新型含硼两性表面活性剂REAB的研制

Study on a New Amphoteric Surfactant with Boron

以 1 溴十二烷与二乙醇胺烷基化合成N、N 二羟乙基十二烷基胺 (REA) ,再与硼酸酯化合成了一类新型含硼两性特种表面活性剂 (REAB) .其在pH值 6 .6～ 9.1范围内显示两性特征 :在pH值 5～ 11范围内表面活性优良 ,CMC为 1.0 34× 10 -3 mol/L、γcmc为 2 5 .6 8mN/m ;其具有中等的泡沫性能 。

A new type amphoteric surfactant with boron was synthesized from alkyl bromide,diethanolamine with boric acid.This surfactant shows the zwitteric characteristic of the pH range from 6.6 to 9.1.It appears excellent surface property (γ CMC=25.8?mN/m,CMC=1.034×10 -3?mol/L) over a wide pH range(5～11).It has middle foaming and excellent antistatic property.