With the diversification of industrial components in recent years, bonding technology for dissimilar materials has become essential. In this study, we designed and synthesized a methacryl monomer with a 2-aminopyridyl group, an analogue of the catechol group. The photo-adhesive property was evaluated using the monomer, a radical photo-initiator, and a commercially available mono-functional methacryl monomer. UV irradiation at a wavelength of 365 nm with an irradiation energy of 1 J/cm² yielded adhesive strengths of 5.3 MPa and 9.9 MPa for Glass-Cu and Glass-Al photo-adhesive samples, respectively.

Photo-adhesive material was prepared for adhesion between dissimilar materials, with a radical photo-initiator and a methacryl monomer having 2-chloropyridyl group. The methacryl monomer was obtained as a stable colorless liquid. Photo-adhesion was then performed between a glass substrate and another one (glass or dissimilar materials), with 1 J/cm² of UV irradiation at a wavelength of 365 nm. Shear stress up to 6.2 MPa was recorded, and thermal dismantlement of the sample was also observed. Furthermore, using residue of the adhesive layer on each substrate, re-adhesion was performed with gentle heating.