Abstract
We prepared maleimide copolymers with a well-defined sequence structure by the sequence-controlled radical copolymerization of N-substituted maleimides with an olefin monomer and realed the excellent thermal stability and high transparency of the copolymers. The copolymers consisting of N-allylmaleimide (AMI) and N-(2-ethylhexyl)maleimide (2EHMI) as the maleimide repeating units and diisobutylene (DIB) as the olefin unit (PAED-X) were thermally or photochemically cured using pentaerythritol tetrakis(3-mercaptobutyrate) (PEMB) as a polyfunctional thiol by a thiol-ene reaction. The effects of a reaction temperature, time, and atmosphere on the curing behavior were investigated. The organicinorganic hybrid was also fabricated by the thiol-ene reaction of the PAED-X with silica nanoparticles (SNP) containing a reactive mercapto group at the particle surface. The thermal and optical properties of the obtained PAED-X/SNP hybrids were revealed. We demonstrated the fabrication of the organic－inorganic hybrids exhibiting excellent thermal stability and high transparency by the combination of the maleimide copolymers with silica nanoparticles.
