Humidity sensor based on conductivity measurements of a poly(dimethyldiallylammonium chloride) polymer film

Electrical and humidity sensing properties of carbon nanotubes-SiO2-poly(2-acrylamido-2-methylpropane sulfonate) composite material

“…A number of approaches have so far been investigated for solving the shortcomings of instability at high humidity; these include graft polymerization [6,[10][11][12], crosslinking [13,14], coating with a protective organosilane film [15], interpenetrating polymer network (IPN) technique [16] and employment of organic/inorganic composite materials [17][18][19][20][21][22]. Carbon nanotubes (CNTs) have self-assembled nanoscale tubular structures of carbon atoms.…”

Electrospun nanofibers of polymer composite as a promising humidity sensitive material

“…Its impedance decreased from 1.4 × 10 7 to 6 × 10 4 with humidity increase from 22 to 97%RH, showing high humidity sensitivity and good linearity on a semi-logarithmic scale. It is known that PDDA can act as a humidity sensitive material [30]. Naturally there arises a question: did the much decreased impedance and improved sensing characteristics result from PDDA?…”

Water-resistive humidity sensor prepared from new polyelectrolyte containing both photo-curable 4-styrylpyridinium function and thiol anchor

“…The photocrosslinking technology can easily lead to a crosslinked network structure in a polyelectrolyte film [22,23]. Chalcone and cinnamoyl groups were well studied and used in photocrosslinkable polymers because they afford a high sensitivity to UV radiation and chemical resistance and also a thermal stability of the resultant polymers [24][25][26].…”