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浓度为100倍临界胶团浓度(cmc)的月桂醇聚氧乙烯(23)醚的1HNMR自旋-晶格弛豫时间、自旋-自旋弛豫时间和核-核Overhauser效应谱表明,处于胶团核外面的亲水聚氧乙烯链呈卷曲收缩状均匀地堆积在胶团核的表面,在结构上形成了一个包含一定量水分子的厚而疏松的亲水网络层.亲水网络层是和溶剂(即水)相溶合的,这样可以作为一个过渡层保持胶团溶液的稳定.1HNMR弛豫时间表明亲水聚氧乙烯链的运动和疏水烷基链的运动一样,都是受阻的.2D NOESY实验所观察到的胶团核外亲水链和它内部的疏水链质子间的相互作用,直接证明了Brij-35胶团亲水部分和疏水部分质子间距很短.
The 1HNMR spin-lattice relaxation time, spin-spin relaxation time and nucleus-nucleus Overhauser effect spectrum of the lauryl alcohol (23) ether at a concentration of 100 times the critical micelle concentration (cmc) Hydrophilic polyoxyethylene chain outside the micelle nucleus shrinks and contracts uniformly on the surface of the micelle nucleus to form a thick and loose hydrophilic network layer containing a certain amount of water molecules. Is compatible with the solvent (ie, water) and thus maintains the micellar solution stable as a transitional layer.1HNMR relaxation time indicates that the hydrophilic polyoxyethylene chains are blocked as well as the hydrophobic alkyl chains The interaction between the hydrophilic core of micelles and the hydrophobic chain protons inside it observed by the 2D NOESY experiment directly demonstrated that the distance between the hydrophilic and hydrophobic parts of the Brij-35 micelles is very short.