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435449 Aldrich

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

average Mn ~2,900

Synonym: PEG-PPG-PEG, Pluronic® L-64

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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 ~2,900
composition   PEG, 40 wt. %
refractive index   n20/D 1.46
surface tension   43 dyn/cm, 25 °C, 0.1 wt. % in H2O
viscosity   850 cP(25 °C, Brookfield)(lit.)
transition temp   Tm (DSC) 34 °C (at peak)
  cloud point 58 °C (1 wt. % aqueous solution)
density   1.05 g/mL at 25 °C
HLB   12.0 - 18.0

Description

Frequently Asked Questions

Frequently Asked Questions are available for this Product.

Packaging

1 L in glass bottle

250 mL in glass bottle

Physical form

Terminal primary dihydroxy-functional oligomer.

Application

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.

Legal Information

Pluronic is a registered trademark of BASF

Price and Availability


The Future of Bioimaging
Safety & Documentation

Safety Information

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

Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis. These documents are located on the product detail page under Useful Links & Tools. Click on the following link to search for a Certificate of Analysis. Please click the following link to see the details on our Product Dating Information.
How do I get lot-specific information or a Certificate of Analysis?
A Certificate of Analysis is available by lot number and can be obtained through our Advanced Search Option: http://www.sigmaaldrich.com/catalog/AdvancedSearchPage.do
How do I find price and availability?
There are several ways to find pricing and availability for our products.  Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers. 
What is Product 435449, Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol), soluble in?
This product is soluble in o-xylene
What is the hydrophile-lipophile balance (HLB) of Product 435449, Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)?
The hydrophile-lipophile balance (HLB) is between 12.0-18.0.
What is the softening point of Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)?
The softening point is 16°C.
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS. To access the shipping information for this material, use the link on the product detail page for the product, or search here. 
My question is not addressed here, how can I contact Technical Service for assistance?
Use the option to the right to "Ask a Question" by email of a Technical Service Scientist.
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Protocols & Articles

Articles

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, Applications, Catalog, Catalysis, Condensations, Diffusion, Material Matters, Methods, Sol-gel

Peer-Reviewed Papers
15

References

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