Abstract
Natural cellulosic biopolymer matrices are readily dissolved using ionic liquid (IL) solvents. The dissolved biopolymer can be reconstituted from the ionic liquid using a solvent exchange. Variations in the solvent exchange process have been shown to strongly influence the final morphology in reconstituted cellulose from IL-cellulose solutions, including mesopore formation. We will report on the use of variable solvent exchange to form mesoporous all-cellulose composites. We have characterized these materials using AFM (height and nanomechanical mapping), SEM, XRD, and gas physisorption techniques. We will discuss these results, including the effects of variable IL treatment and solvent exchange parameters on the BET surface area, pore size, and material properties (e.g. modulus and adhesion).
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