Synthesis, surface activity and aggregation behavior of Gemini imidazolium surfactants 1,3-bis(3-alkylimidazolium-1-yl) propane bromide文档.pdfVIP

Colloids and Surfaces A: Physicochem. Eng. Aspects 467 (2015) 1–8 Contents lists available at ScienceDirect Colloids and Surfaces A: Physicochemical and Engineering Aspects j o u rn a l h o m e p ag e: w w w. elsev /locate/cols urfa Synthesis, surface activity and aggregation behavior of Gemini imidazolium surfactants 1,3-bis(3-alkylimidazolium-1-yl) propane bromide Chengcheng Ren, Fang Wang ∗ , Zhiqing Zhang, Huihui Nie, Nan Li, Mei Cui College of Science, China University of Petroleum, 66 West Changjiang Road, Qingdao, Shandong 266580, PR China h i g h l i g h t s g r a p h i c a l a b s t r a c t • [C -3-C im]Br (n = 8, 10, 12) were n n 2 synthesized and characterized. • [C -3-C im]Br with longer alkyl n n 2 chain length had lower cmc. • They showed different micellization process within 293.15–313.15 K. • The micropolarity, Nagg of micelles decreased with alkyl chain length increasing. • The aggregation size of [C12-3- C12im]Br2 was distributed in a wide range. a r t i c l e i n f o a b s t r a c t Article history: A novel class of Gemini imidazolium surfactants 1,3-bis(3-alkylimidazolium-1-yl) propane bromide [C - n Received 26 August 2014 3-Cn im]Br2 (n = 8, 10, 12) were synthesized and characterized by FT-IR, 1H NMR and elemental analysis. Received in revised form 29 October 2014 The surface activity