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用(13)~C-NMR波谱研究了稀土聚环氧丙烷的微结构。通过分析不同水铝比的催化体系所得产物的(13)~C-NMR谱图,初步探讨了聚合机理。以Lorentz线型模拟不同级分聚合物的(13)~C-NMR谱,用计算机进行分峰处理。定量估算它们的等规度。用X-射线衍射方法测得不同微观结构聚环氧丙烷的结晶性。
The microstructure of rare earth polypropylene oxide was studied by (13) ~ C-NMR spectroscopy. Through the analysis of (13) ~ C-NMR spectra of the products obtained from the catalytic system with different water / aluminum ratio, the polymerization mechanism was preliminarily discussed. The (13) ~ C-NMR spectra of Lorentz linear analogue polymers with different fractions were fractionated by computer. Quantitatively estimate their equivalence. The crystallinity of different microstructured polypropylene oxide was measured by X-ray diffraction.