用双氯磺酰亚胺 (BCSA)与 1,1 二氢全氟十二醇作用合成了双全氟十二醇磺酰亚胺 (BPSA) .在BCSA与全氟十二醇的摩尔比为 1∶2 ,反应温度 110℃ ,反应时间 1h条件下 ,对BCSA的摩尔收率m达到 90 % .用NH3 中和BPSA制得BPSA胺盐 ,BPSA胺盐对BPSA的摩尔收率m达 86 .6 % ,用IR ,1HNMR对BPSA及其胺盐的结构进行了确证 .用电导率法、表面张力法测得BPSA胺盐的临界胶束浓度cCMC达 1.1× 10 -4 mol/L .结果表明BPSA胺盐具有较高的表面活性 Perfluorododecyl sulfosuccinimide (BPSA) was synthesized by the reaction of bischlorosulfonimide (BCSA) with 1,1-dihydroperfluorododecanol. When the molar ratio of BCSA to perfluorodecanol was 1 : 2, the reaction temperature was 110 ℃, the reaction time was 1h, the molar yield of BCSA reached 90%. BPSA amine salt was neutralized with NH3, BPSA amine salt to BPSA molar yield m 86.6 %, The structure of BPSA and its amine salt was confirmed by IR and 1HNMR.The critical micelle concentration (cCMC) of BPSA amine salt measured by conductivity method and surface tension method was 1.1 × 10 -4 mol / L. The results showed that BPSA Amine salts have high surface activity