| 초록 |
Recently, biopolymers based on renewable resources such as vegetable oils are attracting attentions of researchers in industries as well as academia from view point of sustainability. Epoxidized soybean oil is one of the popular vegetable oil derivatives with renewability. However, vegetable oil based polymers are mechanically weak generally. Isosorbide is a bicyclic diol derived from glucose with rigidity. We have paid attentions on the potential of isosorbide as a hardener of epoxy resin to replace phenolic hardeners. It is interesting to note that rigid back bone can be introduced by incorporating isosorbide in biopolymer systems. In this study, we have investigated thermal and mechanical properties of biopolymers prepared by a cationic ring opening copolymerization of ESO and isosorbide with boron trifluoride diethyl etherate as a initiator in chloroform. Mechanical properties of copolymers of ESO and isosorbide could be improved compared with the homopolymers of ESO. |
