Sung Choonghyun, Ye Yixin, Lutkenhaus Jodie L
Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States.
Department of Chemical Engineering, Tsinghua University, Beijing, People's Republic of China.
ACS Macro Lett. 2015 Apr 21;4(4):353-356. doi: 10.1021/acsmacrolett.5b00077. Epub 2015 Mar 13.
Nanoporous layer-by-layer (LbL) microtubes consisting of poly(allylamine hydrochloride) (PAH) and poly(acrylic acid) (PAA) are prepared by LbL deposition in porous templates followed by postassembly acid treatment. The formation of the nanoporous structure is studied as a function of solution pH, treatment time, and number of layers. Pore formation is most effective at pH 1.8, requiring only 5 min to achieve a complete transition, and is shown to be reversible. Whereas the inner surface of the porous microtubes is rough, the outer surface is smoother and exhibited isolated pores, suggestive of an asymmetric porous structure.
由聚（烯丙胺盐酸盐）（PAH）和聚（丙烯酸）（PAA）组成的纳米多孔层层（LbL）微管是通过在多孔模板中进行LbL沉积，然后进行组装后酸处理制备的。研究了纳米多孔结构的形成与溶液pH值、处理时间和层数的关系。在pH值为1.8时，成孔效果最为显著，仅需5分钟即可实现完全转变，且显示出可逆性。多孔微管的内表面粗糙，而外表面较光滑，且有孤立的孔隙，表明其具有不对称的多孔结构。
