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| Type: | Artigo de periódico |
| Title: | Avaliação por SAXS e DSC das interações entre H2O e Renex-100 |
| Title Alternative: | SAXS and DSC evaluation of interactions between H2O and Renex-100 |
| Author: | Campos, Daniella Dias Palombino de Cassu, Silvana Navarro Garcia, Renata Batista Rivero Queiroz, Hiure Anderson Alves da Silva Gonçalves, Rene Francisco Boschi Kawachi, Elizabete Yoshie |
| Abstract: | The aggregation behavior of the non-ionic surfactant Renex-100 in aqueous solutions and mesophases was evaluated by SAXS in a wide range of concentrations, between 20 and 30 °C. Complementary, water interactions were defined by DSC curves around 0°C. SAXS showed that the system undergoes the following phase transitions, from diluted to concentrated aqueous solutions: 1) isotropic solution of Renex aggregates; 2) hexagonal mesophase; 3) lamellar mesophase; and 4) isotropic solution. DSC analysis indicated the presence of interfacial water above 70wt%, which agreed with the segregation of free water to form the structural mesophases observed by SAXS bellow this concentration. |
| Subject: | interfacial water non-ionic surfactant mesophase |
| Editor: | Sociedade Brasileira de Química |
| Citation: | Química Nova. Sociedade Brasileira de Química, v. 35, n. 2, p. 355-359, 2012. |
| Rights: | aberto |
| Identifier DOI: | 10.1590/S0100-40422012000200023 |
| Address: | http://dx.doi.org/10.1590/S0100-40422012000200023 http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000200023 |
| Date Issue: | 1-Jan-2012 |
| Appears in Collections: | Unicamp - Artigos e Outros Documentos |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| S0100-40422012000200023.pdf | 432.56 kB | Adobe PDF | View/Open |
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