新型表面活性剂——双烷基双磺酸钠基二苯甲烷的合成与性能

A new surfactant-synthesis and properties of dialkyl disulfonate diphenyl dethane

以二苯甲烷和α-烯烃为原料,在催化剂作用下,合成出双烷基二苯甲烷,用氯磺酸磺化双烷基二苯甲烷,生成双磺酸基双烷基二苯甲烷,再用NaOH溶液中和,制得双烷基双磺酸钠基二苯甲烷双子表面活性剂.对合成产物进行了红外光谱分析,其结构与预期结构相符.测定了其水溶液的表面张力、临界胶束浓度,结果表明其具有较高的表面活性.

With the raw material of diphenyl methane and straight chain alkene at the action of catalyst, dialkyl diphenyl methane is synthesized. Disulfonic dialkyl diphenyl methan is synthesized by sulfonting with chlorine sulfonic acid. After the action of neutralization, the dialkyl disulfonic sodium diphenyl methane Gemini surfactant is composed. We have determined the surface tension and the value of cmc, the experiment results indicate the Gemini surfactants have better surface activation.