摘要
Two Gemini-type surfactants ditetradecylnaphthalene（benzene） disulfonate（DTNDS and DTBDS） were designed and synthesized in the laboratory.In a closed reactor,α-Olefin sulfonic acid and naphthalene（benzene） were added as a 2∶1 molar ratio,then,the mixtures was heated to 150℃ rapidly under stirring well,and reacted for 5h remaining the above temperature to form ditetradecylnaphthalene（benzene） disulfonic acid without adding catalyst.The ditetradecylnaphthalene（benzene） disulfonic acid was neutralized to pH 8-9 by 30% sodium hydroxide and formed corresponding sodium sale.The conversions of naphthalene and benzene were 94.7 and 95.2%.DTNDS and DTBDS concentration were 94.6 and 94.36% in the product purified,respectively.Various surface properties of Gemini-type surfactants were examined in detail.It was found that the critical micelle concentration of DTNDS and DTBDS were 8.08×10-6 and 1.54×10-4mol.1-1,respectively.The results indicated both DTMDS and DTBDS have very high surface active.Moreover,the synthesizing route of ditetradecyl-naphthalene（benzene）disulfonate,the measurement method of the conversion,the optimization reaction conditions and the structure analysis of products were discussed closely.
Two Gemini -type surfactants ditetradecylnaphthalene （benzene） disulfonate （DTNDS and DTBDS） were designed and synthesized in the laboratory. In a closed reactor, α -Olefin sulfonic acid and naphthalene （benzene） were added as a 2：1 molar ratio, then, the mixtures was heated to 150℃ rapidly under stirring well, and reacted for 5h remaining the above temperature to form ditetradecylnaphthalene （benzene） disulfonic acid without adding catalyst. The ditetradecylnaphthalene （benzene） disulfonic acid was neutralized to pH 8 -9 by 30% sodium hydroxide and formed corresponding sodium sale. The conversions of naphthalene and benzene were 94. 7 and 95.2%. DTNDS and DTBDS concentration were 94. 6 and 94. 36% in the product purified, respectively. Various surface properties of Gemini -type surfactants were examined in detail. It was found that the critical micelle concentration of DTNDS and DTBDS were 8.08 × 10^-6 and 1.54 × 10^-4mol. 1^-1 , respectively. The results indicated both DT- MDS and DTBDS have very high surface active. Moreover, the synthesizing route of ditetradecyl- naphthalene （benzene） disulfonate, the measurement method of the conversion, the optimization reaction conditions and the structure analysis of products were discussed closely.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2006年第7期851-855,共5页
Chemical Research and Application
基金
赞成科研基金和试验基地对外开放项目资助
