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合成了聚苯基缩水甘油醚(PI)和聚萘基缩水甘油醚(PII),并用~(13)C NMR,IR 等方法鉴定了它们的结构。研究了PI,PII及其模型化合物(单体)的荧光光谱,发现它们的稀溶液只存在单分子荧光。从稀溶液—浓溶液—固体的发射光谱的变化可以看出,当高分子相互靠近到一定程度,在长波方向呈现激基缔合物荧光峰。进一步从浓度效应论证了这是高分子链间芳环相互作用的贡献。这一结果对阐明高分子存在链间激基缔合物提供了新的实验依据。
Poly (phenylglycidyl ether) (PI) and poly (naphthyl) glycidyl ether (PII) were synthesized and their structures were identified by ~ (13) C NMR and IR. Fluorescence spectra of PI, PII and its model compounds (monomers) were investigated and found to have only one molecule of fluorescence in their dilute solution. From the changes of the emission spectra of dilute solution - concentrated solution - solid, it can be seen that when the polymers are close to each other to a certain degree, they exhibit the fluorescence peak of excimer in the long wave direction. It is further demonstrated from the concentration effect that this is the contribution of the aromatic ring interaction between the polymer chains. This result provides a new experimental basis for elucidating the existence of inter-chain exciplexes in macromolecules.