On the basis of assignment of diad and triad sequences,characterizations of the main chain carbon-13 spectra of the polymers with different PO to EO ratios as well as possible sequence distribution are discussed.

• 在对其链结构进行有效归属的基础上，讨论了不同配比聚合物的核磁共振主链碳谱特点及其可能的单元链节排列顺序。