Behenyl polyethylene glycol methacrylate

Behenyl polyethylene glycol methacrylate (CAS 125441-87-4), abbreviated BEPEGMA, is a polymerizable macromonomer combining a long-chain C18–C22 alkyl group with a PEG spacer.

Where is Behenyl polyethylene glycol methacrylate used?

• Personal care: copolymerized into associative thickeners and film-forming polymers for viscosity control and sensory enhancement in creams, lotions, and styling products
• Home care and industrial cleaning: polymer systems requiring surface-active behaviour and thickening in one ingredient
• Plastics and polymer processing: reactive compatibilizer or surface-modifying comonomer improving substrate wetting and adhesion in coatings and dispersions
• Comb-type or graft copolymers: PEG side chains provide steric stabilization in aqueous dispersion systems
• It builds amphiphilic functionality into polymer backbones, enabling rheology control, emulsification, and surface modification in one copolymerizable unit.

Good to know: Specifications and molecular weight distributions vary by supplier; buyers should confirm purity prior to sourcing.