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Sigma-Aldrich

Poly(L-lactide)

average Mn 5,000, PDI ≤1.2

Synonyme(s) :

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

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About This Item

Formule linéaire :
H(C3H4O2)nOCH3
Code UNSPSC :
12162002
Nomenclature NACRES :
NA.23

Forme

solid

Niveau de qualité

100

Activité optique

[α]22/D -147°, c = 0.5% in chloroform

Poids mol.

average Mn 5,000

Intervalle de dégradation

>3 years

Température de transition

Tm 149-154 °C

PDI

≤1.2

Température de stockage

2-8°C

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Catégories apparentées

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.

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

Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

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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