Tuning structural relaxations, mechanical properties, and degradation timescale of PLLA during hydrolytic degradation by blending with PLCL-PEG
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Abstract
Poly-L-lactide (PLLA) is a popular choice for medical devices due to its
bioresorbability and superior mechanical properties compared with other
polymers. However, although PLLA has been investigated for use in bioresorbable
cardiovascular stents, it presents application-specific limitations which
hamper device therapies. These include low toughness and strength compared with
metals used for this purpose, and slow degradation. Blending PLLA with novel
polyethylene glycol functionalised
poly(L-lactide-co-
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1873-2321