16156-51-7Relevant articles and documents
Synthesis and surface activity study of novel branched zwitterionic heterogemini fluorosurfactants with CF3CF2CF2C(CF3)2 group
Lin, Chao,Pan, Renming,Xing, Ping,Jiang, Biao
, p. 35 - 41 (2018/08/17)
In this work, we report a facile synthesis of four fluorinated zwitterionic heterogemini surfactants bearing branched CF3CF2CF2C(CF3)2- group with perfluoro-2-methyl-2-pentene as starting material. The surface activities of as-prepared four surfactants were found to be better than that of sodium perfluorooctanoate. Meanwhile, our fluorinated surfactants with double hydrophobic chains showed much better surface activities than the monomeric fluorinated surfactant. With the introduction of an alkyl chain, the CMC could be reduced more than 200 times to 6.30 × 10?5 mol/L, together with a surface tension of 18.66 mN/m. When a new fluorinated chain was introduced in the molecular structure, the CMC could be as low as 1.74 × 10?6 mol/L, along with a surface tension of 18.42 mN/m. When the alkyl chain length is 7, the surfactant has the same ability with the double fluorinated chain one to reduce the surface tension.
A PROCEDURE FOR ALCOHOL INVERSION USING CESIUM ACETATE
Huffman, John W.,Desai, Ranjit C.
, p. 553 - 558 (2007/10/02)
A convenient and efficient procedure for alcohol inversion by means of the reaction of mesylates or alkyl halides with cesium acetate is described.
