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单词 Polypropylene oxide
释义

Polypropylene oxide

英语百科

Polypropylene glycol

Cobalt catalyst for isotactic polypropylene oxide

Polypropylene glycol or polypropylene oxide is the polymer of propylene glycol. Chemically it is a polyether. The term polypropylene glycol or PPG is reserved for low to medium range molar mass polymer when the nature of the end-group, which is usually a hydroxyl group, still matters. The term "oxide" is used for high molar mass polymer when end-groups no longer affect polymer properties. In 2003, 60% of the annual production of propylene oxide of 6.6×10 tonnes was converted into the polymer.

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更新时间:2025/6/16 22:35:02