关于工科大学物理考试内容改革的探讨

探讨了工科大学物理考试内容改革的必要性;尝试把两种新的题型引入物理考试中,并对这两种新题型做了仔细研究与分析．     

Lamellar liquid crystal polymerization of sodium oleate/oleic acid/octadiene/water system

In the lamellar liquid crystallization (LLC) phase of NaOL/ OLA/H2O system, the small angle X-ray diffraction measurements show that the oleic acid is solubilized in the oil layer at first and then into the amphiphile layer. The octadiene added is also located partly in the oil layer and partly in the amphiphile layer in the LLC. With the addition of octadiene as cross-Unking agent, the LLC phase of NaOL/OIA/H2O system was polymerized under the initiation of AIBN with the protection of pure nitrogen at 60℃. Most of the double bond absorption of the monomers in IR spectra disappeared after polymerization. The polymerization takes place not only in the middle of the amphiphile layer between the double bonds of NaOL or OLA and those of octadiene, but also in the oil layer of LLC between the double bonds of OLA and those of octadiene. Interlayer spacing measurements on the copolymer proved d values decreased by about 1-2 nm compared with those of the corresponding system before the polymerization, indicati     

手性香料的合成研究进展

香料是一类具有重要意义的化合物.许多香料是手性化合物.本文综述了近年来手性香料研究的进展,特别是合成方法的研究进展.