Medical polymer "Poly-DL-lactic acid (PDLLA)"
Medical polymers used for sutures and stent coatings.
"Poly-DL-lactic acid (PDLLA)" is obtained by using lactide (the cyclic dimer of lactic acid) as a monomer and performing ring-opening polymerization. Unlike crystalline poly-L-lactic acid (PLLA) and poly-D-lactic acid, it has an amorphous structure with L-lactic acid units and D-lactic acid units arranged randomly. It is mainly used for (biodegradable) sutures and stent coatings, and recently, development for new absorbable devices is also underway. 【Features】 ■ Mainly used for sutures and stent coating applications ■ Flexible processing characteristics ■ Capable of being processed into various shapes ■ Properties: Amorphous, transparent *For more details, please refer to the PDF document or feel free to contact us.
basic information
【Specifications (Example)】 Test Items: Standards ■ Inherent Viscosity: ηinh = 0.85 − 1.15 (dL/g) [0.5 g/dL CHCl3, 25 ℃] ■ Molecular Weight (MW): (Reference value: MW = 100,000 − 180,000) ■ Glass Transition Temperature (Tg): (Reference value: Tg = 50 − 60 (℃)) ■ Particle Size: Must not pass through a sieve with an opening of 500 µm *This is the specification for our representative PDLLA polymer. *For more details, please refer to the PDF document or feel free to contact us.
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Applications/Examples of results
【Usage】 ■Solution: Coating agent ■Other: New medical device *For more details, please refer to the PDF document or feel free to contact us.
