| abstract |
The present invention is characterized by introducing isosorbide to a monomer configuration for securing the transparency of a biodegradable polymer as well as providing material having excellent heat resistance and flexibility, As a monomer, a component derived from isosorbide which has a rigid structure is contained by 10-50 mol % of a total diol component, thereby bringing a heat resistance enhancing effect, and enhancing transparency by interfering with crystal formation, and allowing for providing a polymer having excellent flexibility. Thus, the present invention may enable securing stability in usage especially in the packaging area, and enable the heightening of the range of usage and utilization thereof. |