title: Studies on performance evaluation of a green plasticizer made by enzymatic esterification of furfuryl alcohol and castor oil fatty acid.
abstract: The esterification of furfuryl alcohol (FA) and castor oil fatty acid (COFA) at 3:1 molar ratio, by immobilized Candida antarctica Lipase B (NS 435 from Novozyme) in a solvent free system gave a maximum yield of 88.64% (%w/w) at 5h. Performance of the FA-COFA ester plasticized Ethyl Cellulose (EC) films were evaluated by surface morphologies, XRD analysis, mechanical properties,thermal properties, water vapor permeability and migration stability test. It was an effective plasticizer with better mechanical properties and thermal stability at the increasing concentration of FA-COFA ester (15-25%) containing EC film, than the traditional plasticizer, i.e; dibutyl phthalate (DBP) in producing good quality films. Chemical structure and the intermolecular interactions between FA-COFA ester and ethyl cellulose chains were the causative agents of these outstanding performances. Therefore, this FA-COFA ester, with significant plasticizing property, at a certain concentration, can be a substitute of DBP.
authors.affiliation: Dept. of Chemical Technology, University of Calcutta, India.
authors.forename: Sohini
authors.initials: S
authors.lastname: Mukherjee
authors.affiliation: Dept. of Chemical Technology, University of Calcutta, India. Electronic address: mahuag@gmail.com.
authors.forename: Mahua
authors.initials: M
authors.lastname: Ghosh
mesh_terms: D002368:Castor Oil / Q000737:chemistry*; D004800:Enzymes, Immobilized / Q000378:metabolism; D004951:Esterification; D005227:Fatty Acids / Q000737:chemistry*; D005663:Furans / Q000737:chemistry*; D008049:Lipase / Q000378:metabolism; D010968:Plasticizers
chemical_list: D004800:Enzymes, Immobilized; D005227:Fatty Acids; D005663:Furans; D010968:Plasticizers; D002368:Castor Oil; C012986:furfuryl alcohol; D008049:Lipase
keywords: Castor oil fatty acid; Ethyl cellulose; Furfuryl alcohol; Immobilized Candida antarctica Lipase B; Plasticizer