Toughening of Poly(L-lactide) with Blends of Poly(ε-caprolactone-co-L-lactide) in the Presence of Chain Extender

A poly(ε-caprolactone-co-L-lactide) copolyester was synthesized and employed to toughen poly(L-lactide) (PLLA) by reactive melt blending in the presence of an epoxy-based chain extender. The effects of chain extension reaction and copolyester content on properties of PLLA-based blends were studied....

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Detalles Bibliográficos
Autores principales: Srisuwan, Yaowalak, Baimark, Yodthong, Suttiruengwong, Supakij
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi 2018
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6157148/
https://www.ncbi.nlm.nih.gov/pubmed/30275834
http://dx.doi.org/10.1155/2018/1294397
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author Srisuwan, Yaowalak
Baimark, Yodthong
Suttiruengwong, Supakij
author_facet Srisuwan, Yaowalak
Baimark, Yodthong
Suttiruengwong, Supakij
author_sort Srisuwan, Yaowalak
collection PubMed
description A poly(ε-caprolactone-co-L-lactide) copolyester was synthesized and employed to toughen poly(L-lactide) (PLLA) by reactive melt blending in the presence of an epoxy-based chain extender. The effects of chain extension reaction and copolyester content on properties of PLLA-based blends were studied. The chain extension reaction reduced crystallinity and melt flow index of PLLA/copolyester blends. Meanwhile the copolyester blending improved the crystallinities of the chain-extended PLLA up to 20 wt% copolyester. The phase compatibility between PLLA matrix and dispersed copolyester phases was enhanced by the chain extension reaction. The impact strength of chain-extended PLLA increased with the contents of copolyester and chain extender.
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spelling pubmed-61571482018-10-01 Toughening of Poly(L-lactide) with Blends of Poly(ε-caprolactone-co-L-lactide) in the Presence of Chain Extender Srisuwan, Yaowalak Baimark, Yodthong Suttiruengwong, Supakij Int J Biomater Research Article A poly(ε-caprolactone-co-L-lactide) copolyester was synthesized and employed to toughen poly(L-lactide) (PLLA) by reactive melt blending in the presence of an epoxy-based chain extender. The effects of chain extension reaction and copolyester content on properties of PLLA-based blends were studied. The chain extension reaction reduced crystallinity and melt flow index of PLLA/copolyester blends. Meanwhile the copolyester blending improved the crystallinities of the chain-extended PLLA up to 20 wt% copolyester. The phase compatibility between PLLA matrix and dispersed copolyester phases was enhanced by the chain extension reaction. The impact strength of chain-extended PLLA increased with the contents of copolyester and chain extender. Hindawi 2018-09-12 /pmc/articles/PMC6157148/ /pubmed/30275834 http://dx.doi.org/10.1155/2018/1294397 Text en Copyright © 2018 Yaowalak Srisuwan et al. https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Srisuwan, Yaowalak
Baimark, Yodthong
Suttiruengwong, Supakij
Toughening of Poly(L-lactide) with Blends of Poly(ε-caprolactone-co-L-lactide) in the Presence of Chain Extender
title Toughening of Poly(L-lactide) with Blends of Poly(ε-caprolactone-co-L-lactide) in the Presence of Chain Extender
title_full Toughening of Poly(L-lactide) with Blends of Poly(ε-caprolactone-co-L-lactide) in the Presence of Chain Extender
title_fullStr Toughening of Poly(L-lactide) with Blends of Poly(ε-caprolactone-co-L-lactide) in the Presence of Chain Extender
title_full_unstemmed Toughening of Poly(L-lactide) with Blends of Poly(ε-caprolactone-co-L-lactide) in the Presence of Chain Extender
title_short Toughening of Poly(L-lactide) with Blends of Poly(ε-caprolactone-co-L-lactide) in the Presence of Chain Extender
title_sort toughening of poly(l-lactide) with blends of poly(ε-caprolactone-co-l-lactide) in the presence of chain extender
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6157148/
https://www.ncbi.nlm.nih.gov/pubmed/30275834
http://dx.doi.org/10.1155/2018/1294397
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AT suttiruengwongsupakij tougheningofpolyllactidewithblendsofpolyecaprolactonecollactideinthepresenceofchainextender

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