Quantification of Optical Chirality in Cellulose Nanocrystal Films Prepared by Shear-Coating

Evaporation-induced-self-assembly is widely used to produce chiral cellulose nanocrystal (CNC) free-standing films reflecting left-handed polarized light. Research on supported CNC rather scarce. The reflection and/or transmission of unpolarized light are the most common optical techniques characterize selective whereas use quantify properties limited. Here, fabrication glass substrates by a shear-coating method, as well full characterization their polarization properties, reported. Optical chirality evidenced in films, showing brilliant blue structural color when viewed through polarizer and darkness right-handed polarizer. Mueller-matrix data modes quantitatively origin films. quantification linear circular birefringence, dichroism, performed analytical inversion Mueller matrix mode regression analysis using Tellegen constitutive equations. equivalence two methods demonstrated. swelling water kinetics during drying studied spectroscopy.