Plasticizing of chitosan films with deep eutectic mixture of malonic acid and choline chloride.
作者： Maria P. Sokolova , Michael A. Smirnov , Artemiy A. Samarov , Natalya V. Bobrova , Vitaly K. Vorobiov
DOI: 10.1016/J.CARBPOL.2018.06.037
关键词:
摘要: Abstract Chitosan (CS) films containing deep eutectic solvent (DES) based on malonic acid (MA) and choline chloride (ChCl) were successfully prepared by solution casting method using DES content ranging from 0 to 82 wt%. A strong interaction of CS with the components was demonstrated analyses water sorption isotherms, atomic force microscopy FTIR results. The plasticizing effect MA ChCl mixture matrix shown static bulk mechanical measurements, thermal analysis quantitative nanomechanical mapping (QNM). Elongation at break increased 3 62% increase 67 wt%, while further led decreasing maximal elongation. Introduction into appearance glass transition temperature in region +2 - -2.3 °C. QNM results indicated homogeneity up 75 wt% DES.
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