Four kinds of polymeric β‐diketone compounds, including poly(vinylbenzyldibenzoylmethane)(1), poly(vinylbenzylacetoacetone)(2), poly(vinylbenzyl‐2‐thenoyltrifluoroacetone)(3) and poly(p‐benzoylacetylstyrene)(4) were synthesized. And then polymeric β‐diketone‐europium(III), ‐terbium(III), ‐samarium(III), ‐dysprosium(III), ‐europium(III)‐gadolinium(III), ‐terbium(III)‐gadolinium(III), and ‐europium(III)‐terbium(III) chelates were also synthesized. The chelate structures were confirmed. The influence of the structure on the fluorescence properties was investigated. The fluorescence intensity of polymeric rare‐earth metal complexes is closely related to the ligand and metal content. Polymeric complexes possess a higher fluorescence stability than that of corresponding low‐molecular‐weight complexes.

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Abstract:Tertiary amino resins (TAR) were chemically modified by quaternization with methyl iodide. By this route six partly quaternized tertiary amino resins (PQTAR) with different I/N mole ratio were synthesized. Four different reducing agents, i.e., NaH, LiAlH4, CH OH NaOH and NaBH4, were tested for the preparation of pa3ladium catalysts dispersed on TAR or PQTAR. The rate of hydrogenation of methyl acryzate and the amount of Pd leached from the catalysts during the hydrogenation reaction were found to be dependent not only on the type of reducing agent but also on the structure of polymer support. Both the rate of hydrogenation and the amount of Pd eluted closely relate to the I/N mole ratio of the polymer supports.