Abstract
Four-arm poly(N-vinylcarbazole), poly(NVC), stars were synthesized by reversible addition−fragmentation chain transfer (RAFT) polymerization/macromolecular design via interchange of xanthates (MADIX) using three different xanthate-type tetrafunctional chain transfer agents (CTAs). Two Z-designed CTAs having different R (leaving) groups, in which the Z (stabilizing) groups are linked to the core, and one R-designed CTA were compared. The R-group approach was found to be the most efficient for the controlled synthesis of four-arm poly(NVC) stars having a low polydispersity and controlled molecular weights. Amphiphilic star block copolymers were synthesized by the polymerization of NVC using the poly(acrylic acid) star, which was prepared from the R-designed tetrafunctional CTA. The characteristic assembled structures and optical properties of the amphiphilic star block copolymers in selective solvents were investigated by dynamic light scattering (DLS), UV−vis, and fluorescence spectroscopic methods.
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.
