Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)
ALDRICH/435465 - average Mn ~5,800
Synonym: Pluronic® P-123; PEG-PPG-PEG
CAS Number: 9003-11-6
MDL Number: MFCD00082049
Product Type: Chemical
composition | PEG, 30 wt. % |
density | 1.018 g/mL at 25 °C |
feed ratio | 20:70:20 (EO:PO:EO) |
form | solid |
HLB | 7 - 9 |
InChI | 1S/C3H6O.C2H4O/c1-3-2-4-3 |
InChI key | RVGRUAULSDPKGF-UHFFFAOYSA |
mol wt | average Mn ~5,800 |
refractive index | n |
surface tension | 34 dyn/cm, 25 °C, 0.1 wt. % in H2O |
transition temp | cloud point 90 °C (1 wt. % aqueous solution) |
Tm (DSC) 39 °C (at peak) | |
vapor density | >1 (vs air) |
vapor pressure | <0.3 mmHg ( 20 °C) |
viscosity | 350 cP(60 °C, Brookfield)(lit.) |
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. |
Application: | PEG-PPG-PEG is used in the preparation and coating of Fe-W-C(O) nanoparticles by sol gel technique. Also, employed as sacrificial templates to prepare ZnS nanospheres, nanoporous silica. |
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: | PEG-PPG-PEG (Pluronic P123) symmetric triblock copolymer constitutes of poly(ethylene oxide)(PEO) and poly (propylene oxide) (PPO). The unique characteristic of PPO block exhibiting hydrophobicity at temperatures above 288K and solubility in water at temperatures below 288K lead to formation of micelle consisting of PEO-PPO-PEO triblock copolymers. Some studies report that the hydrophobic core contains PPO block and a hydrophilic corona is comprised of PEO block. In 30wt% aqueous solution Pluronic P123® forms a cubic gel phase. |
Legal Information: | Pluronic is a registered trademark of BASF |
Packaging: | 1 L in poly bottle |
Packaging: | 250 mL in poly bottle |
Physical form: | Terminal primary dihydroxy-functional oligomer. |
RIDADR | NONH for all modes of transport |
WGK Germany | WGK 1 |
Flash Point(F) | Not applicable |
Flash Point(C) | Not applicable |
Density | 1.018 g/mL at 25 °C |
Refractive Index | n |
UNSPSC | 12352104 |