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水溶性單體在水相中以鈷金屬錯合物催化之活性自由基聚合
Thesis

水溶性單體在水相中以鈷金屬錯合物催化之活性自由基聚合

杜宗翰
Masters, 國立清華大學, 化學系
2012

Abstract

活性自由基聚合 鈷調控自由基聚合 丙烯酸甲酯 丙烯酸 功能性高分子 Living radical polymerization Cobalt-mediated radical polymerization Cobalt salen Acrylic acid Di(pyridin-2-yl)methyl acrylate Functional polymers
Acrylic acid polymerization has been mediated by water soluble (salen*)CoII complexes. The living characters of linear increased molecular weight with conversion, relatively low polydispersity values, and the synthesis of block copolymer were approached. The kinetic study with different amount of azo-initiator indicated that the control process is mainly based on reversible termination pathway and the equilibrium constant was estimated as 2.4 x10-9. Functional monomer, “Di(pyridin-2-yl)methyl acrylate” (DPyMA), which can coordinate with metal ions, was synthesized successfully. Poly(DPyMA) and DPyMA coordinated copper complex were also obtained. However, the reaction of the CuBr2 and poly(DPyMA) led to the precipitation which was proposed as the crosslinked product of poly(DPyMA) and Cu ions. Living radical polymerization of DPyMA is still being processed.

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