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- W2381242787 abstract "Solid phase coordination reaction of samarium ion (Ⅲ) (Sm3+) and the resultant of polycondensation and imidization of benzoguanamine (BGA) and pyromellitic dianhydride (PMDA) under microwave radiation were studied. The effects of microwave radiation time (power), the composition of two reactants and the reaction temperature on the yield and Sm content in the complexes were investigated. The complex was studied by Fourier transform infrared spectrum (FTIR), Fourier transform Roman spectrum (FTRR), scanning electron microscope (SEM), 13C solid state nuclear magnetic resonance spectrometry and X-ray powder diffraction, respectively, and the content of Sm3+ in the complex was measured. The possible structure of the complex was inferred. The fluorescent emission intensity of the complex coordinated under microwave radiation was measured by fluorescent emission spectrum and was compared with the emission intensity of the complex with conventional thermal coordination. The magnetic susceptibilities were measured by magnetic curve. The results showed that the complex only emit quit weak fluorescent peak of characteristic fluorescent of Sm3+, which illustrated that the first excitation level of Sm3+ and that of the complexant can not match very well. The experimental results also showed that the fluorescent emission intensity increased with increasing of Sm content in the complex, which illustrated that Sm3+ was dispersed uniformly in the complex, and that the complex showed good magnetic property of the rare earth ion." @default.
- W2381242787 created "2016-06-24" @default.
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- W2381242787 date "2002-01-01" @default.
- W2381242787 modified "2023-09-23" @default.
- W2381242787 title "Study on the Solid Phase Coordination Synthesis of Samarium and Polyimide under Microwave Radiation and its Characterization" @default.
- W2381242787 hasPublicationYear "2002" @default.
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