Xerogel p-anisidinapropilsílica: estudo da estabilidade térmica e da resistência à lixiviação com solventes

Química Nova

Leonardo Franken¹  Lisiane S. Dos Santos¹  Elina B. Caramão¹  Tania M. H. Costa¹  Edilson V. Benvenutti¹ 

[1] ,Universidade Federal do Rio Grande do Sul Instituto de Química Porto Alegre RS

关键词: p-anisidine;    infrared;    stationary phase;    sol-gel;    thermal stability;   

DOI  :  10.1590/S0100-40422002000400010

来源: SciELO

【 摘 要 】

The xerogel p-anisidinepropylsilica was obtained. This solid presents some residual paraffin and also a small fraction of high organofunctionalized material that was leached in polar solvent. The xerogel purification could be achieved by exhaustively washing with hexane and dichloromethane solvents, or submitting the xerogel to thermal treatment up to 300 ºC, in vacuum. The resulting purified xerogel material present an appreciable thermal stability and resistance to leaching by solvents.

【 授权许可】

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