| 초록 |
In this study, we have synthesized a series of poly(ester ester) based thermoplastic elastomers (TPEEs). Hard segment (HS) was prepared via transesterification of 1,4-butanediol and dimethyl 2,6-naphthalenedicarboxylate. On the other hand, soft segment (SS) was prepared via polycaprolactone and polyvalerolactone. The effect of the cyclic ester on the properties of the elastomers was investigated by modifying the HS/SS ratio and molecular weight of polycaprolactone and polyvalerolactone. The resultant TPEEs were characterized by nuclear magnetic resonance spectroscopy and gel permeation chromatography. Their physical properties were investigated using universal testing machine, differential scanning calorimetry and dynamic mechanical analysis. |
