Spontaneous growth of free-standing polypyrrole films at an air/ionic liquid interface.
A novel strategy for the one-pot fabrication of free-standing polypyrrole films is presented in this work. The films are spontaneously formed at an air/ionic liquid interface through interface oxypolymerization. The thicknesses of the films are finely controlled from tens to hundreds of nanometers, and the films are uniform and compact. Asymmetrical films with different smoothness on the two sides of the film are also obtained and exhibit different water wettability. This method is extremely simple and does not need any equipment. It may bring about a general methodology for forming free-standing conducting polymer films.
Wang
Dong
D
i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, CAS, Suzhou 215125, PR China.
Li
Yan-Xiang
YX
Shi
Zhun
Z
Qin
Hai-Li
HL
Wang
Lei
L
Pei
Xian-Feng
XF
Jin
Jian
J