Enhanced photoresponse in organically-modified oxo alternating copolymers

采用无溶剂缩合法制备了硅酸盐-磷酸盐氧代共聚物。起始剂的反应活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-硅酸盐或磷酸盐-硅酸盐-磷酸盐三聚体，作为有机改性氧基共聚物的基本结构单元。这些新材料使我们能够通过分子结构和化学来控制合成材料的化学和物理。一些有机改性硅酸盐-磷酸盐共聚物表现出作为稀土离子和有机染料的良好固态溶剂的能力。掺杂聚合物具有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.