaju, SE, BrazilUniv Fed Bahia UFBA, Escola Politecn, Programa Posgrad Engn Quim, BR-40210630 Salvador, BA, Brazil
Dariva, Claudio
Mattedi, Silvana
论文数: 0引用数: 0
h-index: 0
机构:
Univ Fed Bahia UFBA, Escola Politecn, Programa Posgrad Engn Quim, BR-40210630 Salvador, BA, BrazilUniv Fed Bahia UFBA, Escola Politecn, Programa Posgrad Engn Quim, BR-40210630 Salvador, BA, Brazil
机构:
Univ Fed Bahia UFBA, Escola Politecn, Programa Posgrad Engn Quim, BR-40210630 Salvador, BA, BrazilUniv Fed Bahia UFBA, Escola Politecn, Programa Posgrad Engn Quim, BR-40210630 Salvador, BA, Brazil
Santos, Dheiver
Costa, Fabio
论文数: 0引用数: 0
h-index: 0
机构:
Univ Fed Bahia UFBA, Escola Politecn, Programa Posgrad Engn Quim, BR-40210630 Salvador, BA, BrazilUniv Fed Bahia UFBA, Escola Politecn, Programa Posgrad Engn Quim, BR-40210630 Salvador, BA, Brazil
Costa, Fabio
Franceschi, Elton
论文数: 0引用数: 0
h-index: 0
机构:
Nucleo Estudos Sistemas Coloidais ITP UNIT, BR-49032490 Aracaju, SE, BrazilUniv Fed Bahia UFBA, Escola Politecn, Programa Posgrad Engn Quim, BR-40210630 Salvador, BA, Brazil
Franceschi, Elton
Santos, Alexandre
论文数: 0引用数: 0
h-index: 0
机构:
Nucleo Estudos Sistemas Coloidais ITP UNIT, BR-49032490 Aracaju, SE, BrazilUniv Fed Bahia UFBA, Escola Politecn, Programa Posgrad Engn Quim, BR-40210630 Salvador, BA, Brazil
Santos, Alexandre
Dariva, Claudio
论文数: 0引用数: 0
h-index: 0
机构:
Nucleo Estudos Sistemas Coloidais ITP UNIT, BR-49032490 Aracaju, SE, BrazilUniv Fed Bahia UFBA, Escola Politecn, Programa Posgrad Engn Quim, BR-40210630 Salvador, BA, Brazil
Dariva, Claudio
Mattedi, Silvana
论文数: 0引用数: 0
h-index: 0
机构:
Univ Fed Bahia UFBA, Escola Politecn, Programa Posgrad Engn Quim, BR-40210630 Salvador, BA, BrazilUniv Fed Bahia UFBA, Escola Politecn, Programa Posgrad Engn Quim, BR-40210630 Salvador, BA, Brazil