Effect of the biodegradable triblock co-polyols on the mechanical properties of the thermoplastic poly(ester-ether-ester) elastomers
발표자
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초록
내용
Thermoplastic poly(ester-ether-ester) elastomers (TPEEs) were synthesized using triblock co-polyol of polycaprolactone (PCL) and poly(tetramethylene ether) glycol (PTMG) as soft segments. The PCL-PTMG-PCL polyols with molecular weight of 1300–4900 g mol–1 and Ð of 1.35–1.48 were prepared via ring opening polymerization of ε-caprolactone using Prussian blue analogue catalysts and PTMG (Mn = 650 g mol–1) as an initiator. The resultant PCL-PTMG-PCL-based TPEEs exhibited remarkably enhanced mechanical properties (ultimate strength and elongation up to 34.1 MPa and 1722.3 %, respectively) compared to those using PTMG or PCL as soft segments. In addition, the crystallinity and microphase separation behavior of the resultant TPEEs were investigated by spectroscopic, structural, and thermal analysis. The TPEEs also exhibited excellent hydrolytic and biodegradability.