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聚醚酰亚胺（ＹＳ－３０）是一种可溶性的聚酰亚胺，本文对它的￣（１３）ＣＮＭＲ谱，￣１ＮＮＭＲ谱和ＣＯＳＹ谱进行了研究．经过分析，对￣（１３）ＣＮＭＲ和￣１ＨＮＭＲ谱作出了归属，确认了聚醚酰亚胺的链结构．
Polyetherimide (YS-30) is a kind of soluble polyimide. In this paper, its 13CNMR spectrum, 1NMR spectrum and COZY spectrum were studied. After analysis, ~ (13) CNMR and ~ 1H NMR spectra were assigned to confirm the chain structure of polyetherimide.