气息图案法制备三醋酸纤维素有序多孔薄膜及其应用研究

发布时间：2018-11-15 17:25

【摘要】：有序多孔薄膜在结构,性能等方面的独特优势,使其具有非常好的应用前景,如作为光电材料,细胞培养的基质,高效催化剂等。气息图案法因其过程简单,操作容易,成本较低等特点,且以无毒、无害的水为模板;同时还是一种动态的自组装过程,可以通过调整各种参数,如环境湿度、溶剂、溶液浓度等因素,控制多孔膜的形貌及其孔径大小,根据实际的需求来制备不同结构和性能的有序多孔薄膜,使其相对于传统的有序多孔结构的制备方法有较大优势。本论文主要研究了气息图案法制备三醋酸纤维素(CTA)有序多孔薄膜的问题,并针对制备过程中的一些影响成膜成孔的因素进行了研究,同时初步探索了有序多孔薄膜在一些简单的应用,此外还制备了有序性和通透性较好的溴化聚苯醚(BPPO)有序多孔薄膜,对其在纳米金微图案的制备等方面的应用进行了初步探索。主要包括以下内容:1.通过对不同溶剂的尝试和对比实验,最终选用二氯甲烷作为溶解三醋酸纤维素的有机溶剂;二氯甲烷作为溶剂时,在高湿环境下才能够获得三醋酸纤维素的有序多孔结构。2.探索了基底,铸膜液浓度对TCA多孔膜孔径和通透性的影响,发现随着CTA浓度的增大,所制备的多孔薄膜的孔径是减小的。在冰面上制备的多孔薄膜的有序性和通透性大大优于同样条件下在玻璃基底上制备的多孔薄膜。3.通过剥离的方法制备了多孔针垫状结构,研究了其剥离前后疏水性能的变化;使用TCA多孔薄膜作为微滤薄膜,探讨了其在污水处理方面的应用;此外以多孔的TCA为模板尝试制备聚二甲基硅氧烷(PDMS)的微透镜结构,以此作为二次模板制备聚乙烯醇了(PVA)的多孔有序微结构。4.使用在冰面上制备的规整性和通透性较好的BPPO的有序多孔膜,制备了金的有序阵列和微纳米图案。
[Abstract]:Because of its unique advantages in structure and properties, ordered porous films have a good application prospect, such as optoelectronic materials, cell culture substrates, high efficient catalysts and so on. Because of its simple process, easy operation, low cost and so on, the breath pattern method is based on innocuous and innocuous water. At the same time, it is also a dynamic self-assembly process, which can control the morphology and pore size of porous membrane by adjusting various parameters, such as environmental humidity, solvent, solution concentration and so on. The ordered porous films with different structures and properties are prepared according to the practical requirements, which has a great advantage over the traditional preparation methods of ordered porous structures. In this paper, the preparation of ordered porous cellulose triacetate (CTA) thin films by breath pattern method was studied, and some factors affecting the formation of porous films were studied. At the same time, some simple applications of ordered porous films were preliminarily explored. In addition, the ordered porous films of brominated polyphenylene ether (BPPO) with good order and permeability were also prepared. Its application in the preparation of nanocrystalline gold patterns was preliminarily explored. Mainly includes the following contents: 1. Dichloromethane was chosen as the organic solvent for dissolving cellulose triacetate, and the ordered porous structure of cellulose triacetate could be obtained under high humidity. 2. The effects of substrate and casting solution concentration on the pore size and permeability of TCA porous membrane were investigated. It was found that the pore size of the prepared porous membrane decreased with the increase of CTA concentration. The orderliness and permeability of the porous films prepared on the ice surface are much better than that of the porous films prepared on glass substrates under the same conditions. The porous needle cushion structure was prepared by peeling method, and the hydrophobic properties before and after peeling were studied, and the application of porous TCA thin film as microfiltration film in wastewater treatment was discussed. In addition, the porous ordered microstructure of polyvinyl alcohol (PVA) was prepared by using porous TCA as template to prepare polydimethylsiloxane (PDMS) microlens. 4. In this paper, the ordered porous BPPO films with good regularity and permeability prepared on the ice surface were used to prepare the ordered gold arrays and micro and nano patterns.
【学位授予单位】：青岛大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TQ352.79;TB383.2

【相似文献】