Novel Imaging Materials:  Synthesis and Characterization of Poly[N,N-dimethyl-N-(p-benzoylbenzyl)-N-(2-methacryloylethyl)ammonium triphenylbutylborate] as a Single-Component Photoimaging System

Abstract

New polymeric materials based on N,N,N-trialkyl-N-(p-benzoylbenzyl)ammonium triphenylbutylborate have been synthesized and characterized. Model compounds provide spectroscopic evidence that these polymers are capable of forming free tertiary amines upon irradiation at 365 nm. Photochemical generation of base is much enhanced when triphenylbutylborate is used as the electron donor. Using this concept, the synthesized polymers have been utilized for imaging in a single-component system. Positive-tone images can be achieved by washing the polymeric film produced upon exposure to light with aqueous acidic solution and ethanol.

Poly(olefin sulfone)s

“…Photopolymers can change their physical and/or chemical properties through the absorption of light [1]. Although many studies on photopolymers have been reported, a few studies show photoinduced conversion to monomers under mild conditions.…”

Preparation of a Photoacid Generating Monomer and Its Application in Lithography

“…This is not surprising as the polymer is highly crystalline due to its ionic nature. [10] Thermogravimetric analysis (TGA) measurements indicated that the polymer is thermally stable until 240 C in both oxygen and nitrogen atmosphere.…”

“…[10] However, use of this type of polymers as resists has lagged behind CA resists. The major obstacle to prevent non-CA resists from wide application is their low sensitivity.…”

Photoinduced depolymerization in poly(olefin sulfone) films comprised of volatile monomers doped with a photobase generator

“…Photopolymers play an important role in current technologies and enable the processing of a wide variety of novel materials 1. However, few of the photopolymers investigated to date exhibit photoinduced conversion to monomers under mild conditions 2–8.…”