P-188 Pure Block Copolymer

• Product Name: P-188 Pure Block Copolymer

• Chemical Name: Polyoxyethylene-Polyoxypropylene Block Copolymer (Poloxamer 188)

• CAS No.: 9003-11-6 (100% Active Ingredient)

Technical Specifications

• Physical Form: White flakes or powder (100% Active, Solvent-Free)

• Average Molecular Weight: ~8200

• HLB Value: 29 (Highly Hydrophilic / Water-Soluble)

• pH (2.5% aqueous solution): 5.0 – 7.5

Product Description

P-188 is a premier, high-purity, non-ionic block copolymer widely recognized for its exceptional performance in advanced biopharmaceutical, personal care, and high-end industrial applications. Characterized by a well-defined molecular weight of ~8200 and an elite HLB value of 29, P-188 offers superior water solubility, excellent thermal stability, and remarkable membrane-stabilizing properties. It serves as an indispensable ingredient for specialized formulations, targeted drug delivery platforms, and high-performance aqueous emulsification.

Key Applications & Technical Benefits

• Pharmaceutical & Biotech Excellence: Widely utilized as a premium pharmaceutical-grade excipient for stabilizing lipid emulsions, solubilizing highly hydrophobic active ingredients (APIs), and protecting fragile cell membranes in bioreactors.

• Advanced Drug Delivery Systems: Functions as an ideal polymeric surfactant and nanocarrier component due to its outstanding biocompatibility, low toxicity, and non-ionic nature.

• Superior Oil-in-Water (O/W) Emulsification: Provides robust, long-term steric stabilization for O/W emulsions, exhibiting exceptional resistance against high-salinity, extreme pH, or complex ionic chemical environments.

• Elite Wetting & Dispersion: Delivers top-tier performance in dispersing fine organic/inorganic particles and stabilizing advanced aqueous coatings, inks, and specialized industrial cleaning fluids.