Ytterbium metal polymers as precursors of luminescent materials emitting in the near infrared region

Metallopolymers based on the Yb(III) complexes with 2-methyl-5-phenyl-1-pentendione-3,5 (mphpd) and allyl-3-oxobutanoate (alacac) were obtained by radical polymerization. The copolymers with methylmethacrylate and styrene in a ratio of 5:95 are obtained. The kinetics of radical polymerization of synthesized metal polymers has been studied. The complexes were characterized by infrared, absorption, diffuse reflectance and fluorescence emission spectra. The spectroscopic studies of the synthesized compounds showed that the configuration of the chelate unit is unchanged during the polymerization. By the luminescent spectroscopy is shown that all studied compounds exhibit effective luminescence. It is established that the luminescence intensity of metalopolymers and copolymers is highest for copolymers and depends on the nature of the ligands.