Glycidol polymerized by the microbial resting cells and commercially availa
ble hydrolase enzyme having epoxide hydrolase activity without added water
produced the water-soluble poly(glycidol). As a typical example, a mixture
of glycidol and 5% lipase AK (Pseudomonas fluorescens) was stirred at 30 de
greesC for 3 d to produce the poly(glycidol) with a weight-average molecula
r weight of 900.