Poly(p-phenylenevinylene) derivative was ladderized in a stepwise manner by the intramolecular oxidative cyclization using 2,3-dichloro-5,6-dicyano-para-benzoquinone and Brønsted acids, in which the careful choice of acid was crucial for obtaining soluble ladder polymer in high yield. GPC elution time became shorter and UV–vis absorption/fluorescence emission spectra exhibited peak shifts with the progress of carbon-carbon bond formation. The ladder formation efficiency was not quantitative; however, our proof-of-concept experiment opens the door for developing novel CLPs.

中文翻译：

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聚对苯撑亚乙烯基衍生物的梯化：分子内氧化环化合成多环芳烃聚合物

通过使用2,3-二氯-5,6-二氰基-对-苯并醌和布朗斯台德酸的分子内氧化环化作用，逐步将聚对苯撑亚乙烯基衍生物阶梯化，其中精心选择酸对于获得可溶物至关重要高产率的梯形聚合物。随着碳-碳键形成的进展，GPC的洗脱时间变得更短，UV-vis吸收/荧光发射光谱显示出峰移动。梯子的形成效率不是定量的。但是，我们的概念验证实验为开发新型CLP打开了大门。