HPA/MCM-48催化剂上四氢呋喃开环聚合

IN-SITE POLYMERIZATION OF TETRAHYDROFURAN ON HPA/MCM-48

根据MCM 4 8可具有纳米尺寸的孔径和孔壁的独特结构特征 ,提出了以这样的MCM 4 8作为无机基体 ,形成纳米网络粒子的设想。并设计了将催化活性中心引入MCM 4 8孔内 ,在孔内原位聚合形成纳米网络粒子的方法。以HPA为催化活性中心 ,在MCM 4 8孔内进行了四氢呋喃的原位开环聚合反应 ,通过对比聚合反应前后HPA/MCM 4 8的FT IR谱图 。

The design of a novel inorganic organic nanocomposite structure was put forward. By making use of the nano sized pores and pore walls, and also the mild conditions required for polymerization, MCM 48 modified by HPA was proposed as the inorganic component of the novel inorganic organic nanocomposite structure. HPA/MCM 48 was prepared, and characterized by XRD, TEM and FT IR methods, and was used as the catalyst in in situ polymerization of tetrahydrofuran. Evidences provided by the FT IR results identified that this in situ polymerization occurred.