Overview of Polyphenylene Oxide (PPO) including background, history, advantages, limitations and typical applications.

Background: In 1965 polyphenylene ether was introduced as polyphenylene oxide (PPO) by the General Electric Co. in the U.S. and by AKU in Holland. Unfortunately for polyphenylene oxide its price is too high to justify extensive use which led to the introduction of the related and cheaper Noryl (PPE+PS) materials by General Electric Co. in 1966.