Napredna pretraga

Pregled bibliografske jedinice broj: 150364

Effect of the Spacer Length on the Association and Adsorption Behavior of Dissymmetric Gemini Surfactants


Sikirić, Maja; Primožič, Ines; Talmon, Y.; Filipović-Vinceković, Nada
Effect of the Spacer Length on the Association and Adsorption Behavior of Dissymmetric Gemini Surfactants // Journal of colloid and interface science, 281 (2005), 1; 473-481 (međunarodna recenzija, članak, znanstveni)


Naslov
Effect of the Spacer Length on the Association and Adsorption Behavior of Dissymmetric Gemini Surfactants

Autori
Sikirić, Maja ; Primožič, Ines ; Talmon, Y. ; Filipović-Vinceković, Nada

Izvornik
Journal of colloid and interface science (0021-9797) 281 (2005), 1; 473-481

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Gemini surfactants; adsorption; association; Krafft point

Sažetak
A series of dissymmetric gemini surfactants with a general formula  C12H25(CH3)2N(CH2)sN(CH3)2C14H29 Br2 designed as 12-s-14, where s = 2, 6 and 10, was synthesized and their physicochemical properties were investigated. The effect of the spacer length on the Krafft temperature, adsorption at the air/solution interface and association in aqueous solution was studied by tensiometry, conductometry and cryo-transmission electron microscopy. The Krafft temperature was found to increase linearly with the spacer length. In the submicellar concentration range the dissymmetric 12-s-14 surfactants display ion pairing and premicellar association. Adsorption at the air/solution interfaces and micellization in aqueous solution are similar to the behavior of their symmetric counterparts and strongly depend on the spacer length.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Projekt / tema
0098031

Ustanove
Institut "Ruđer Bošković", Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus