The Recovery of a Rhodium‐Containing Catalyst by Various New Silica‐Based Amine Ion Exchangers

Kramer, Jurjen; Scholten, Arjen; Driessen, Willem L.; Reedijk, J.

doi:10.1002/1099-0682(200206)2002:6<1488::aid-ejic1488>3.0.co;2-#

Cited by 8 publications

(1 citation statement)

References 25 publications

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“…The easiest process is dilution with an appropriate solvent that induces precipitation and crystallization 4, 5. Other techniques, such as dialysis through semipermeable membranes,6 centrifugation methods, gel permeation chromatography (GPC),7 and adsorption chromatography,8, 9 have also been demonstrated.…”

Section: Introductionmentioning

confidence: 99%

First diphosphinoamine ligand bearing a polymerizable side chain: Complexation with copper(I)

Ahuja

Samuelson

2005

J. Polym. Sci. A Polym. Chem.

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A diphosphinoamine ligand with a polymerizable side chain, (PPh2)2NCH2C6H4CHCH2 (vbzpnp or 1), was synthesized. The ligand could be polymerized by anionic polymerization with n‐butyllithium as the initiator. Polyvbzpnp was soluble in tetrahydrofuran and chloroform but was insoluble in methanol and was characterized with NMR, IR, and gel permeation chromatography. The number‐average and weight‐average molecular weights were 40,050 and 55,690, respectively, and the polydispersity index was 1.39. [Cu(CH3CN)4]ClO4 formed a bischelated complex with the monomer and produced [Cu(1)2]ClO4 (2), and CuCl formed a tetramer, Cu4(1)2Cl4 (3). All the compounds (1, 2, and 3) were characterized with single‐crystal‐structure determination, NMR, and IR spectroscopy. The addition of [Cu(CH3CN)4]ClO4 to polyvbzpnp resulted in an insoluble crosslinked polymer, which was characterized with solid‐state 31P {1H} magic‐angle‐spinning NMR. The copolymerization of styrene and 1 produced a styrene–vbzpnp copolymer that was found to be soluble in common organic solvents. © 2005 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 43: 3411–3420, 2005

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Section: Introductionmentioning

confidence: 99%