Uso das técnicas de infravermelho e de ressonância magnética nuclear na caracterização da reação ácido-base de um cimento odontológico experimental

Química Nova

Marcio José Bertolini¹  Maria Aparecida Zaghete¹  Rossano Gimenes² 

[1] ,Universidade Estadual Paulista Instituto de Química de Araraquara Araraquara SP ,Brasil

关键词: cements;    polyacrylate;    ionomer;   

DOI  :  10.1590/S0100-40422009000500028

来源: SciELO

【 摘 要 】

Glass ionomer cements (GICs) are products of the acid-base setting reaction between an finely fluoro-alumino silicate glass powder and poly(acrylic acid) in aqueous solution. The sol gel method is an adequate route of preparation of the glasses used to obtain the GICs. The objective of this paper was to compare two powders: a commercial and an experimental and to investigate the structural changes during hardening of the cements by FTIR and Al MAS NMR. These analyses showed that the experimental glass powder reacted with organic acid to form the GICs and it is a promising material to manufacture dental cements.

【 授权许可】

CC BY-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License