  We report an optimized two-step thermopolymerization process carried out in
contact with micropatterned molds that yields porous phenolic resin dual-use
stamps with topographically micropatterned contact surfaces. With these stamps,
two different parallel additive substrate manufacturing methods can be
executed: capillary stamping and decal transfer microlithography. Under
moderate contact pressures, the porous phenolic resin stamps are used for
non-destructive ink transfer to substrates by capillary stamping. Continuous
ink supply through the pore systems to the contact surfaces of the porous
phenolic resin stamps enables multiple successive stamp-substrate contacts for
lithographic ink deposition under ambient conditions. No deterioration of the
quality of the deposited pattern occurs and no interruptions for ink
replenishment are required. Under high contact pressure, porous phenolic resin
stamps are used for decal transfer printing. In this way, the tips of the
stamps' contact elements are lithographically transferred to counterpart
substrates. The granular nature of the phenolic resin facilitates the rupture
of the contact elements upon stamp retraction. The deposited phenolic resin
micropatterns characterized by abundance of exposed hydroxyl groups are used as
generic anchoring sites for further application-specific functionalizations. As
example, we deposited phenolic resin micropatterns on quartz crystal
microbalance resonators and further functionalized them with polyethylenimine
for preconcentration sensing of humidity and gaseous formic acid. We envision
that also preconcentration coatings for other sensing methods, such as
attenuated total reflection infrared spectroscopy and surface plasmon resonance
spectroscopy, are accessible by this functionalization algorithm
