介孔高分子材料的合成及其催化性能研究

发布时间：2018-03-31 01:04

本文选题：酚醛树脂　切入点：复合材料　出处：《湖北工业大学》2017年硕士论文

【摘要】：近年来高分子材料发展迅速,功能高分子材料作为高分子材料中的一种,因其具有独特的物理和化学特性,被广泛应用到生物、医药等重要的领域。随着人们需求变得越来越高,新型的功能高分子材料成为人们研究的重点。介孔高分子材料具有较大的比表面积、有序的孔道结构等特点,在医药、化工和有机催化方面具有重要作用。本文的研究对象选择了成本低、稳定性高的介孔酚醛树脂,通过负载金属离子和基团修饰来探究新型介孔材料的特性。前驱体材料酚醛树脂采用水热共聚工艺与一步还原技术以及挥发自组装技术制备得到,并通过一系列表征验证其基本结构和性能。针对该前驱体,本文做了两个方面的研究。第一部分基于酚醛树脂的强吸附性能和柔韧性,将其与硝酸铜采用物理共混法混合,并将其进行研磨,利用其强吸附键得到新型纳米金属铜复合材料。该复合材料具有较好的催化性能,经过多次套用,复合材料表现出稳定的催化活性。第二部分借助一步还原技术和水热共聚工艺,采用活性剂EO-PO聚醚型F127导向剂在碱性条件下诱导甲醛、苯酚和间硝基苯酚低聚物自组装,得到介孔高分子纳米小球,该材料具有高度氨基功能化的特点,并且具有短孔道结构,对重金属离子具有很强的吸附能力。本文制备的金属铜复合材料具有较好的催化性能;制备的介孔高分子纳米小球具有很强的吸附特性,和适用在金属离子吸附场合,这两种酚醛树脂基高分子材料在制备和应用过程都始终贯彻了绿色化学理念,对于推动绿色化学的发展具有积极的意义。
[Abstract]:In recent years, polymer materials have developed rapidly. As one of the polymer materials, functional polymer materials have been widely used in biology because of their unique physical and chemical properties. Medicine and other important fields. As people become more and more demanding, new functional polymer materials become the focus of research. Mesoporous polymer materials have large specific surface area, orderly pore structure and other characteristics, in medicine, Chemical industry and organic catalysis play an important role. In this paper, mesoporous phenolic resins with low cost and high stability were selected. The properties of new mesoporous materials were investigated by modifying metal ions and groups. Phenolic resins were prepared by hydrothermal copolymerization one-step reduction and volatile self-assembly. The structure and properties of the precursor were verified by a series of characterization. Two aspects were studied in this paper. In the first part, based on the strong adsorption and flexibility of phenolic resin, it was mixed with copper nitrate by physical blending method. A new type of nano-metal copper composite was obtained by grinding and using its strong adsorption bond. The composite has good catalytic performance and has been applied for many times. In the second part, by means of one-step reduction technique and hydrothermal copolymerization process, formaldehyde, phenol and m-nitrophenol oligomer self-assembly were induced by EO-PO polyether guidance agent under alkaline conditions. The mesoporous polymer nanospheres were obtained, which have the characteristics of highly amino functionalization, short pore structure and strong adsorption ability to heavy metal ions. The prepared metal copper composite has good catalytic performance. The prepared mesoporous polymer nanoparticles have strong adsorption properties and are suitable for metal ion adsorption. These two kinds of phenolic resin based polymer materials have always carried out the green chemistry idea in the preparation and application process. It has positive significance for promoting the development of green chemistry.
【学位授予单位】：湖北工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TQ317;O643.36

【参考文献】