论文部分内容阅读
用~(13)C{~1H}及 APT 为主要手段,以不同分子量的 PEG 和 PPG 为模型化合物进行研究,利用这些结果,结合~1H-NMR 信息,建立了表征聚氧乙烯-聚氧丙烯嵌段聚醚微观结构和分子量的方法。
1H-NMR and 13C NMR spectra were used to characterize the structure of polyoxyethylene-polyoxypropylene copolymers with ~ (13) C {~ 1H} and APT as the main methods, and PEG and PPG with different molecular weights as model compounds. Block polyether microstructure and molecular weight of the method.