A dry-blend of novolic (a two-stage phenolic resin) and chlorinated polyethylene (CPE) was milled with a ball- mill at temperature of lipuid N2.By means of the method a copo-lymer was prepared.

• 本实验将线型酚醛树脂与氯化聚乙烯的干混物置于球磨机内,在液氮的温度下进行球磨,用这种方法来制备共聚物。