PIB (Polyisobutene) Molecular weight:2 500 g/mol Polyisobutene phenols are obtained by

Polyisobutene phenols are obtained by alkylation of an aromatic hydroxy compound with essentially homopolymeric polyisobutenes in the presence of a Lewis acidic alkylation catalyst

The nominal chemical formula of P123 is HO(CH2CH2O)20(CH2CH(CH3)O)70(CH2CH2O)20H

while a hydrophilic corona consists of the PEO block

Poloxamer 407's reversible gelation properties

PIB (Polyisobutene) Molecular weight:2 500 g/mol Polyisobutene phenols are obtained byPolyisobutene (polyisobutylene) is a class of organic polymers prepared by polymerization of isobutene. Polybutenes are clear, water light, viscous polymerization products of isobutene and n butene. They are highly resistant to ageing, stable to oxidation and electrically non conductive. In formulations, they improve shear stability, slip properties and the viscosity index. Due to these properties, polybutenes are used in many different products.