浓乳液法制备聚砜多孔材料

发布时间：2018-11-04 07:54

【摘要】： 聚砜的多孔材料由于其优越的热性能,电性能和耐候性,在生物医药,燃料电池等领域内都有很好的用途。然而,用现有的方法所制备的多孔材料,往往只有较低的孔隙率并且只能做成薄膜状的材料。本论文采用浓乳液法来制备聚砜的多孔材料,利用这种方法能够制备高孔隙率并且具有通孔结构的大块的多孔材料。在制备的过程中,首先制备的是由聚砜的氯仿溶液与去离子水组成的“传统”乳液。在溶剂氯仿挥发之后,这种“传统”乳液逐渐转化成了浓乳液。在将浓乳液中的水分去除之后,制备成具有高孔隙率通孔结构的聚砜的多孔材料。本论文主要合成了氨基化的聚砜,这种双亲性的聚合物能很好的使聚砜的乳液稳定；探索了影响多孔材料孔结构的因素,如：水油比的影响、乳化剂的影响、以及溶剂挥发速率的影响；在此基础上提出了多孔材料形成的机理。
[Abstract]:Polysulfone porous materials have good applications in biomedical, fuel cell and other fields because of their superior thermal, electrical and weathering properties. However, porous materials prepared by existing methods often have low porosity and can only be made into thin film materials. In this paper, polysulfone porous materials were prepared by concentrated emulsion method, which can be used to prepare bulk porous materials with high porosity and through pore structure. In the process of preparation, a "traditional" emulsion consisting of chloroform solution of polysulfone and deionized water was prepared. After the solvent chloroform volatilized, the "traditional" emulsion was gradually transformed into a concentrated emulsion. The polysulfone porous material with high porosity through pore structure was prepared after the removal of water from the concentrated emulsion. In this thesis, amino polysulfone was synthesized. This amphiphilic polymer can stabilize the emulsion of polysulfone. The factors affecting the pore structure of porous materials, such as the influence of water / oil ratio, emulsifier and solvent volatilization rate, were explored, and the formation mechanism of porous materials was put forward.
【学位授予单位】：北京化工大学
【学位级别】：硕士
【学位授予年份】：2010
【分类号】：TQ316.3

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