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435503 Aldrich

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

average Mn ~3,300

Synonym: PPG-PEG-PPG, Pluronic® 31R1

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Properties

Related Categories Amphiphilic Block Copolymers, Biomaterials, Block Copolymers, Materials Science, Micro/NanoElectronics,
mol wt   average Mn ~3,300
composition   PEG, 10 wt. %
refractive index   n20/D 1.454
surface tension   34 dyn/cm, 25 °C, 0.1 wt. % in H2O
viscosity   660 cP(25 °C, Brookfield)(lit.)
transition temp   softening point −25 °C
  cloud point 25 °C (1 wt. % aqueous solution)
density   1.018 g/mL at 25 °C
HLB   2.0 - 7.0

Description

Packaging

250 mL in poly bottle

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.

PPG-PEG-PPG Pluronic® 31R1 can be used as surface cleaners (soft and hard), defoamers in coatings, in water treatment, lubricant in metal working, anti-foaming aid and extender for linear and cross-linked polyesters and polyurethanes.

Features and Benefits

Surface activity is dependent on the EO/PO ratio. Lower foaming, greater defoaming and reduced gelling tendencies relative to Pluronic® surfactants. Terminal secondary hydroxyl groups have lower reactivity and acidity than the primary hydroxyl groups in Pluronic® surfactants.

General description

Surface activity of the polymer is dependent on the EO/PO ratio. PPG-PEG-PPG exhibits lower foaming, greater defoaming and reduced gelling tendencies relative to Pluronic® surfactants. Terminal secondary hydroxyl groups of PPG-PEG-PPG have lower reactivity and acidity than the primary hydroxyl groups in Pluronic surfactants.

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

Documents

Certificate of Analysis

Certificate of Origin

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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