The combination of reversible, dynamic covalent bonds and π‐conjugated oligo‐(phenylene ethynylene)s is utilized for exchange reactions between two acceptors and one donor containing copolymer in the solid state upon thermal treatment. The specific molecular design of the polymers allows upon thermally triggering the reshuffling of the π‐conjugated donor and acceptor moieties. Depending on the nature of the acceptor, an increased and a decreased fluorescence resonance energy transfer (FRET), respectively, can be observed for the mixing of the copolymers or the demixing of a donor–acceptor copolymer.

中文翻译：

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π共轭低聚（亚苯基乙炔）s的可逆Diels-Alder反应热交换荧光共振能量转移

可逆的动态共价键和π-共轭的低聚（亚苯基乙炔基）的组合用于热处理时两个受体与一个含固态供体的共聚物之间的交换反应。聚合物的特定分子设计允许热触发π共轭供体和受体部分的改组。取决于受体的性质，可以观察到共聚物混合或供体-受体共聚物解混合分别增加和减少的荧光共振能量转移（FRET）。