Utilize the wettability control manner and that manner of the high-molecular thin film surface image formation manner and the image formation material

摘要

PURPOSE:To make it possible to control reversibly the wettability at an arbitrary part of a thin polymer film by reversibly chemically doping or dedoping the thin polymer film. CONSTITUTION:For example a patterned electrode 2 is laid on a substrate 1 (e.g., SnO2 glass substrate), a thin polymer film (e.g., thin polypyrrole film) is laid upon the electrode 2 to form a laminate A, and this laminate A is immersed in an electrolyte (e.g., aqueous solution) 4 containing a dopant (e.g., poly(ammonium styrenesulfonate)), a counter electrode 5 is arranged, and a voltage is applied between the patterned electrode 2 and the counter electrode 5 to thereby penetrate the dopant into the polymer film 3 to form a doped part 6 having wettability with water.