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Hyperbranched polymer-cored star polyfluorenes as blue light-emitting materials

Chinese Science Bulletin 2008年第18期53卷 2770-2776页

作者： HAN Yang SUN MingHao FEI ZhuPing BO ZhiShan Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Polymer Physics and Chemistry Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China

Hyperbranched polymer-cored star polyfluorenes with high molecular weights and narrow molecular weight distribution were prepared by palladium-catalyzed one-pot Suzuki polycondensation of multi- functional cores and an AB-type monomer. The optical, electrochemical and thermal properties of the hyperbranched polymer-cored star polymers were investigated. These polymers exhibited good ther- mal and color stability in solid state, and there was no significant blue-green emission after the poly- mers had been annealed in air for 2.5 h. Their three-dimensional hyperbranched structures could ef- fectively reduce the aggregation of the peripheral rigid linear conjugated polyfluorene chains.

关键词：发光二极管聚合物星形高聚物缩聚作用

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非经典结构杂多阴离子化学的研究进展

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沈阳大学学报 1994年第4期6卷 13-19页

作者：王晓芳辽宁大学化学系

本文以不饱含[ASW_9O_(33)]~9和[P_2W_(12)O_(48)]~12为结构单元,综述了一系列非经典结构杂多阴离子的缩聚方式及其结构特征。这些杂多阴离子的结构由简单到复杂,其分子量由小至大,目前有人已合了分子量近于11200之巨的N_(a27)[N_aA(34)... 详细信息

本文以不饱含[ASW_9O_(33)]~9和[P_2W_(12)O_(48)]~12为结构单元,综述了一系列非经典结构杂多阴离子的缩聚方式及其结构特征。这些杂多阴离子的结构由简单到复杂,其分子量由小至大,目前有人已合了分子量近于11200之巨的N_(a27)[N_aA(34)W_(40)O_(140)]·45—50H_2O和[KA_(S4)W_(40)O_(140)Ag^4]^(23-)等无机高分子大环杂多化分物。

关键词：非经典结构杂多阴离子结构单元缩聚作用

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