764590

Poly(L-lactide)

average M_n 5,000, PDI ≤1.2

• Sinonimo/i: PLLA, Polylactide, L-Lactide polymer, PLA, Poly(L-Lactic acid)
• Formula condensata: H(C₃H₄O₂)_nOCH₃
• Codice UNSPSC: 12162002
• NACRES: NA.23

Proprietà

• Stato: solid
• Livello qualitativo: 100
• Attività ottica: [α]22/D -147°, c = 0.5% in chloroform
• PM: average M_n 5,000
• Tempo di degradazione: >3 years
• Temp. transizione: T_m 149-154 °C
• Ind. polidispersione: ≤1.2
• Temperatura di conservazione: 2-8°C

Descrizione

Descrizione generale

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.[1]

Applicazioni

Drug Delivery including coating nanoparticles[2];end-group functionalization[3] ;macroinitiator or block precursor.[4]

Caratteristiche e vantaggi

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.[1]

Informazioni sulla sicurezza

• Codice della classe di stoccaggio: 11 - Combustible Solids
• Classe di pericolosità dell'acqua (WGK): WGK 3
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable