Wetting, foaming, and emulsification properties of novel methyltriphenylphosphonium carboxylate ionic liquid surfactants. Issue 1 (2nd January 2020)

• Record Type: Journal Article
• Authors: Duan, Shengfu; Jiang, Yajie; Geng, Tao; Ju, Hongbin; Wang, Yakui
• Is Part Of: Journal of dispersion science and technology. Volume 41:Issue 1(2020)
• Page Start: 47
• Page End: 53
• Publication Date: 2020-01-02
• Subjects: Methyltriphenylphosphonium carboxylate -- ionic liquid surfactants -- foaming properties -- emulsification -- wettability; Emulsions -- Periodicals; Suspensions (Chemistry) -- Periodicals; Emulsions; Suspensions; 541.34
• DOI: 10.1080/01932691.2018.1541416
• Languages: English
• ISSNs: 0193-2691

Abstract

Abstract: Novel methyltriphenylphosphonium carboxylate ionic liquid (IL) surfactants [Ph3 PCH3 ][CH3 (CH2 )6 COO] (MTPP-O), [Ph3 PCH3 ][CH3 (CH2 )8 COO] (MTPP-D), [Ph3 PCH3 ][CH3 (CH2 )10 COO] (MTPP-L), [Ph3 PCH3 ][CH3 (CH2 )12 COO] (MTPP-M), [Ph3 PCH3 ][CH3 (CH2 )14 COO] (MTPP-P), [Ph3 PCH3 ][CH3 (CH2 )16 COO] (MTPP-S) were synthesized via quaternization triphenylphosphine with dimethyl carbonate and anion exchange with different carboxylic acids successively. The structures of these IL surfactants were confirmed by FT-IR and 1 H-NMR. Meanwhile, the wetting, foaming, and emulsification properties of these IL surfactants were studied in this paper. The results revealed that methyltriphenylphosphonium carboxylate IL surfactants have lower foaming properties than quaternary ammonium salts with the same anionic units. And, these IL surfactants show better emulsification ability to soybean oil than that of liquid paraffin. Furthermore, contact angle results indicated that these IL surfactants have different wettability for parafilm and the contact angle increases at a higher concentration for MTPP-L, MTPP-M, and MTPP-P. Graphical Abstract: UF0001