abstract |
The present invention provides a high molecular weight polydiphenylvinylphosphine oxide having a molecular weight of 10,000 or more, which is particularly useful as a metal extractant. SOLUTION: General formula (Ph is a phenyl group) A high molecular weight polydiphenylvinylphosphine oxide having a molecular weight of 10,000 or more, and a metal extractant comprising the same. [Selection figure] None |