764590

Poly(L-lactide)

average M_n 5,000, PDI ≤1.2

• Synonyme(s) : PLLA, Polylactide, L-Lactide polymer, PLA, Poly(L-Lactic acid)
• Formule linéaire : H(C₃H₄O₂)_nOCH₃
• Code UNSPSC : 12162002
• Nomenclature NACRES : NA.23

Propriétés

• Forme: solid
• Activité optique: [α]22/D -147°, c = 0.5% in chloroform
• Poids mol.: average M_n 5,000
• Intervalle de dégradation: >3 years
• Température de transition: T_m 149-154 °C
• PDI: ≤1.2
• Température de stockage: 2-8°C

Description

Description générale

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.

Application

Drug Delivery including coating nanoparticles;end-group functionalization ;macroinitiator or block precursor.

Caractéristiques et avantages

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.

Informations sur la sécurité

• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable