Controlled synthesis and processing of a poly(L-lactide-co-ε-caprolactone) copolymer for biomedical use as an absorbable monofilament surgical suture

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Poly(L-lactide-co-ε-caprolactone) 75:25% mol, P(LL-co-CL), was synthesized via bulk ring-opening polymerisation (ROP) using a novel tin(II)alkoxide initiator, [Sn(Oct)]2DEG, at 130oC for 48 hrs. The effectiveness of this initiator was compared withthe well-known conventional tin(II) octoateinitiator, Sn(Oct)2. The P(LL-co-CL) copolymersobtained were characterized using a combination of analytical technique including: nuclear magnetic resonance spectroscopy (NMR), differential scanning calorimetry (DSC), thermogravimetry (TG) and gel permeation chromatography (GPC). The P(LL-co-CL) was melt-spun into monofilament fibres of uniform diameter and smooth surface appearance. Modification of the matrix morphology was then built into the as-spun fibresvia a series of controlled off-line annealing and hot-drawing steps.

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Publication date19 Mar 2014
Publication titleAdvanced Materials Research IV
EditorsZhihua Guo, Jie Xu
Number of pages5
ISBN (Print)978-3-03835-032-3
Original languageEnglish
Event4th International Conference on Advanced Materials Research - Macau, China
Duration: 22 Jan 201423 Jan 2014

Publication series

NameAdvanced materials research
ISSN (Print)1022-6680


Conference4th International Conference on Advanced Materials Research
Abbreviated titleICAMR 2014


  • ε-caprolactone, Absorbablesurgical suture, biomedical applications, L-lactide, melt spinning, ring-opening polymerisation, absorbable surgical suture

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