中文摘要：

以FT-IR方法研究了水，C12-EOx-C12·2Br／正己醇／正庚烷形成的W／O微乳中水的状态．结果表明，其中的水存在4种状态，分别为阳离子头基结合水、反离子结合水、类似本体的水以及束缚在微乳栅栏层中的水．由解卷积技术分解FT-IR谱图，进而获得每个表面活性剂分子对应于这4种状态水分子的数目nN＋，nBr-，nb和nf．随着水含量（W0）增加，nb急剧增大，nN＋少许上升，而nf和nBr-维持不变，这说明微乳水核逐渐长大，且在所考察W0范围内，表面活性剂头基解离度保持不变．

英文摘要：

The states of water in the W/O microemulsions formed in H20/C12-EOx-C12·2Br/n-hexanol/ n-heptane systems have been investigated by Fourier transform infrared spectroscopy （FT-IR）. The results showed that there existed four states of water in the microemulsions, which were head-group-bound water, Br-bound water, bulklike water and trapped water in the interface of the microemulsion water, respectively. The nN＋, nBr-, nb and nf, which represented respectively the numbers of the water corresponding to the above four states per surfactant molecule, were obtained by a deconvolution technique. With increasing water content Wo, nb was increased rapidly but nN＋ increased a little, whereas nBr- and nf were kept almost constant. These indicated that the water pool of the microemulsion grew gradually and the degree of the counter-ion dissociation was kept unchanged over the range of the examined Wo.