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Water sorption isotherms of Kraft lignin and its composites

Volkova, Natalia LU ; Ibrahim, Victor LU ; Hatti-Kaul, Rajni LU and Wadsö, Lars LU (2012) In Carbohydrate Polymers 87(2). p.1817-1821
Abstract
The water sorption properties of Kraft lignin before and after treatment with the enzyme laccase, and its composites with branched polyethylenimine and chitosan, respectively, have been studied. The experimental sorption isotherms were obtained by dynamic vapour sorption (DVS) method. The data were analysed using the Brunauer–Emmett–Teller (BET) and Guggenheim–Anderson–de Boer (GAB) models. Monolayer capacity and surface area of the samples were determined by the BET model, showing an increase in these values for the composites. Application of the GAB model over the whole range of humidities (0–95%) gave a perfect correlation between experimental and calculated sorption isotherms using the nonlinear least squares fitting (NLSF).
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Carbohydrate Polymers
volume
87
issue
2
pages
1817 - 1821
publisher
Elsevier
external identifiers
  • wos:000298305400117
  • scopus:81255199268
ISSN
0144-8617
DOI
10.1016/j.carbpol.2011.10.001
language
English
LU publication?
yes
id
7f0c6150-b415-44af-a4ff-e22e3e6d7142 (old id 2220144)
date added to LUP
2011-11-30 12:24:01
date last changed
2017-03-05 03:20:18
@article{7f0c6150-b415-44af-a4ff-e22e3e6d7142,
  abstract     = {The water sorption properties of Kraft lignin before and after treatment with the enzyme laccase, and its composites with branched polyethylenimine and chitosan, respectively, have been studied. The experimental sorption isotherms were obtained by dynamic vapour sorption (DVS) method. The data were analysed using the Brunauer–Emmett–Teller (BET) and Guggenheim–Anderson–de Boer (GAB) models. Monolayer capacity and surface area of the samples were determined by the BET model, showing an increase in these values for the composites. Application of the GAB model over the whole range of humidities (0–95%) gave a perfect correlation between experimental and calculated sorption isotherms using the nonlinear least squares fitting (NLSF).},
  author       = {Volkova, Natalia and Ibrahim, Victor and Hatti-Kaul, Rajni and Wadsö, Lars},
  issn         = {0144-8617},
  language     = {eng},
  number       = {2},
  pages        = {1817--1821},
  publisher    = {Elsevier},
  series       = {Carbohydrate Polymers},
  title        = {Water sorption isotherms of Kraft lignin and its composites},
  url          = {http://dx.doi.org/10.1016/j.carbpol.2011.10.001},
  volume       = {87},
  year         = {2012},
}