The invention relates to novel cyclic and open-chain hydroxylamine esters and polymerizable compositions comprising these hydroxylamine esters and an ethylenically unsaturated monomer or oligomer. The invention also relates to use as polymerization initiators and to the use of known hydroxylamine esters selected from the group consisting of HALS compounds and the novel hydroxylamine esters for the controlled degradation of polypropylene and for achieving a controlled increase in the molecular weight of polyethylene.
本发明涉及新型环状和开链
羟胺酯以及包含这些
羟胺酯和
乙烯基不饱和单体或低聚物的可聚合组合物。本发明还涉及作为聚合
引发剂的用途,以及从 H
ALS 化合物和新型
羟胺酯组成的组中选出的已知
羟胺酯在聚
丙烯受控降解和聚
乙烯分子量受控增加方面的用途。