Swelling and hydrolysis kinetics of Kraft pulp fibers in aqueous 1-butyl-3-methylimidazolium hydrogen sulfate solutions
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- 作者：Jia Maoa ; b ; Jia.mao@biomat.uni-freiburg.de" class="auth_mail" title="E-mail the corresponding author ; Hatem Abushammalaa ; b ; Hatem.abushammala@biomat.uni-freiburg.de" class="auth_mail" title="E-mail the corresponding author ; Laura Barcellos Pereiraa ; b ; 1 ; laura.barcellos-pereira@stud.uni-due.de" class="auth_mail" title="E-mail the corresponding author ; Marie-Pierre Laboriea ; b ; marie-pierre.laborie@biomat.uni-freiburg.de" class="auth_mail" title="E-mail the corresponding author ; mariepierrelaborie@gmail.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：Cellulose ; Ionic liquids ; 1-Butyl-3-methylimidazolium hydrogen sulfate ; Hydrolysis kinetics ; Swelling
- 刊名：Carbohydrate Polymers
- 出版年：2016
- 出版时间：20 November 2016
- 年：2016
- 卷：153
- 期：Complete
- 页码：284-291
- 全文大小：2235 K
文摘
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[Bmim]HSO4 functions as a poor homogeneous solvent for kraft wood pulp achieving a low degree of equilibrium swelling (10–20%) compared to that in water.
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The competition of swelling and hydrolysis of kraft wood pulp in aqueous [Bmim]HSO4 is mostly governed by temperature.
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At 120 °C swelling and hydrolysis of kraft wood pulp in aqueous [Bmim]HSO4 becomes significant.
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The kinetic model reveals that water plays an important role at 120 °C by enhancing accessibility of weak links to hydrolysis.