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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
Pricing and availability is not currently available.

form

solid

Quality Level

100

shelf life

limited shelf life, expiry date on the label

mol wt

Mn ~30,000
Mw ~60,000

SMILES string

[O-]C(=O)C(O)C.[H+]

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

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Certificates of Analysis (COA)

Lot/Batch Number
BCCM4836
BCCM4837
BCCM1900
BCCM1898
BCCL7977

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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
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
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
Tong Chen et al.
Carbohydrate polymers, 92(2), 1124-1132 (2013-02-13)
Core-shell structured multifunctional nanocarriers (NCs) of ZnO quantum dots-conjugated gold nanoparticles (Au NPs) as core and amphiphilic hyperbranched block copolymer as shell were synthesized for targeted anticancer drug delivery. The amphiphilic hyperbranched block copolymer contained poly(l-lactide) (PLA) inner arm and
Discussion: Autologous fat grafting and injectable dermal fillers for human immunodeficiency virus-associated facial lipodystrophy: a comparison of safety, efficacy, and long-term treatment outcomes.
David Teplica
Plastic and reconstructive surgery, 131(3), 507-509 (2013-03-01)
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Electrospinning: Enabling Nanostructured Materials

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Electrospinning: Enabling Nanostructured Materials

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Questions

1–3 of 3 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  3. Hi, I'd like to know the Appearance (Form and color) of the PLA and the water content. Thank you.

    1 answer

    1. There is no appearance form or color specification for this product. However, historical information suggests this item is in the form of a powder to small rod or granule that is white to light beige in color. These properties are not quality guaranteed as the specification is not listed. The material is not tested for moisture content.

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