Interfacial properties of polyelectrolyte complexes incorporating kraft lignin 10 th EWLP, Stockholm, Sweden, August 25–28, 2008

Interfacial properties of polyelectrolyte complexes incorporating kraft lignin 10 th EWLP,... Surface tension of kraft lignin (KL) and KL/poly(N,N-dimethylaminoethyl methacrylate) mixtures, with different composition at the air-water interface depending on pH and temperature, was measured. It was found that the surface activity of both KL and the reaction mixtures grows with decreasing pH and increasing temperature. At the same time, the surface activity of the KL/poly(N,N-dimethylaminoethyl methacrylate) reaction mixture, irrespective of its composition under the same environment conditions, considerably exceeds the surface activity of KL, indicating the synergetic effect governed by the peculiarities of the polymeric structure of the formed soluble particles of the polyelectrolyte complex. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Holzforschung - International Journal of the Biology, Chemistry, Physics and Technology of Wood de Gruyter

Interfacial properties of polyelectrolyte complexes incorporating kraft lignin 10 th EWLP, Stockholm, Sweden, August 25–28, 2008

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Publisher
de Gruyter
Copyright
©2009 by Walter de Gruyter Berlin New York
Subject
Original Papers
ISSN
0018-3830
eISSN
1437-434X
DOI
10.1515/HF.2009.126
Publisher site
See Article on Publisher Site

Abstract

Surface tension of kraft lignin (KL) and KL/poly(N,N-dimethylaminoethyl methacrylate) mixtures, with different composition at the air-water interface depending on pH and temperature, was measured. It was found that the surface activity of both KL and the reaction mixtures grows with decreasing pH and increasing temperature. At the same time, the surface activity of the KL/poly(N,N-dimethylaminoethyl methacrylate) reaction mixture, irrespective of its composition under the same environment conditions, considerably exceeds the surface activity of KL, indicating the synergetic effect governed by the peculiarities of the polymeric structure of the formed soluble particles of the polyelectrolyte complex.

Journal

Holzforschung - International Journal of the Biology, Chemistry, Physics and Technology of Woodde Gruyter

Published: Nov 1, 2009

Keywords: kraft lignin; polyelectrolyte complex; surface tension; synergetic effect

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