HPEG 2400 — Methallyl Alcohol Polyoxyethylene Ether for PCE Superplasticizer Synthesis

HPEG 2400 is a polyether monomer built on a methallyl alcohol backbone, chain-extended through optimized ethoxylation to a molecular weight of 2400 ± 100 g/mol. The resulting structure — CH₂=C(CH₃)-CH₂-O-(CH₂-CH₂-O)ₙ-H — preserves a reactive terminal double bond that drives free-radical copolymerization with acrylic acid during PCE synthesis. At room temperature, HPEG 2400 is a white or light-yellow solid with a Pt-Co chroma value of ≤20, indicating a clean, low-color product suitable for clear or lightly pigmented admixture formulations.

Double bond retention is the specification that matters most to admixture production chemists. At ≥94% retention and a degree of unsaturation of ≥0.3916%, HPEG 2400 delivers consistent reactivity into the polymerization reactor, reducing batch-to-batch yield variation in the finished PCE and cutting losses from unreacted monomer. A hydroxyl value of 23.3 ± 1 mg KOH/g confirms chain-end chemistry and molecular weight consistency across production batches.

PCE superplasticizers produced with HPEG 2400 achieve water reduction rates of 30–35% in concrete mix designs, improving workability at lower water-to-cement ratios while accelerating early compressive strength development. Admixture manufacturers rely on HPEG 2400-based PCE across a broad spectrum of concrete grades — from standard ready-mix supply to precast facilities where early strength gain directly controls mold turnover rates and production throughput.

BASTONE procures HPEG 2400 from two qualified manufacturers — PetroChina Jilin Petrochemical (Kunlun brand) and Lianyungang Petrochemical (STL brand) — and offers it alongside EPEG 3000 and TPEG 2400 as part of a complete polyether monomer lineup from one supplier. Each shipment ships with batch-traceable COA documentation covering every specification parameter listed below.