Cellulose-based films with internal plasticization with epoxidized soybean oil

Abstract A process was developed combining two natural-based products to obtain bio-based films. Industrial cellulose pulp dissolved and mixed with epoxidized soybean oil (ESBO), which acts as an internal plasticizer. distillable recyclable ionic liquid-based solvent used dissolve the cellulose. Appropriate distribution of cellulose/ESBO solution on glass surfaces careful regeneration enabled development solvent-free flexible Fourier transform infrared spectroscopy revealed presence triglyceride structure absence epoxide ring in films, confirming chemical reaction between hydroxyl groups The resulting films were further characterized by scanning electron microscopy, dynamic calorimetry, thermogravimetry, mechanical tensile tests. also evaluated contact angle measurement, swelling ability, vitro degradability cytotoxicity. results showed that ESBO can adjust both flexibility hydrophilicity materials suitable for a variety applications.