The origin of the fluorescence quenching of P1 and P2 for trivalent metal ions in aqueous solution arised from two factors: energy or electron transfer and interchain aggregation.

• 3、设计、合成了三个具有不同侧链结构的聚对苯撑乙炔(PPE)的衍生物，其主链分别带有叔胺基团(P1)、烷氧长链(P2)和长烷基链(P3)。