| 초록 |
Polymers containing lactones are used as environmentally friendly powder paints because of the advantage of not using organic solvents. To obtain such a powder, ring opening transesterification polymerization method was employed which requires a diol-based material to link the lactone. Previous studies have been conducted using 1, 3-propanediol as bridge compound. In this study, we substitute the material as isosorbide derivatives to increase molecular weight and biomass ratio. However, since isosorbide itself has very low reactivity due to steric hindrance, alkylation was carried out to improve it. The isosorbide diallyl ether was prepared by stepwise addition of base solution and allyl bromide with phase transfer catalyst. This reaction was followed by hydroboration-oxidation of isosorbide diallyl ether. As a result, it was confirmed that the molecular weight was increased by using isosorbide dioxypropandiol compared to the conventional isosorbide. |
