Advanced Functional Materials, Vol.12, No.1, 27-32, 2002
Control of the electronic properties of thermosensitive poly(N-isopropylacrylamide) and Au-nanoparticle/poly(N-isopropylacrylamide) composite hydrogels upon phase transition
The electrical resistances of poly (N-isopropylacrylamide), poly-(NIPA), upon thermal phase transition between the swollen hydrogel (20degreesC) and solid (40degreesC) states are analyzed by Faradaic impedance spectroscopy, chronopotentiometry, and cyclic voltammetry. The incorporation of Au-nanoparticles into the poly-(NIPA) by a thermal "breathing-in" process, reduces the electron transfer resistance in the solid composite material.