Enhanced photoresponse in organically-modified oxo alternating copolymers

采用无溶剂缩聚法制备了硅酸酯-磷酸酯含氧交替共聚物。起始试剂的反应性可以通过它们的酸碱强度来设计。通过优化制备条件，可以合成硅酸盐-磷酸盐-硅酸盐或磷酸盐-硅酸盐-磷酸盐三聚体，作为有机改性含氧共聚物的基本结构单元。这些新材料可以使我们能够通过分子结构和化学来控制所得材料的化学和物理性质。一些有机改性的硅酸酯-磷酸酯共聚物显示出作为稀土离子和有机染料的良好固态溶剂的能力。掺杂聚合物表现出低阈值的全息存储或激光作用。

Silicate-phosphate oxo alternating copolymer was prepared through solventless condensation process. Reactivity of the starting reagents can be designed by the acid-base strength of them. Silicate-Phosphate-silicate or phosphate-silicate-phosphate trimer can be systhesized by optimizing the preparation conditions, which can be used as a fundamental structural units for organically-modified oxo copolymers. These new materials can enables us to control the chemistry and physics of the resultant materials through molecular structure and also chemistry. Some of organically-modified silicate-phosphate copolymers show an ability as a good solid-state solvent for rare earth ions and organic dyes. the doped polymers exhbit holographic memory or laser action with a low thresholds.