Chain-end functionalization of polyolefins prepared by alpha-diimine nickel catalysts using transfer to organometallic compounds

0575519 - ÚMCH 2024 RIV GB eng J - Journal Article
Kotyza, O. - Kočková, Olga - Merna, J.
Chain-end functionalization of polyolefins prepared by alpha-diimine nickel catalysts using transfer to organometallic compounds.
Polymer. Roč. 285, 20 October (2023), č. článku 126314. ISSN 0032-3861. E-ISSN 1873-2291
Institutional support: RVO:61389013
Keywords : α-diimine nickel complexes * living olefin polymerization * chain-end functionalization
OECD category: Polymer science
Impact factor: 4.6, year: 2022
Method of publishing: Limited access
https://www.sciencedirect.com/science/article/pii/S0032386123006444?via%3Dihub

A method for chain-end functionalization is described for branched polyolefins obtained by living olefin polymerization initiated by α-diimine nickel catalysts. The method relies on transmetalation of living polymer chains from nickel growing centres to excess organozinc, organomagnesium or organoaluminium transfer agents followed by oxidation. Hydroxy-terminated polyolefins were obtained with efficiencies going from 25 to 99%. The resulting end-functionalized polyolefins were characterized by MALDI-TOF MS and employed as macroinitiators for ring opening polymerization of ε-caprolactone to provide amphiphilic block copolymers.
Permanent Link: https://hdl.handle.net/11104/0345367