Xerogel p-anisidinapropilsílica: estudo da estabilidade térmica e da resistência à lixiviação com solventes p-anisidinepropylsilica xerogel: thermal stability and resistance to leaching by solvents

Autor:	Leonardo Franken, Lisiane S. dos Santos, Elina B. Caramão, Tania M. H. Costa, Edilson V. Benvenutti
Jazyk:	English<br />Spanish; Castilian<br />Portuguese
Rok vydání:	2002
Předmět:	p-anisidine infrared stationary phase sol-gel thermal stability Chemistry QD1-999
Zdroj:	Química Nova, Vol 25, Iss 4, Pp 563-566 (2002)
Druh dokumentu:	article
ISSN:	0100-4042 1678-7064
DOI:	10.1590/S0100-40422002000400010
Popis:	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.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/1331b6400e634e4bb64da85fe7951477 Zobrazit plný text záznamu View record in DOAJ