1.The structure and properties of polyorganosiloxane-acrylate emulsion copolymer were investigated by IR, XPS, DSC, 1H-NMR, WAXD.
利用红外谱、能谱、差热分析、核磁振、X线衍等方法对硅氧烷改性丙烯酸物的结构和性能进行了研究。
2.The pyrazoles ramification containing dithioether is synthesized by one-step method and characterized by H-NMR, IR and UV-Vis spectra.
并采用氢核磁振,红外谱和紫外吸收谱等手段进行了表征。
3.Nonnatural amino acid 3-(4-thiazolyl)-D,L-alanine hydrochloride and its four intermediates were synthesized, their structures were detenmined by IR,NMR,elementary analysis and melting point.
4.The structure of neostellerin, which was elucidated by NMR, especially 2D NMR analysis, was different from other daphnane type diterpenes isolated from this plant.