Steareth-20 methacrylate

Steareth-20 methacrylate (CAS 52352-43-9), also known as polyethylene glycol monooctadecyl ether monomethacrylate, is a polymerizable macromonomer combining a hydrophobic stearyl tail with a 20-unit ethoxylate chain.

This dual-functional structure makes it a building block for associative polymers and surface-active copolymers used across personal care, cleaning, and industrial textile applications.

In personal care formulations, it is copolymerized into associative thickeners that deliver rheology control in lotions, conditioners, and styling products without compromising clarity or skin feel.

Home care and industrial cleaning formulators incorporate it into polymer systems that improve suspension stability and surface wetting in liquid detergents and hard-surface cleaners.

Textile and paper processors use copolymers derived from this monomer to modify fiber surface properties, improving softness, water repellency, or dye uptake depending on the co-monomer system.

Its ethoxylate segment also contributes emulsification performance in emulsion polymerization processes where surfactant-monomers are required to stabilize the latex particle interface.

Steareth-20 methacrylate is typically supplied as a waxy solid or viscous paste, with handling characteristics dependent on temperature. It is available in technical grade for industrial use.

Inhibited grades containing polymerization inhibitors for storage stability are standard in the market for formulation development and large scale chemical manufacturing processes.