聚 L -丙交酯

H(C₃H₄O₂)_nOCH₃

NA.23

Poly (L-lactide) is a semi-crystalline polymer which exhibits strong optical rotation and good mechanical properties. It is mostly used in the synthesis of degradable polymers which are used in orthopaedic devices, in dental applications, as scaffolds for autografted new skin, wound covers, anastomose systems and stents. They are biodegradable since the polyester backbone degrades by simple hydrolysis to form non-toxic compounds.

Used in Drug Delivery including coating nanoparticles. Can be end-group functionalizated or used as a macroinitiator/block precursor.

High initial strength, good strength retention and high amount of crystallinity as much as 70% which in turn is responsible for the very slow degradation rate.

100

[α]22/D -153°, c = 0.5% in chloroform

average M_n 20,000

>3 years

T_m 167-172 ℃

≤1.1

2-8℃

5 g in glass bottle

13 - Non Combustible Solids

WGK 3