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前言环氧乙烷(EO)和环氧丙烷(PO)的共聚物常作为消泡剂,助染剂和石油破乳剂等而广泛应用于轻工,医药,油田化学等工业部门。这种聚合物的性能除了取决于共聚物的组成,分子量,分子量分布外,还与分子的链结构密切相关。U.H.Gibson and Q.Quick用红外光谱970cm~(-1)谱带对低分子量(3000—4000)的EO～PO无规共聚物进行了一系列的研究。本文通过红外光谱的970cm~(-1)和930cm~(-1)二个谱带的相对强度的关系来研究EO～PO超高分子量(≧10~6)无规共聚物中EO单元或PO单元在分子链上的分布情况。
Foreword Copolymers of ethylene oxide (EO) and propylene oxide (PO) are widely used in light industrial, pharmaceutical, oilfield chemical and other industrial sectors as defoamers, dyestuffs and petroleum demulsifiers. The properties of this polymer depend not only on the composition, molecular weight and molecular weight distribution of the copolymer, but also on the chain structure of the molecule. U.H. Gibson and Q.Quick conducted a series of studies on low molecular weight (3000-4000) EO-PO random copolymers using the 970 cm -1 band of the infrared spectrum. In this paper, the relationship between the relative intensities of 970cm ~ (-1) and 930cm ~ (-1) bands in EO ~ PO was investigated in this paper. Unit in the molecular chain distribution.