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Aggregation and gelation of cellulose nanocrystals (CNCs) induced by magnesium chloride (MgCl2) are investigated as a function of CNC and MgCl2 concentrations. Transmission electron microscopy (TEM) and confocal laser scanning microscopy (CLSM) are employed to study the effect of ionic strength and CNC concentration on the extent of aggregation and structure of the CNC network. The location of CNC...
Modified porous cellulose beads (MCBs) with typical sizes ranging from 2 to 3 mm were successfully fabricated via acidic precipitation from the cellulose dissolved in ionic liquid, followed by surface-grafting with aminoguanidine hydrochloride using glutaric anhydride as a coupling agent. The nano-sized calcium carbonate (30% wt on dry cellulose) was added to cellulose solution prior to the precipitation...
Nonbiodegradable features and the lack of antimicrobial activity for conventional synthetic polymer-based packaging materials remain as extensive concerns for environmental issues and food safety. In this work, an antimicrobial copolymer PHGH–PPGDE was synthesized via a reaction between polyhexamethylene guanidine hydrochloride (PHGH) and poly(propylene glycol)diglycidyl ether (PPGDE). The obtained...
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