The present invention is directed to a monomer for chain growth polymerization, in particular anionic polymerization, said monomer having the general formula (EFL)
wherein: Ra is a C1-C30 alkyl, C3-C30 cycloalkyl, C6-C18 aryl or C2-C12 alkenyl group. The present invention is further directed to a process for the anionic polymerization of at least one compound (EFL) as defined above, wherein said anionic polymerization is conducted in the presence of an initiator selected from the group consisting of: alkali metal organyls; alkali metal alkoxides; alkali metal thiolate; alkali metal amides; and, compounds of an element of group 3a of the Periodic Table of the Elements. The process of anionic polymerization yields a homo- or co-polymer (p-EFL) having pendant lactone functional groups in its repeating units.
本发明涉及一种用于链增长聚合,特别是阴离子聚合的单体,所述单体具有通式 (EFL)
其中Ra 是 C1-C30 烷基、C3-C30 环烷基、C6-C18 芳基或 C2-C12 烯基。本发明进一步涉及至少一种如上定义的化合物(EFL)的阴离子聚合工艺,其中所述阴离子聚合是在选自以下组别的
引发剂存在下进行的:碱
金属羰基;碱
金属烷氧基;碱
金属
硫酸盐;碱
金属酰胺;以及元素周期表 3a 族元素的化合物。阴离子聚合过程产生的均聚物或共聚物(p-EFL)在其重复单元中具有悬挂的内酯官能团。