介孔分子筛孔径调变技术

介孔分子筛孔径调变技术是介孔分子筛成为新型材料的有效工具。介绍了一些孔径调变技术的由来和发展动态，特别是使用特殊结构表面活性剂的新模板技术；讨论了不同技术路线下各种孔径调变技术的调变机理、影响调变行为的因素、各自的特点及调变效果等。     

超微孔分子筛研究的新进展

综述了近年来颇受关注的一类多孔材料，即孔径尺寸在超微孔范围(1．0～2．0nm)内的分子筛材料的新近研究进展。着重介绍了近期出现的利用超分子化学模式和采取特种合成路线制备超微孔分子筛的方法，并总结和讨论了近期研究现状、研究结果及其机理。     

苯乙烯在MCM-41介孔材料中聚合的研究

The polymerization of styrene in the media of MCM-41 is carried out by means of host-guest polymerization of styrene in MCM-41 mesoporous material with the aim to investigate the effects of interface and confinement of MCM-41 on host-guest interactions. Detailed physical properties of the mesoporous MCM-41 material containing polystyrene is characterized by XRD(X-ray diffraction), FT-IR(Fourier transform infrared), TGA(thermal gravimetric analysis), and nitrogen adsorption-desorption isotherms. We also find a great increase in the glass transition temperature of guest polystyrene influenced by the confined geometry of the host by differential scanning calorimetry(DSC).