- 作者: 陳錦地 ; 查怡 ; 謝始榮
- 作者服務機構: 中央研究院化學研究所
- 中文摘要: The syntheses and thermal stability properties of a series of amino and nitro substituted copperporphyrins are described. The thermal decomposition temperatures of the porphyrins were determined by differential scanning calorimetry (DSC), thermogravimetric analysis(TGA), and differential thermal analysis (DTA). The on-set thermal decomposition temperatures of the unsymmetrical porphyrins were found to be high in the range of 350-405 .degree.C (DSC), 374-441 (TGA in air), 395-411. degree.C (TGA under nitrogen atmosphere), and 410-424.degree.C (DTA in air). Substituent dependent thermal stability trends were also studied. The trend is variable depending on the thermal analysis technique utilized. Possible reasons for such variation are discussed. These porphyrins are thermally robust even in the melamine-based sol-gel matrix. Containing 20% by weight of the substituted unsymmetrical copperporphyrin, melamine-based sol-gel showed no indication of decomposition until - 400.degree.C.
- 英文摘要: --
- 中文關鍵字: Metalloporphyrin; Unsymmetrical Porphyrin; Thermal Stability; Dsc; Melamine; Sol Gel
- 英文關鍵字: 金屬紫質;不對稱紫質;熱穩定;示差掃描熱分析;三聚氰胺;溶膠凝膠