764698

Poly(L-lactide)

average M_n 20,000, PDI ≤1.1

• Synonyme(s) : PLA, 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
• Niveau de qualité: 100
• Activité optique: [α]22/D -153°, c = 0.5% in chloroform
• Poids mol.: average M_n 20,000
• Intervalle de dégradation: >3 years
• Température de transition: T_m 167-172 °C
• PDI: ≤1.1
• 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

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