Year-end Sale % OFF 
Abstract
Abstract Two kinds of crosslinked polymers, containing 4-(4′-nitrophenylazo) aniline chromophore groups, were synthesized. Crosslinked polyacrylate was synthesized by polymerization of Dispersed Red-19 (DR-19) diacrylate, whereas crosslinked polyurethane was obtained by the reaction between (β-hydroxy propyl acrylate—DR-1 methacrylate) copolymer and phenol-capped isocyanate-terminated DR-19. The crosslinked polymers were characterized by infra-red spectra, gel content and differential scanning calorimetry. The crosslinked polyacrylate and the crosslinked polyurethane exhibit glass transition temperatures at 125 and 160°C, respectively. Thin, transparent, poled films of both crosslinked polymers were prepared by spin-coating, followed by thermal curing and corona poling at 160°C for 1 h. The second-order non-linear optical properties of the poled films were studied by visible light absorbance measurement according to a one-dimensional, rigid oriented gas model. Long-term stability of the dipole alignment at 140°C was demonstrated for the crosslinked polyurethane.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
