Preparation and Catalytic Application of Poly 4-Vinylpyridine Microspheres

Cao LJ; Wang G; Shi L; Yang M; Sun DB

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Preparation and Catalytic Application of Poly 4-Vinylpyridine Microspheres

机译：聚4-乙烯基吡啶微球的制备及催化应用

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Poly 4-vinylpyridine (P4VP) microspheres between 170 and 728 nm were synthesized by Emulsifier-Free Emulsion Polymerization. The monomer concentration, ionic strength, and initiator concentration affected the microsphere size and size distribution. The increasing monomer concentration led to the increase of microsphere size, whereas the size distribution of the resultant P4VP microspheres increased with the increasing ionic strength of the reaction systems. Mo(O-2)(2)O center dot 2DMF was successfully anchored onto the P4VP microspheres by ligand exchange, and the heterogeneous catalyst showed high-catalytic activity for epoxidation of cis-cyclooctene with environmentally friendly hydrogen peroxide. The size and morphology of the supported microspheres has important influence on the catalytic activity.

机译：通过无乳化剂乳液聚合合成了介于170和728 nm之间的聚4-乙烯基吡啶（P4VP）微球。单体浓度，离子强度和引发剂浓度影响微球尺寸和尺寸分布。单体浓度的增加导致微球尺寸的增加，而所得P4VP微球的尺寸分布随反应体系离子强度的增加而增加。 Mo（O-2）（2）O中心点2DMF通过配体交换成功地锚定在P4VP微球上，并且该非均相催化剂对环境友好的过氧化氢对顺式环辛烯的环氧化表现出高催化活性。负载的微球的大小和形态对催化活性有重要影响。

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《Journal of Applied Polymer Science》 |2010年第6期|共6页
作者
Cao LJ; Wang G; Shi L; Yang M; Sun DB;
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正文语种 eng
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4-vinylpyridine; microspheres; emulsifier-free emulsion polymerization; epoxidation; supported catalyst;

机译：4-乙烯基吡啶;微球;无乳化剂乳液聚合;环氧化;负载型催化剂;

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Preparation and Catalytic Application of Poly 4-Vinylpyridine Microspheres

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