@article{Rokicki_Kowalczyk_Kaczorowski_2021, title={Six-membered cyclic carbonates – epoxy resins modifiers}, volume={63}, url={https://ichp.vot.pl/index.php/p/article/view/188}, DOI={10.14314/polimery.2018.2.2}, abstractNote={A method of epoxy resin modification by biscyclic six-membered carbonates was presented. It was demonstrated that the reaction of oxiranes with six-membered cyclic carbonates catalyzed by Lewis acids takes place mainly with formation of five-six-membered spiroorthocarbonate. As a result, polyethercarbonates, polyethers and five-membered cyclic carbonates are formed. At low temperatures the reaction may stop at spiroorthocarbonate stage. We demonstrated that epoxy resin modified with 10 wt % of urethane oligomer terminated with six-membered carbonates or biscyclic carbonate containing triethylene glycol moiety exhibited 66–83 % higher impact strength than unmodified epoxy resin, while other mechanical parameters were left intact.}, number={2}, journal={Polimery}, author={Rokicki, G. and Kowalczyk, T. and Kaczorowski, M.}, year={2021}, month={Jan.}, pages={90-101} }