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38534

Sigma-Aldrich

Polylactic acid

Mw ~60,000

Synonym(s):

Poly(2-hydroxypropionic acid)

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About This Item

CAS Number:
26100-51-6
MDL number:
MFCD00081867
UNSPSC Code:
12162002
NACRES:
NA.23

form

solid

shelf life

limited shelf life, expiry date on the label

mol wt

Mn ~30,000
Mw ~60,000

InChI

1S/C3H6O3/c1-2(4)3(5)6/h2,4H,1H3,(H,5,6)

InChI key

JVTAAEKCZFNVCJ-UHFFFAOYSA-N

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General description

Polylactic acid(PLA) is a biodegradable polyester synthesized from lactic acid monomer via ring opening polymerization. Owing to its excellent thermal, mechanical and barrier properties, it is widely used in the field of tissue engineering, drug delivery, and orthopedic devices.

Application

Polylactic acid can be used to prepare tubular scaffolds via the electrospinning method. These scaffolds are applicable in vascular tissue engineering.

It can be used to prepare PLA/polyvinyl alcohol wound dressing membrane through electrospinning and coating method. The coating of PLA improves the mechanical strength of nanofiber and acts as a protective layer to control the release of drug to the wound site.

It can also be used to synthesize free-standing, flexible ultra-thin PLA nanofilms which can act as a matrix for adhesion, spreading, and proliferation of skeletal muscle cells.

Features and Benefits

  • Biocompatibility
  • Lower toxicity
  • Low cost
  • Better encapsulation

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Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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R M Felfel et al.
Materials science & engineering. C, Materials for biological applications, 33(4), 1914-1924 (2013-03-19)
Fibre reinforced composites have recently received much attention as potential bone fracture fixation applications. Bioresorbable composites based on poly lactic acid (PLA) and phosphate based glass fibre were investigated according to ion release, degradation, biocompatibility and mechanical retention profiles. The
Paul S Rosen et al.
Compendium of continuing education in dentistry (Jamesburg, N.J. : 1995), 34(1), 34-38 (2013-04-05)
This retrospective case series reports on the use of a polylactic acid barrier that was left exposed in the process of socket preparation for the placement of dental implants. A retrospective chart review found 43 patients with 48 extraction sockets
Huan Zhou et al.
Materials science & engineering. C, Materials for biological applications, 33(4), 2302-2310 (2013-03-19)
Fibrous bionanocomposites consisting of amorphous magnesium phosphate (AMP) nanospheres and polylactic acid (PLA) were fabricated by electrospinning. There are two important signatures of this paper. First, AMP, as an alternative to well-known calcium phosphate (CaP) materials, is added to PLA
Dah Hee Kim et al.
Carbohydrate polymers, 92(2), 1006-1011 (2013-02-13)
The purpose of this study is to evaluate the rheological and thermal properties of poly(l-lactic acid) (PLA) composites incorporated with microcrystalline cellulose (MCC) and lignin. The MCC/lignin/PLA composites were fabricated through direct melt compounding. In particular, the effect regarding the
G Faludi et al.
Carbohydrate polymers, 92(2), 1767-1775 (2013-02-13)
PLA biocomposites were prepared using three corn cob fractions and a wood fiber as reference. The composites were characterized by tensile testing, scanning electron microscopy (SEM) and polarization optical microscopy (POM). Micromechanical deformation processes were followed by acoustic emission measurements.
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