Browsing Environmental Science by Author "Mao, Jia"
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Comparative assessment of methods for producing cellulose I nanocrystals from cellulosic sources
Mao, Jia; Abushammala, Hatem; Brown, Nicole; Laborie, Marie-Pierre (American Chemical Society, 2017)Current environmental concerns foster a strong interest in extracting polymers and building-blocks from lignocellulosic biomass. Among these, cellulose nanocrystals (CNCs) have raised both academic and industrial interest ... -
Imidazole, a new tunable reagent for producing nanocellulose, part I: Xylan-coated CNCs and CNFs
Mao, Jia; Abushammala, Hatem; Hettegger, Hubert; ETAL.. (Multidisciplinary Digital Publishing Institute, 2017-10)Imidazole is reported to be an effective reactant for the production of nanocellulose from hardwood pulp. The morphologies and surface properties of the nanocellulose can be simply tailored according to the water content ... -
Impact of the Surface Properties of cellulose nanocrystals on the crystallization kinetics of poly (butylene succinate)
Abushammala, Hatem; Mao, Jia (Multidisciplinary Digital Publishing Institute, 2020-03)The hydrophilicity of cellulose nanocrystals (CNCs) is a major challenge for their processing with hydrophobic polymers and matrices. As a result, many surface modifications have been proposed to hydrophobize CNCs. The ... -
Monitoring the surface aging of wood through its pits using atomic force microscopy with functionalized tips
Mao, Jia; Abushammala, Hatem; Kasal, Bohumil (Elsevier, 2021-01)Wood aging is a topic of great interest due to its impact on wood performance and durability as a construction material. Therefore, it is important to develop accurate methods to monitor aging and understand its mechanisms. ... -
A review of the surface modification of cellulose and nanocellulose using aliphatic and aromatic mono-and di-isocyanates
Abushammala, Hatem; Mao, Jia (Multidisciplinary Digital Publishing Institute, 2019-01)Nanocellulose has been subjected to a wide range of chemical modifications towards increasing its potential in certain fields of interest. These modifications either modulated the chemistry of the nanocellulose itself or ... -
A review on the partial and complete dissolution and fractionation of wood and lignocelluloses using imidazolium ionic liquids
Abushammala, Hatem; Mao, Jia (Multidisciplinary Digital Publishing Institute, 2020-01)Ionic liquids have shown great potential in the last two decades as solvents, catalysts, reaction media, additives, lubricants, and in many applications such as electrochemical systems, hydrometallurgy, chromatography, CO2 ... -
A structural fibrillation parameter from small angle X-ray scattering to quantify pulp refining
Mao, Jia; Heck, Barbara; Abushammala, Hatem; Reiter, Günter; Laborie, Marie-Pierre (Springer Netherlands, 2019-06)Pulp fibrillation results from refining and is of prime importance for papermaking. Yet a structural parameter reflecting the extent of fibrillation remains elusive. In this work, we demonstrate that in refined pulps, the ... -
Swelling and hydrolysis kinetics of Kraft pulp fibers in aqueous 1-butyl-3-methylimidazolium hydrogen sulfate solutions
Mao, Jia; Abushammala, Hatem; Barcellos, Laura; Laborie, Marie-Pierre (Elsevier, 2016-11)1Butyl-3-methylimidazolium hydrogen sulfate ([Bmim]HSO4) is efficient at extracting cellulose nanocrystals from pulp fibers. To shed some light on the respective contributions of swelling and hydrolysis of pulp fibers by ...