Preparation of a poly(L-lactide-co-caprolactone) copolymer using a novel tin(II) alkoxide initiator and its fiber processing for potential use as an absorbable monofilament surgical suture

Sujitra Ruengde, Jintana Siripitayananon, Robert Molloy*, Runglawan Somsunan, Paul D. Topham, Brian J. Tighe

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

A poly(L-lactide-co-caprolactone) copolymer, P(LL-co-CL), of composition 75:25 mol% was synthesized via the bulk ring-opening copolymerization of L-lactide and ε-caprolactone using a novel bis[tin(II) monooctoate] diethylene glycol coordination-insertion initiator, OctSn-OCH2CH2OCH2CH2O-SnOct. The P(LL-co-CL) copolymer obtained was characterized by a combination of analytical techniques, namely nuclear magnetic resonance spectroscopy, gel permeation chromatography, dilute-solution viscometry, differential scanning calorimetry, and thermogravimetric analysis. For processing into a monofilament fiber, the copolymer was melt spun with minimal draw to give a largely amorphous and unoriented as-spun fiber. The fiber's oriented semicrystalline morphology, necessary to give the required balance of mechanical properties, was then developed via a sequence of controlled offline hot-drawing and annealing steps. Depending on the final draw ratio, the fibers obtained had tensile strengths in the region of 200–400 MPa.

Original languageEnglish
Pages (from-to)277-284
Number of pages8
JournalInternational Journal of Polymeric Materials
Volume65
Issue number6
Early online date8 Jan 2016
DOIs
Publication statusPublished - 2016

Fingerprint

Tin
Copolymers
Fibers
Processing
Viscosity measurement
Gel permeation chromatography
Glycols
Copolymerization
Nuclear magnetic resonance spectroscopy
Thermogravimetric analysis
Differential scanning calorimetry
Tensile strength
Annealing
Mechanical properties
caprolactone
poly(lactide)
Chemical analysis
dilactide

Bibliographical note

This is an Accepted Manuscript of an article published by Taylor & Francis in International Journal of Polymeric Materials and Polymeric Biomaterials on 8/1/16, available online: http://www.tandfonline.com/10.1080/00914037.2015.1119683

Keywords

  • Caprolactone

Cite this

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title = "Preparation of a poly(L-lactide-co-caprolactone) copolymer using a novel tin(II) alkoxide initiator and its fiber processing for potential use as an absorbable monofilament surgical suture",
abstract = "A poly(L-lactide-co-caprolactone) copolymer, P(LL-co-CL), of composition 75:25 mol{\%} was synthesized via the bulk ring-opening copolymerization of L-lactide and ε-caprolactone using a novel bis[tin(II) monooctoate] diethylene glycol coordination-insertion initiator, OctSn-OCH2CH2OCH2CH2O-SnOct. The P(LL-co-CL) copolymer obtained was characterized by a combination of analytical techniques, namely nuclear magnetic resonance spectroscopy, gel permeation chromatography, dilute-solution viscometry, differential scanning calorimetry, and thermogravimetric analysis. For processing into a monofilament fiber, the copolymer was melt spun with minimal draw to give a largely amorphous and unoriented as-spun fiber. The fiber's oriented semicrystalline morphology, necessary to give the required balance of mechanical properties, was then developed via a sequence of controlled offline hot-drawing and annealing steps. Depending on the final draw ratio, the fibers obtained had tensile strengths in the region of 200–400 MPa.",
keywords = "Caprolactone",
author = "Sujitra Ruengde and Jintana Siripitayananon and Robert Molloy and Runglawan Somsunan and Topham, {Paul D.} and Tighe, {Brian J.}",
note = "This is an Accepted Manuscript of an article published by Taylor & Francis in International Journal of Polymeric Materials and Polymeric Biomaterials on 8/1/16, available online: http://www.tandfonline.com/10.1080/00914037.2015.1119683",
year = "2016",
doi = "10.1080/00914037.2015.1119683",
language = "English",
volume = "65",
pages = "277--284",
journal = "International Journal of Polymeric Materials",
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publisher = "Taylor & Francis",
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T1 - Preparation of a poly(L-lactide-co-caprolactone) copolymer using a novel tin(II) alkoxide initiator and its fiber processing for potential use as an absorbable monofilament surgical suture

AU - Ruengde, Sujitra

AU - Siripitayananon, Jintana

AU - Molloy, Robert

AU - Somsunan, Runglawan

AU - Topham, Paul D.

AU - Tighe, Brian J.

N1 - This is an Accepted Manuscript of an article published by Taylor & Francis in International Journal of Polymeric Materials and Polymeric Biomaterials on 8/1/16, available online: http://www.tandfonline.com/10.1080/00914037.2015.1119683

PY - 2016

Y1 - 2016

N2 - A poly(L-lactide-co-caprolactone) copolymer, P(LL-co-CL), of composition 75:25 mol% was synthesized via the bulk ring-opening copolymerization of L-lactide and ε-caprolactone using a novel bis[tin(II) monooctoate] diethylene glycol coordination-insertion initiator, OctSn-OCH2CH2OCH2CH2O-SnOct. The P(LL-co-CL) copolymer obtained was characterized by a combination of analytical techniques, namely nuclear magnetic resonance spectroscopy, gel permeation chromatography, dilute-solution viscometry, differential scanning calorimetry, and thermogravimetric analysis. For processing into a monofilament fiber, the copolymer was melt spun with minimal draw to give a largely amorphous and unoriented as-spun fiber. The fiber's oriented semicrystalline morphology, necessary to give the required balance of mechanical properties, was then developed via a sequence of controlled offline hot-drawing and annealing steps. Depending on the final draw ratio, the fibers obtained had tensile strengths in the region of 200–400 MPa.

AB - A poly(L-lactide-co-caprolactone) copolymer, P(LL-co-CL), of composition 75:25 mol% was synthesized via the bulk ring-opening copolymerization of L-lactide and ε-caprolactone using a novel bis[tin(II) monooctoate] diethylene glycol coordination-insertion initiator, OctSn-OCH2CH2OCH2CH2O-SnOct. The P(LL-co-CL) copolymer obtained was characterized by a combination of analytical techniques, namely nuclear magnetic resonance spectroscopy, gel permeation chromatography, dilute-solution viscometry, differential scanning calorimetry, and thermogravimetric analysis. For processing into a monofilament fiber, the copolymer was melt spun with minimal draw to give a largely amorphous and unoriented as-spun fiber. The fiber's oriented semicrystalline morphology, necessary to give the required balance of mechanical properties, was then developed via a sequence of controlled offline hot-drawing and annealing steps. Depending on the final draw ratio, the fibers obtained had tensile strengths in the region of 200–400 MPa.

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