title: Creating Patterned Conjugated Polymer Images Using Water-Compatible Reactive Inkjet Printing.
abstract: The fabrication of patterned conjugated polymer images on solid substrates has gained significant attention recently. Office inkjet printers can be used to generate flexible designs of functional materials on substrates on a large scale and in an inexpensive manner. Although creating patterns of conjugated polymers on paper using common office inkjet printers has been reported, only a few examples exist, such as polyaniline (PANI) and poly(3,4-ethylenedioxythiophene) (PEDOT), because only water-compatible inks can be utilized. Herein, we describe the production of poly(phenylenevinylene) (PPV) patterns on paper by employing a reactive inkjet printing (RIJ) method. In this process, printing of a hydrophilic terephthaldehyde, bis(triphenylphosphonium salt) and potassium t-butoxide using a common office inkjet printer leads to formation PPV patterns as a consequence of an in situ Wittig reaction. In addition, microarrayed PPV patterns are also readily generated on solid substrates, such as glass and PDMS, when a piezoelectric dispenser system is employed. The in situ prepared PPV was found to be insoluble in water and chloroform. As a result, unreacted excess reagents and byproducts can be efficiently removed by washing with these solvents.
authors.affiliation: Department of Chemical Engineering, Hanyang University , Seoul 133-791, Korea.
authors.forename: Seongho
authors.initials: S
authors.lastname: Jeon
authors.affiliation: Department of Chemical Engineering, Hanyang University , Seoul 133-791, Korea.
authors.forename: Sumin
authors.initials: S
authors.lastname: Park
authors.affiliation: Department of Chemistry, Hanyang University , Seoul 133-791, Korea.
authors.forename: Jihye
authors.initials: J
authors.lastname: Nam
authors.affiliation: Department of Chemistry, Hanyang University , Seoul 133-791, Korea.|Institute of Nano Science and Technology, Hanyang University , Seoul 133-791, Korea.
authors.forename: Youngjong
authors.initials: Y
authors.lastname: Kang
authors.affiliation: Department of Chemical Engineering, Hanyang University , Seoul 133-791, Korea.|Institute of Nano Science and Technology, Hanyang University , Seoul 133-791, Korea.
authors.forename: Jong-Man
authors.initials: JM
authors.lastname: Kim
keywords: PPV; conjugated polymer; office inkjet printer; paper substrate; reactive inkjet printing