Citation:
DING Wei, SONG Chenglong, LI Boyang. Synthesis of Nonylphenol Betaine Amphoteric Surfactant and Its Tolerance to Temperature and Salt[J]. Chinese Journal of Applied Chemistry,
;2015, 32(8): 922-930.
doi:
10.11944/j.issn.1000-0518.2015.08.140439
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Under the action of catalyst,the nonylphenol betaine amphoteric surfactant (NSZ) was synthesized from nonylphenol,epichlorohydrin,dimethylamine and 3-chloro-2-hydroxy propyl sulfonic acid sodium by etherification,amination,and quaternization,and the optimum reaction conditions were determined.The optimum synthesis conditions of nonylphenol chlorohydrin ether are:the material ratio n (nonylphenol):n(epichlorohydrin) was 1:4,the total amount of the catalyst tetrabutyl ammonium bromide was 4%(molar fraction) relative to nonylphenol,the reaction time was 4 h and the reaction temperature was 95℃.The optimum synthesis conditions of nonylphenol tertiary amine are:the material ratio n(nonylphenol chloro ether):n(dimethylamine):n(NaOH) was 1:2.5:1.1,the reaction time was 4 h and the reaction temperature was60℃.The optimum synthesis conditions of NSZ are:the volume ratio of isopropanol to water was 2:1,the reaction temperature was 85℃,the reaction time was 24 h,the material ratio n(3-chloro-2-hydroxypropanesulfonate):n(nonylphenol tertiary) was 1.2:1,the pH of the reaction system was 8~9.The interface properties,emulsifying properties and thermal stability of NSZ were measured under the condition of high temperature and high salinity,the results showed that NSZ had a good tolerance to temperature and salt.
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