435503
Poly(propylene glycol)-block-poly(ethylene glycol)-block-poly(propylene glycol)
average Mn ~3,300
Synonym(s):
Pluronic® 31R1, PPG-PEG-PPG
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About This Item
CAS Number:
MDL number:
UNSPSC Code:
12352112
PubChem Substance ID:
NACRES:
NA.23
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form
viscous liquid
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
InChI
1S/C3H6O.C2H4O/c1-3-2-4-3;1-2-3-1/h3H,2H2,1H3;1-2H2
InChI key
RVGRUAULSDPKGF-UHFFFAOYSA-N
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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.
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.
Legal Information
Pluronic is a registered trademark of BASF
Storage Class Code
10 - Combustible liquids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
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