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用红外光谱法研究了在聚乙烯醇（PVA）和聚乙烯吡咯烷酮（PVP）共混物中氢键的相互作用．根据相应的特征峰在共混前后的变化，证明了PVP分子中的碳基同PVA中的羟基之间存在强烈的氢键相互作用，它们是这两种高聚物能完全互溶的主要原因．
The interaction of hydrogen bonds in polyvinyl alcohol (PVA) and polyvinylpyrrolidone (PVP) blends was studied by infrared spectroscopy. According to the changes of the corresponding characteristic peaks before and after blending, it is proved that there is a strong hydrogen-bonding interaction between the carbon groups in the PVP molecule and the hydroxyl groups in the PVA, which are the main reasons for the mutual miscibility between the two polymers.