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719935

Sigma-Aldrich

Resomer® R 203 S, Poly(D,L-lactide)

ester terminated, Mw 18,000-28,000

Synonym(s):

Lactide polymer, PDLLA

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About This Item

Linear Formula:
[C3H4O2]x[C2H2O2]y
CAS Number:
26780-50-7
UNSPSC Code:
12162002
NACRES:
NA.23

Quality Level

200

form

amorphous

mol wt

Mw 18,000-28,000

degradation timeframe

<6 months

viscosity

0.25-0.35 dL/g, 0.1 % (w/v) in chloroform(25 °C, Ubbelohde) (size 0c glass capillary viscometer)

transition temp

Tg 46-50 °C

storage temp.

2-8°C

InChI

1S/C6H8O4.C4H4O4/c1-3-5(7)10-4(2)6(8)9-3;5-3-1-7-4(6)2-8-3/h3-4H,1-2H3;1-2H2

InChI key

LCSKNASZPVZHEG-UHFFFAOYSA-N

Related Categories

General description

Ester terminated Poly(D,L-lactide) (PDLLA, RESOMER® ) is a copolymer of L and D-lactic acid and (or L and D lactide). The structure is highly irregular and amorphous. RESOMER® polymers are bioresorbable aliphatic polyesters comprised of a range of different ratios of lactide and glycolide monomers, PLA stereochemistries, and end-group functionalization.

Application

This biodegradable polyester is useful for the controlled release of drugs both in vitro and in vivo.

Legal Information

Product of Evonik
RADIANT is a registered trademark of Bio-Rad Laboratories, Inc.
RESOMER is a registered trademark of Evonik Rohm GmbH

Storage Class Code

11 - Combustible Solids

WGK

nwg

Flash Point(F)

235.4 °F - closed cup

Flash Point(C)

113 °C - closed cup

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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Biodegradable polyesters for controlled release of trypanocidal drugs: in vitro and in vivo studies.
Lemmouchi Y, et al.
Biomaterials, 19(20), 1827-1837 (1998)
Auras RA, et al.
Poly(lactic acid): Synthesis, Structures, Properties, Processing, and Application null

Articles

RESOMER® - Biodegradable Polymers for Sutures, Medical Devices, Drug Delivery Systems and Tissue Engineering

Interest in utilizing biodegradable polymers for biomedical applications has grown since the 1960s.

Biodegradable Polyester-based Nanoparticle Formation by Miniemulsion Technique

Aliphatic polyesters such as polylactide, poly(lactide-co-glycolide) and polycaprolactone, as well as their copolymers, represent a diverse family of synthetic biodegradable polymers that have been widely explored for medical uses and are commercially available.

Biodegradable Polyester Based Nanoparticle Formation by Miniemulsion Technique

Aliphatic polyesters such as polylactide, poly(lactide-co-glycolide) and polycaprolactone, as well as their copolymers, represent a diverse family of synthetic biodegradable polymers that have been widely explored for medical uses and are commercially available.

Bioprinting for Tissue Engineering and Regenerative Medicine

In the past two decades, tissue engineering and regenerative medicine have become important interdisciplinary fields that span biology, chemistry, engineering, and medicine.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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