542342

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

average M_n ~14,600

• Synonym(s): Pluronic^® F-108, PEG-PPG-PEG
• CAS Number: 9003-11-6
• MDL number: MFCD00082049
• UNSPSC Code: 12352112
• PubChem Substance ID: 24878600
• NACRES: NA.23

Properties

• vapor density: >1 (vs air)
• vapor pressure: <0.3 mmHg ( 20 °C)
• mol wt: average M_n ~14,600
• composition: PEG, 82.5 wt. %
• pH: 6.0-7.4 (2.5% in H₂O)
• surface tension: 41 dyn/cm, 25 °C, 0.1 wt. % in H₂O
• viscosity: 2,800 cP(77 °C, Brookfield)(lit.)
• transition temp: cloud point >100 °C (1 wt. % aqueous solution); T_m (DSC) 60 °C (at peak)
• HLB: >24.0
• InChI: 1S/C3H6O.C2H4O/c1-3-2-4-3;1-2-3-1/h3H,2H2,1H3;1-2H2
• InChI key: RVGRUAULSDPKGF-UHFFFAOYSA-N

Description

General description

Pluronic^® F108 is a tri block copolymer and a terminal primary dihydroxy-functional oligomer. It behaves as a nonionic surfactant. It is a surface active material whose properties are dependent on the hydrophilic (EO)/hydrophobic (PO) ratio. High EO content gives better o/w stabilizers.

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.

Pluronic^® F108 was used as a surfactant in a medium to prevent the cells from sticking to the surface of a microfluidic device.{7}-{11}Pluronic may be potentially useful as a pathogen detector. It was used in the analysis of microbial community and genotyping single nucleotide polymorphisms (SNPs).{9} The triblock copolymer was used as a pore template for the fabrication of porous carbons and carbon/silica composite.{10}

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.

Physical form

Terminal primary dihydroxy-functional oligomer.

Legal Information

Pluronic is a registered trademark of BASF

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1