聚亚烷基二醇制备方法概述

摘要

介绍了聚亚烷基二醇（PAG）的主要特性和在润滑油中的应用情况。对PAG的发展历史、制备方法及其反应机理研究现状进行了简要总结。重点介绍了目前制备PAG的几种聚合方法,包括阳离子聚合、阴离子聚合、配位聚合,并对每种聚合方法的机理、特点及催化剂的研究现状进行了总结。%Polyalkylene glycol（PAG） and its applications in lubricants are introduced.The historical background,preparation methods and polymerization mechanism of PAG are summarized.Thereinto,preparation methods of PAG are mainly discussed,including cationic initiation of polymerization,anionic initiation of polymerization,and coordinate-initiated polymerization.And then the mechanism and characteristics of each polymerization method and research status of catalysts are summarized.