Abstract
Six azobenzene monomers containing methacrylate groups were prepared and characterized. The monomers varied by having alkyl spacers of varying lengths and either nitro or methoxy substituents in conjugation with the azo groups. The monomers were polymerized via atom transfer radical polymerization (ATRP) to give polymethyacrylates with pendent azobenzene groups. The pendent azobenzene groups were separated from the polymer backbone by alkyl spacing groups of varying lengths. The side-chain nonlinear optical (NLO) polymers with variable and controllable molecular weight and low polydispersity (1.2—1.4) were obtained. The kinetics of ATRP for each azo monomer was also studied. The third-order NLO property of azo monomers and their polymers were measured using the degenerated four wave mixing technique. Each of the polymers exhibited relatively high χ (3 ) value and rapid response times. The effects of the substituent and spacer length on the ATRP of the methacrylate monomers and the effect of molecular weight on the third-order NLO property of polymers were investigated.
Sign-in/Register to access full text options 
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.
