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435430 Aldrich

Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)

average Mn ~2,800

Synonym: PEG-PPG-PEG, Pluronic® L-81

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Properties

Related Categories Amphiphilic Block Copolymers, Biomaterials, Block Copolymers, Materials Science, Micro/NanoElectronics,
vapor density   >1 (vs air)
vapor pressure   <0.3 mmHg ( 20 °C)
mol wt   average Mn ~2,800
composition   PEG, 10 wt. %
refractive index   n20/D 1.454
viscosity   475 cP(25 °C, Brookfield)(lit.)
transition temp   softening point −37 °C
  cloud point 20 °C (1 wt. % aqueous solution)
density   1.018 g/mL at 25 °C
HLB   1.0 - 7.0

Description

Packaging

250 mL in poly bottle

Physical form

Terminal primary dihydroxy-functional oligomer.

Application

Binary mixtures of Pluronic®  L-81 with Pluronic F-127 to form binary hydrogels.{12}

Hard and soft surface cleaners, defoamers in coatings and water treatment. Lubricant in metal working, anti-foaming aid and extender for linear and cross-linked polyesters and polyurethanes.

Features and Benefits

Surface active material whose properties are dependent on the hydrophilic (EO)/hydrophobic (PO) ratio. High EO content gives better o/w stabilizers.

General description

Pluronic® L-81 is a lipoprotein secretion inhibitor.

Legal Information

Pluronic is a registered trademark of BASF

Price and Availability


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Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
1
RTECS 
MD0911050
Protocols & Articles

Articles

Polyethylene Glycol (PEG) Selection Guide

Polyethylene glycol (PEG), also sometimes referred to as polyethylene oxide (PEO), is a condensation polymer of ethylene oxide and water that has several chemical properties that make it useful for b...
Keywords: Antimicrobials, Bacterial conjugations, Cell culture, Chemical reactions, Chromatography, Click chemistry, Condensations, Degradations, Detergents, Gas chromatography, Immobilization, Molecular biology, PEGylations, Peptide synthesis, Pharmaceutical, Polymerization reactions, Precipitation

Synthesis of Mesoporous Materials

Mespoporous materials, also known as mesoporous molecular sieves, are a class of 3D-nanostructures with well-defined mesoscale (2–50 nm diameter) pores and surface areas up to 1000 m2/g.1 In terms of...
Material Matters 2008, 3.1, 17.
Keywords: Absorption, Catalysis, Condensations, Diffusion, Sol-gel

Peer-Reviewed Papers
15

References

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