Fluorescence Quenching of Anthracene by N,N－Diethylaniline and Phenothiazine in Triton X－ 100／n－C10H21OH／H2O Microemulsion

The photo-induced electron transfer reactions of anthracene with N, N-diethylaniline (DEA) and phe-not hiazine(PTZ) occur in the membrane phase of a Triton X-100/n-C10H21OH (1-decanol)/H2O microemul-sion. DEA and PTZ exist in the membrane phase of the microemulsion. Anthracene exists in the oil continu-ous phase of the W/O microemulsion and in the oil core and membrane phase of the O/W microemulsion.     

乳状液膜分离肌酐的研究

以液体石蜡为膜相、以氧化环糊精为内相捕捉剂制备一种新的乳状液膜，尝试运用其清除分离肌酐。实验发现当外相肌酐溶液浓度为1．3g/L，载体月桂醛含量为5％，内相氧化环糊精浓度为10％时，乳状液膜吸附容量为22．5mg／g。内相氧化环糊精的浓度对单位吸附量起决定作用。此种吸附剂对氨基酸吸附量仅为肌酐的1／10，这为其在含大量氨基酸的人体环境中有效的清除肌酐提供了优良的选择性。     

二(2,4,4-三甲基戊基)单硫代膦酸-上胺205-正庚烷乳状液膜萃取分离钪(Ⅲ)、铁(Ⅲ)和镥(Ⅲ)

本文研究了外水相ｐＨ值、流动载体浓度、表面活性剂浓度、内相解析酸浓度、水乳比、油内比等因素对二（２，４，４－三甲基戊基）单硫代膦酸（Ｃｙａｎｅｘ３０２）－上胺２０５－正庚烷乳状液 膜迁移Ｓｃ（Ⅲ）的影响。在一定条件下，Ｓｃ（Ⅲ）可以快速而完全地迁移，有可能实现Ｓｃ（Ⅲ）与Ｆｅ（Ⅲ）、Ｌｕ（Ⅲ）的分离。     

MULTI-SCALE STRUCTURES IN EMULSION AND MICROSPHERE COMPLEX SYSTEMS

Multi-scale structures involved in emulsion and microsphere complex systems are presented and discussed. The stability and spatio-temporal structures of emulsions, as well as nano-structures formed on the surface of microspheres after polymerization, are affected by the molecular emulsifier/stabilizer structures and the adsorbed emul-sifier/stabilizer nano-structures on the oil/water interface. The broad size distribution and variation of surface features of droplets are responsible for variations of the adsorbed emulsifier/stabilizer structures and the stability of the emulsions. On the other hand, preparation of a uniformly sized emulsion and employment of a combined emulsifier/stabilizer system can preserve the stability of the emulsions and microspheres. The above phenomena should be modeled by a multi-scale method, In order to maintain the stability of individual emulsion systems and realize the desired nano-structures of microspheres by choosing adequate emulsifier/stabilizer and experimental parameters.     

影响环氧树脂E-44相反转乳化的因素

研究了乳化剂的HLB值、乳化剂浓度、乳化温度、搅拌强度对环氧树脂E-44相反转乳化中临界含水量Rf值与乳状液稳定性的影响,探讨了环氧树脂E-44相反转机理。实验结果表明环氧树脂E-44从W/O向O/W相反转的发生与乳化剂的HLB值与浓度、乳化温度、搅拌强度等因素都有关,其Rf值随着乳化条件的不同是动态变化的。     

Cyanex 272-Span 80-甲苯乳状液膜迁移分离锌、镉及其它元素的研究

用Cyanex 272-Span 80-甲苯乳状液膜研究了Zn²⁺的迁移行为,在适宜条件下,5min内锌的迁移率达95%以上。而在此条件下,与锌性质相近的镉、铜、钴、镍、汞等金属离子不迁移或迁移率很低。因此,用此乳状液膜体系可将锌与镉及其它常见离子分离。     

用双（2，4，4－三甲基戊基）膦酸－Span80－甲苯乳状液膜迁移、分离稀土离子的研究

用双（２，４，４－三甲基戊基）膦酸－Ｓｐａｎ８０－甲苯乳状液膜研究了稀土离子的迁移行为。当膜相含１０ｘ１０￣（－３）～３．０ｘ１０￣（－３）ｍｏｌ／Ｌ双（２，４，４－三甲基戊基）膦酸和２％～４％（Ｗ／Ｖ）Ｓｐａｎ８０，内相含０．５０～２．０ｍｏｌ／ＬＨＣｌ，外相的ｐＨ为３．５～５０时，所有稀土离子都能快速并完全迁移。根据各稀土离子在此乳状液膜体系中迁移性质的差别，控制外相酸度，试验了稀土离子相互之间的分离情况。试验表明，用此乳状液膜体系分离稀土离子有良好的应用前景．     

镍在乳状液膜体系中的迁移行为

研究了镍在乳状液膜分离体系中的迁移行为。在此分离体系中,以煤油作为膜溶剂,span80为表面活性剂,磷酸三丁酯(TBP)为载体。详细讨论了制乳时间和混合时间、span80和TBP浓度、乳水比和油内比、内相NH。和外相HCl的浓度对镍迁移率的影响,确立了最佳分离条件。     

Forward-backward multiplicity correlations 4.5 A GeV/c ^16O-emulsion interactions

A detailed study of the mechanisms of the emissions of pions and protons in the forward and backward hemispheres in 4.5 A GeV/c oxygen-emulsion interactions has been carried out. The correlations between the multiplicities of secondary charged particles in the backward and forward hemispheres are investigated.     

结合有效介质理论的乳状液太赫兹光谱分析

原油乳状液对原油的长距离输运具有重要影响,乳状液的油、水状态及相互作用机制还需新理论和新方法获得新认识,基于有效介质理论,本文研究了原油乳状液太赫兹光谱响应特征.通过太赫兹时域光谱系统测试得到了含水率为0～28％的原油乳状液的太赫兹时域光谱,结合傅里叶变换计算了吸收系数和介电常数等光学参数,同一频率下吸收系数等光学参数...