Hu Nantao, Dang Guodong, Zhang Hongnan, Du Ying, Wang Ce, Zhou Hongwei, Meng Xianhui, Chen Chunhai
Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun, 130012, PR China.
J Nanosci Nanotechnol. 2009 Nov;9(11):6688-92. doi: 10.1166/jnn.2009.1346.
A simple method for the preparation of ultrafine polyimide (PI) fibers containing Ag nanoparticles was developed. Ag+ ions in a poly(amic acid) (PAA) precursor solution were firstly electrospun into ultrafine PAA fibers, and the Ag+ ions were then directly reduced to Ag nanoparticles during the imidization process of PAA. The PAA was used as a matrix as well as a reducing agent for the Ag+ ions. The obtained Ag nanoparticles were evenly distributed in the PI nanofiber mats and their average size was ca. 20 nm. This method was very simple and could be generally used to prepare the polyimide fibers containing Ag nanoparticles.
开发了一种制备含银纳米颗粒的超细聚酰亚胺（PI）纤维的简单方法。首先将聚（酰胺酸）（PAA）前驱体溶液中的Ag⁺离子静电纺丝成超细PAA纤维，然后在PAA的亚胺化过程中，Ag⁺离子直接还原为银纳米颗粒。PAA既用作基质，又用作Ag⁺离子的还原剂。所获得的银纳米颗粒均匀分布在PI纳米纤维毡中，其平均尺寸约为20nm。该方法非常简单，可普遍用于制备含银纳米颗粒的聚酰亚胺纤维。
