...表征了纳米球的形态和粒径；以芘为荧光探针，通过荧光检测分析测定了mPEG-g-CS的临界胶束浓度(critical micellar concentration，CMC)。
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对较低的临界胶束浓度 critical micelle concentration
水溶性丙烯酸共聚物具有表面活性，临界水溶性丙烯酸共聚物的临界胶束浓度（CMC）值为0.2％（质量分数）。
The water soluble acrylic copolymer showed surficial activity and the CMC of the critical water -soluble acrylic copolymer was 0. 2%.
通过红外光谱确定了产物的结构，并对有机硼表面活性剂的酸值、 表面张力以及临界胶束浓度等性能进行了研究。
Their structures were confirmed by IR, and the properties of these surfactants such as acid number, interfacial tension, and critical micelle concentration and so on were studied.
为了充分发挥药剂对害虫的防治效果，药液中表面活性剂的浓度必须大于临界胶束浓度。
For good effectiveness to pests, the concentration of surfactant in the liquid insecticides with conventional concentration must be more than the CMC.
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