764698

Poly(L-lactide)

average M_n 20,000, PDI ≤1.1

• Sinônimo(s): PLA, PLLA, Polylactide, L-Lactide polymer, PLA, Poly(L-Lactic acid)
• Fórmula linear: H(C₃H₄O₂)_nOCH₃
• Código UNSPSC: 12162002
• NACRES: NA.23

Propriedades

• forma: solid
• atividade óptica: [α]22/D -153°, c = 0.5% in chloroform
• peso molecular: average M_n 20,000
• prazo de degradação: >3 years
• temperatura de transição: T_m 167-172 °C
• PDI: ≤1.1
• temperatura de armazenamento: 2-8°C

Descrição

Descrição geral

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.

Aplicação

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

Características e benefícios

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.

Informações de segurança

• Código de classe de armazenamento: 11 - Combustible Solids
• Classe de risco de água (WGK): WGK 3
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable