Development of a Simultaneous Process of Surface Modification and Pd Nanoparticle Immobilization of a Polymer Substrate Using Radiation

Abstract

Pd nanoparticles were immobilized on an acrylonitrile–butadiene–styrene copolymer (ABS) substrate using ionizing radiation. The samples were prepared by irradiating plastic zipper packs containing ABS substrates and a Pd(NO3)2 aqueous solution with a high-energy electron beam (4.8 MeV). Pd nanoparticles immobilized on the ABS substrate surfaces were observed using scanning electron microscopy (SEM). The chemical state of Pd was found to be coordinated to a carbonyl group or a metallic state by X-ray photoelectron spectroscopy (XPS) measurements. The peel strength of the Cu film on the Pd/ABS samples was 0.7 N/mm or higher. This result shows that the prepared Pd/ABS samples have high adhesion strength, despite not undergoing treatments such as etching with chromic acid. This method is expected to immobilize metal nanoparticles, not only on plastic plates but also on various other materials.

Effect of molecular weight on properties of polyarylene ether nitrile‐based flexible copper clad laminate

“…In recent years, many researchers have investigated methods such as filler-modified resins. [21][22][23][24] Take some instances, Lei et al 25 have explored fullerene/PEN composite films with low dielectric, which was available for use in the FCCL. This research demonstrates the importance of the cage-like structure of fullerenes in reducing the dielectric constant.…”

“…In recent years, many researchers have investigated methods such as filler‐modified resins 21–24 . Take some instances, Lei et al 25 have explored fullerene/PEN composite films with low dielectric, which was available for use in the FCCL.…”

Effect of Polymer Substrate on Adhesion of Electroless Plating in Irradiation-Based Direct Immobilization of Pd Nanoparticles Catalyst

“…Our research group has been working on the development of methods for direct immobilization of noble metal nanoparticles on various substrates, such as ceramics, carbon, textile fabrics, and polymer substrates, using chemical reactions induced by ionizing radiation [14][15][16]. The process of nanoparticle formation induced by ionizing radiation has been elucidated by .…”

“…We have found that metal nanoparticles can be directly immobilized on the support surface by irradiating the precursor aqueous solution containing the support. Recently, we reported that Pd nanoparticles immobilized on ABS substrates worked as a catalyst for electroless plating, and the Cu plating films obtained using this method exhibited a high adhesion strength despite no etching treatment [16]. This is a novel catalyst-immobilization method that differs from the graft polymerization method, in which functional groups are introduced by irradiating the polymer surface [20].…”