Publikation: Water-Soluble Salicylaldiminato Ni (II)-Methyl Complexes : Enhanced Dissociative Activation for Ethylene Polymerization with Unprecedented Nanoparticle Formation
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Water-soluble single-component (kappa2-N,O)-salicylaldiminato nickel-methyl complexes 1-4-L (L = TPPTS, TPPDS, H2N-PEG-OMe) allow for the catalytic polymerization of ethylene under organic solvent-free aqueous conditions producing high molecular weight polyethylene with particle sizes below 10 nm. Amphiphilic TPPDS- and H2N-PEG-OMe complexes exhibit a polymerization activity in water higher than that in toluene. A solvation-favored activation of precatalysts 1-4-L by equilibrium dissociation of L in aqueous solution likely accounts for this enhanced polymerization activity. The observed generation of a given particle by a single active site is an unprecedented mechanism for formation of aqueous particle dispersions.
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GÖTTKER-SCHNETMANN, Inigo, Brigitte KORTHALS, Stefan MECKING, 2006. Water-Soluble Salicylaldiminato Ni (II)-Methyl Complexes : Enhanced Dissociative Activation for Ethylene Polymerization with Unprecedented Nanoparticle Formation. In: Journal of the American Chemical Society. 2006, 128(24), pp. 7708-7709. ISSN 0002-7863. eISSN 1520-5126. Available under: doi: 10.1021/ja0619962BibTex
@article{GottkerSchnetmann2006Water-9845, year={2006}, doi={10.1021/ja0619962}, title={Water-Soluble Salicylaldiminato Ni (II)-Methyl Complexes : Enhanced Dissociative Activation for Ethylene Polymerization with Unprecedented Nanoparticle Formation}, number={24}, volume={128}, issn={0002-7863}, journal={Journal of the American Chemical Society}, pages={7708--7709}, author={Göttker-Schnetmann, Inigo and Korthals, Brigitte and Mecking, Stefan} }
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