Preparation and Mechanical Properties Study of Blown Film from Star Copolymer of Poly(Epsilon-Caprolactone-co-L-Lactide)

Shi Qi Liu; Lin Jiang; Ying Jie Zhang; Ming Long Yuan

doi:10.4028/www.scientific.net/AMR.750-752.1934

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 750-752Preparation and Mechanical Properties Study of...

Preparation and Mechanical Properties Study of Blown Film from Star Copolymer of Poly(Epsilon-Caprolactone-co-L-Lactide)

Abstract:

Star copolymers of ε-caprolactone and L-lactide (ε-CL/L-LA) were synthesized with different compositions in the presence of pentaerythritol and using stannous octoate as catalyst. The copolymers were characterized by ¹H NMR spectra analysis and then blown into films in a single-screw extruder. The mechanical properties study show that the copolymers differed widely in their elongation at break and tensile strength according to the ratio of monomers and pentaerythritol in the copolymerization. The tensile strength of the films deriving from extrusion is much higher than that obtained through solvent volatilization.

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Periodical:

Advanced Materials Research (Volumes 750-752)

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1934-1937

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.750-752.1934

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Online since:

August 2013

Authors:

Shi Qi Liu, Lin Jiang, Ying Jie Zhang, Ming Long Yuan

Keywords:

Blown Film, Poly (ε-caprolactone-co-L-lactide), Polylactide, Star Copolymer

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