Preparation of Fully Biodegradable Poly(L-lactide) and Poly(ethylene succinate) Blend and its Crystallization Property

Xin Fan

doi:10.4028/www.scientific.net/AMR.393-395.1363

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 393-395Preparation of Fully Biodegradable Poly(L-lactide)...

Preparation of Fully Biodegradable Poly(L-lactide) and Poly(ethylene succinate) Blend and its Crystallization Property

Abstract:

Both poly(L-lactide) (PLLA) and poly(ethylene succinate) (PES) are biodegradable synthetic aliphatic polyesters with excellent biocompatibility. They are semicrystalline thermoplastic polymers processed by most conventional processing methods. In view of their complementary properties, blending PLLA with PES becomes a promising approach to improve the properties of PLLA without compromising its biodegradability. In the present work, fully biodegradable PLLA/PES blend(the weight ratio 90/10) was melt-blended in stainless steel chamber. The crystallization morphology was investigated using a polarized optical microscope (POM), showing more clear spherulites with typical crosslink extinction patterns and faster crystallization rate of PLLA in blend at the lower heating rate. It clearly showed that the addition of PES largely increased the crystallization rate of PLLA and improved the crystallinity of PLLA in blends.

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Periodical:

Advanced Materials Research (Volumes 393-395)

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1363-1366

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.393-395.1363

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Online since:

November 2011

Authors:

Xin Fan

Keywords:

Blend, Crystallization, Poly(Ethylene Succinate), Poly(L-Lactide)

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