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通过原位聚合制备掺杂Sm(TTA)3Phen的低黏度PMMA溶液,单面载玻片提拉成膜。借助傅立叶红外光谱仪(FT-IR)、扫描电子显微镜(SEM)、紫外-可见分光光度计(UVPC)、荧光光谱仪(PL)对掺杂PMMA复合薄膜进行形貌、结构、光学性能表征。结果表明:Sm(TTA)3Phen配合物在PMMA基材中仍然保持原有八配位结构;当Sm(TTA)3Phen转光粉掺量从1%到10%时,复合薄膜的可见光透过率均大于90%;3%掺量时,发射红光645nm处转光强度骤增为1%掺量的4.2倍,而后增加掺量,转光强度趋于平缓。采用低粘度提拉法成膜可以制备膜厚可控、高可见光透过、强荧光的PMMA转光膜。
The low-viscosity PMMA doped with Sm (TTA) 3Phen was prepared by in-situ polymerization. The morphology, structure and optical properties of the doped PMMA films were characterized by FT-IR, SEM, UVPC and PL. The results show that Sm (TTA) 3Phen complex still retains its original octa coordinate structure in PMMA. When the content of Sm (TTA) 3Phen is from 1% to 10%, the visible light transmittance When the content is 3%, the light intensities of the emitting red light at 645nm increase sharply to 4.2 times of the content of 1%, then the content of the red light increases with the increase of light intensity. Using low-viscosity Czochralski method can be prepared film thickness controllable, high-visible light transmission, strong fluorescence PMMA film.