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- W2020199844 abstract "Poly(L-lactic acid) is prominent in biodegradable stent material research but its brittleness is a disadvantage. Poly(butylene succinate) (PBS) addition enhances ductility but there is a void in knowledge of degradation effects on PLLA/PBS blends—vital for evaluation of a potential stent material. Neat PLLA and melt-blended PLLA/PBS specimens were subjected to tensile testing, before and after degradation in buffered saline (37°C, pH 7.4), for up to 24 weeks. Additional specimens were subjected to constant-load creep tests. Tensile test results indicate that PLLA/PBS blends exhibit gradual losses of strengths and Young's moduli as they degrade whilst neat PLLA shows little change over a 24-week degradation period. Neat PLLA exhibits increasing creep resistance during the first eight weeks of degradation whilst the 75/25 wt% PLLA/PBS blend exhibits decreasing creep resistance with increasing degradation time. PLLA/PBS blends are ductile but creep resistance during degradation needs improvement for their use as biodegradable stent materials." @default.
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- W2020199844 date "2014-11-17" @default.
- W2020199844 modified "2023-09-25" @default.
- W2020199844 title "<i>In Vitro</i>Degradation Effects on Strength, Stiffness, and Creep of PLLA/PBS: A Potential Stent Material" @default.
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- W2020199844 doi "https://doi.org/10.1080/00914037.2014.945203" @default.
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