987 resultados para Pöyhtäri, Ahti: Himangan rauhanyhdistyksen historiaa 100-vuotiselta taipaleelta


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Keskustelua. Kommentti artikkeliin: Historiallinen aikakauskirja. 99 (2001) : 2, s. 196-198.

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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.

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Kirjallisuusarvostelu

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