Preparation and Complex Formation of Polymers Anchoring 2-Oxazolidinone
摘要:
Polymers anchoring 3-unsubstituted 2-oxazolidinone were prepared and their complex formation with phenol and mercury(II) acetate were investigated. Preformed poly(4-hydroxystyrene) was treated with tris(2,3-epoxypropyl) isocyanurate to give a polymer containing 2-oxazolidinone residues within the limits of 57.7 mol%. Polymers carrying 2-oxazolidinone were also prepared through the homopolymerization and copolymerization of 4-(2-oxo-5-oxazolidinylmethoxy)phenyl acrylate. The effective concentration of 2-oxazolidinone residue in the polymers, which is accessible to phenol, was determined on the assumption that the polymer-bound 2-oxazolidinone and phenol formed a 1 : 1 complex. 2-Oxazolidinone and a mercury atom formed a 2 : 1 complex; this relation on the molar ratio applies to all forms of complexes between the mercury atom and the 2-oxazolidinone residue in the polymers.