申请人:Universiteit Gent
公开号:EP3018151A1
公开(公告)日:2016-05-11
This invention provides a process for preparing an inert RAFT polymer, comprising polymerizing a RAFT-polymerizable ethylenically unsaturated monomer in the presence of a thiocarbonylthio compound until the monomer conversion reaches a value between 40% and 90%, and further comprising, when such value has been reached, adding a 5-fold to 100-fold molar excess, with respect to the thiocarbonylthio compound, of a reducing agent capable of performing aminolysis of the thiocarbonylthio end groups of the polymer. This invention further relates to an inert RAFT polymer prepared by such process.
本发明提供了一种制备惰性 RAFT 聚合物的工艺,包括在硫代羰基硫代化合物存在下聚合可进行 RAFT 聚合的乙烯基不饱和单体,直至单体转化率达到 40% 至 90% 之间的值,还包括在达到该值时,加入相对于硫代羰基硫代化合物摩尔过量 5 倍至 100 倍的还原剂,该还原剂能够对聚合物的硫代羰基硫代端基进行氨解。本发明还涉及一种通过上述工艺制备的惰性 RAFT 聚合物。