无机-有机复合聚合物:材料研究的一个新领域

Inorganic and Organic Hybride Polymers: A New Opening for Materials Research

无机-有机复合聚合物特别是类分子筛聚合物、类多层钙钛矿和仿生物材料的合成及其应用研究成为近几年来一个热门的研究领域。我们瞄准了这一前沿领域并合成和表征了以下四个系列具有纳米孔洞的分子笼和一维、二维或三维的新型无机聚合物:(1)带有纳米尺寸空腔和孔状结构的新型过渡金属和稀土金属聚合物;(2)含有螺旋链的一维链状聚合物;(3)具有石墨形态层状结构和优异导电性能的聚合物;(4)以强金属-金属相互作用为核心、有机分子为稳定外壳的纳米线聚合物。本文总结这四个系列化合物的合成结构和特性。

Inorganic organic hybrid framework assemblies ranging from zeolite like polymers to multilayered perovskites to biomaterials have been intensively interested because of their interesting properties and potential in various applications such as electrical conductivity, magnetism, ion exchange, separation and catalysis. We have explored several ways to design and prepare inorganic chains and networks having organic molecular components and/or metal metal interactions by using transition metal ions including rare earth metal ions and organic ligands, and obtained a series of novel transition metal coordination polymers. The following polymers have been prepared and structurally characterized in our laboratory:(1) novel transition metal and rare earth metal polymers with nanometer sized cavities and porous structures; (2) the polymers having one dimensional chain structures, including many helical chains; (3) the polymers with lamellar graphite like structures and excellent conducting properties; (4) the polymers of nano wire with strong metal metal interaction in core and organic molecules as stable shell.