%T Effect of Temperature on Molecular Weight Distribution of Pyridinium Acetate Treated Kraft Lignin
%V 148
%I Elsevier Ltd
%A T. Rashid
%A C.F. Kait
%A T. Murugesan
%P 1363-1368
%K Chromatography; Condensation reactions; Dissolution; Gel permeation chromatography; Ionic liquids; Liquid chromatography; Molecular weight; Molecular weight distribution; Process engineering; Temperature, Average molecular weight; Dissolution process; Effect of temperature; Elevated temperature; Increasing temperatures; Kraft lignin; Process temperature; Protic ionic liquids, Lignin, Alkali Lignins; Chromatography; Condensation; Molecular Weight; Temperature
%X The effect of temperature on the molecular weight distribution of kraft lignin during its dissolution in Pyridinium Acetate PyAce a protic ionic liquid was examined in detail by gel permeation chromatography. Lignin solubility increased with increasing temperature from 50°C to 100°C. The average molecular weight (Mw) of PyAce treated and recovered kraft lignin after thermal treatment with PyAce decreased from 4119 g mol-1 to 1995 g mol-1 within the temperature range of 50°C-75°C. A significant increase in molecular weight for PyAce treated lignin was observed as the process temperature was further increased from 75°C to 100°C. Results indicated that the condensation reactions occurred at elevated temperatures resulting in increased molecular weight during the dissolution process. © 2016 The Authors.
%D 2016
%R 10.1016/j.proeng.2016.06.599
%O cited By 7; Conference of 4th International Conference on Process Engineering and Advanced Materials, ICPEAM 2016 ; Conference Date: 15 August 2016 Through 17 August 2016; Conference Code:131138
%L scholars7388
%J Procedia Engineering