We have synthesized one new material through Sono-Gashira coupling reaction. But, in the product, some golden colour particles are also present. We are thinking that it may be some palladium complex. Is there any method to remove this?
Dear Arya J S,
you can solubilze you polymer in a poor solvent for the metal complex, after that centrifuge and separate the solution phase. Regards
It depends on the stability of your polymeric material and the coordination of the Pd. If I were you I'd try to place the contaminated polymer in a mildly acidic/basic solution of HCl (pH=5)/Ethyldiamine.
Alternatively try to wash the polymer with a N-donor chelator with >2 N, e.g. EDTA. Thermodynamically speaking your Pd should bind to the EDTA and allow for separation.
Last option would be to reduce the Pd but it will obviously depend on the polymer stability.
Bear in mind that all these strategies may only work if the Pd is actually coordinated with the polymer, however if the Pd is trapped in a pore/cavity of your polymer that would be another story.
Best of luck.
I agree with Professor João Marreiros. It depends on the type of interaction and bonding between palladium and the function groups your polymer have.
All the best,
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