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µÚһƪ Accession number: 070310373719 Title: Polymerisable divalent di-quaternary ammonium cationic surfactant Authors: Liu, Kangkai; Gao, Baojiao; Li, Lei Author affiliation: Department of Chemical Engineering, North University of China, Taiyuan 030051, China Serial title: Shiyou Huagong/Petrochemical Technology Abbreviated serial title: Shiyou Huagong Volume: v 35 Issue: n 11 Issue date: November 2006 Publication year: 2006 Pages: p 1082-1085 Language: Chinese ISSN: 1000-8144 CODEN: SHHUE8 Document type: Journal article (JA) Publisher: Beijing Research Institute of Chemical Industry, Beijing, China Abstract: A novel polymerisable methacrylate monovalent quaternary ammonium bromide (PMQ) surfactant was synthesized from methacryloyl chloride, 11-bromoundecan-1-ol, 4-[2-(dimethylamino) ethy] morpholine and methyl bromide. The end product polymerisable methacrylate divalent diquaternary ammonium dibromide (PDQ) surfactant was prepared by a three-step synthesis: one step of acryloyl chlorinatin and two steps of quaternarizations under appropriate conditions. The product was characterized by means of elemental analysis and 1H NMR. Measurements of surface tension and conductivity at different temperatures showed that its surface activity is higher than conventional surfactants. Critical micelle concentration (CMC) of PDQ in pure water at 25¡ãC is 3.24 ¡Á 10-2 mol/L and the corresponding surface tension ¦ÃCMC is 40.95 mN/m. Number of references: 15 Database: Compendex Compilation and indexing terms, © 2007 Elsevier Inc. All rights reserved µÚ¶þƪûÓÐÕÒµ½£¬2007 Vol.70 No.5 P.366-370£¬¿ÉÄÜEI»¹Ã»À´µÃ¼°ÊÕ¼ [ Last edited by cn_wx on 2008-1-18 at 17:54 ] |

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