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764590

Sigma-Aldrich

Poly(L-lactide)

average Mn 5,000, PDI ≤1.2

Sinonimo/i:

PLLA, Polylactide, L-Lactide polymer, PLA, Poly(L-Lactic acid)

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About This Item

Formula condensata:
H(C3H4O2)nOCH3
Codice UNSPSC:
12162002
NACRES:
NA.23

Forma fisica

solid

Attività ottica

[α]22/D -147°, c = 0.5% in chloroform

PM

average Mn 5,000

Tempo di degradazione

>3 years

Temp. transizione

Tm 149-154 °C

Ind. polidispersione

≤1.2

Temperatura di conservazione

2-8°C

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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.

Applicazioni

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

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.

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

Certificati d'analisi (COA)

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Poly(L-lactide) viscosity ~4.0 dL/g, 0.1 % (w/v) in chloroform(25 °C)

Sigma-Aldrich

95468

Poly(L-lactide)

Polylactic Acid - Biopolymer (PLA), granule, 3 mm nominal granule size, weight 100 g, natural

GF45989881

Polylactic Acid - Biopolymer

Poly L Lactic Acid - Biopolymer (PLLA), film, thickness 0.05 mm, size 150 × 150 mm, condition biopolymer

GF50233014

Poly L Lactic Acid - Biopolymer

Poly(D-lactide) inherent viscosity ~1.2 dl/g

Sigma-Aldrich

67122

Poly(D-lactide)

Poly(D,L-lactide) acid terminated, average Mw 15000

Sigma-Aldrich

805734

Poly(D,L-lactide)

Effect of poly (ethylene glycol)-block- poly (L-lactide) on the poly [(R)-3-hydroxybutyrate]/poly (L-lactide) blends
Yoon, J. S., Lee, W. S., Kim, K. S., Chin, I. J., Kim, M. N., & Kim, C.
Eur. Polymer J., 36(2), 435-442 (2000)
Chemical synthesis of polylactide and its copolymers for medical applications
Bendix, D.
Polymer Degradation and Stability, 59(1), 129-135 (1998)
Synthesis and thermal properties of novel star-shaped poly (l-lactide)s with starburst PAMAM-OH dendrimer macroinitiator.
Zhao, Y. L., Cai, Q., Jiang, J., Shuai, X. T., Bei, J. Z., Chen, C. F., & Xi, F.
Polymer, 43(22), 5819-5825 (2002)
Wolf, Florian F.; et al.
Macromolecules, 42, 5622-5628 (2009)
Zhang, Wen-Bin; et al.
Macromolecules, 44, 2589-2596 (2011)
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