Chemical name: Poly(2,6-dimethyl-1,4-phenylene ether) (PPE)

Formula: （C₈HO）_n

  PPO^* Resin 640 is a medium-high molecular weight polymer based on PPE. PPO^* is intended for use as an additive or a building block in a variety of thermoplastics and thermoplastic elastomers like Styrenic Block Copolymers. PPO^* Resin can be used to improve properties like Heat Distortion and Creep Resistance.It is hydrolytically stable and non-hydroscopic(typically less than 0.2% water uptake).The polymer is solube in common organic solvents like toluene, chloroform and THF.