Abstract
A series of five well-defined chain-end-functionalized polystyrenes with 2, 4, 8, 16, and 32 benzyl bromide moieties that were dendritically distributed were synthesized by an iterative methodology using only two sets of the reactions in each iterative reaction sequence. By coupling of these benzyl bromide-functionalized polystyrenes with 1,1-diphenylethylene (DPE)-end-capped polystyryllithium or polyisoprenyllithium in THF at −40 °C, 3-, 5-, 9-, 17-, and 33-arm star-branched polystyrenes as well as AA‘8 and AB8 asymmetric star-branched polymers were quantitatively synthesized. Moreover, a new chain-end-functionalized polystyrene with 16 phenols could successfully be synthesized by a similar coupling reaction between chain-end-functionalized polystyrene with 8 benzyl bromide moieties and the functionalized 1,1-diphenylalkyl anion prepared from sec-BuLi and 1,1-bis(4-tert-butyldimethylsilyloxyphenyl)ethylene, followed by deprotection. The well-defined structures and branched architectures of the resulting ...
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.
