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|Type:||Artigo de periódico|
|Title:||Saxs And Dsc Evaluation Of Interactions Between H 2o And Renex-100 [avaliação Por Saxs E Dsc Das Interações Entre H 2o E Renex-100]|
|Author:||De Campos D.D.P.|
Da Silva Queiroz H.A.A.
|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.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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