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Kasetaite S.,Kaunas University of Technology | Ostrauskaite J.,Kaunas University of Technology | Grazuleviciene V.,Lithuanian University of Agriculture | Svediene J.,Biodeterioration Research Laboratory | Bridziuviene D.,Biodeterioration Research Laboratory
Journal of Applied Polymer Science | Year: 2013

Monomers derived from renewable recourses have the potential to become the biobased alternatives for petroleum derived chemicals in the production of polymers. Glycerol, the byproduct of biodiesel refining, and propylene glycol derived from glycerol are promising candidates which can be used in the synthesis of polymers as they are or after chemical modification. The new copolymers of glycerol and propylene glycol diglycidyl ethers with aromatic dithiols were synthesized and investigated in this study. Their chemical structures were confirmed by IR, 1H-NMR spectroscopy, and gel permeation chromatography. The dependencies of the mechanical, thermal properties, swelling in the different solvents, biodegradability, and bioresistance of synthesized copolymers on their chemical structures were studied. The properties of some synthesized copolymer films were found to be comparable with those of commodity polymer films. Copyright © 2013 Wiley Periodicals, Inc. Source


Kasetaite S.,Kaunas University of Technology | Ostrauskaite J.,Kaunas University of Technology | Grazuleviciene V.,Lithuanian University of Agriculture | Svediene J.,Biodeterioration Research Laboratory | Bridziuviene D.,Biodeterioration Research Laboratory
Journal of Applied Polymer Science | Year: 2014

Natural oils are the attractive biobased alternatives for petroleum derived chemicals in the production of polymers. A series of new biodegradable polymers based on epoxidized camelina oil was synthesized and investigated. The thermal, mechanical, swelling properties, hydrolysis, biodegradation, and bioresistance of the camelina oil-based polymers with bisphosphonate crosslinks were studied and compared with those of the analogous polymers based on epoxidized linseed oil. The dependence of the polymer properties on the density of crosslinks was observed. The obtained results showed that the properties of the camelina oil-based polymers are comparable with those of the linseed oil-based polymers and that camelina oil is a promising starting material for the synthesis of polymers. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40683. Copyright © 2014 Wiley Periodicals, Inc. Source


Kasetaite S.,Kaunas University of Technology | Ostrauskaite J.,Kaunas University of Technology | Grazuleviciene V.,Lithuanian University of Agriculture | Svediene J.,Biodeterioration Research Laboratory | Bridziuviene D.,Biodeterioration Research Laboratory
Polymer Bulletin | Year: 2015

Cross-linked polymers are obtained by photopolymerization of glycerol diglycidyl ether with different reactive diluents (3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexane carboxylate, 1,4-cyclohexane dimethanol diglycidyl ether, bisphenol A diglycidyl ether, trimethylolpropane triglycidyl ether, and bis[4-(glycidyloxy)phenyl]methane) using the mixture of triarylsulfonium hexafluoroantimonates as photoinitiator. The changes of rheological properties are examined during the UV curing for the batches of glycerol diglycidyl ether with the different reactive diluents. The dependencies of the mechanical, thermal properties, swelling in the different solvents, biodegradability, and bioresistance of the synthesized polymers on their chemical structure are studied. © 2015 Springer-Verlag Berlin Heidelberg Source

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