Abstract
Comparative Suzuki–Miyaura coupling polymerization (SMCP) studies with initiators generated in situ from 4-iododiphenylether (1), 4,4′-diiododiphenylether (2), 1,6-bis(4-iodophenoxy)hexane (3) and 1,4-bis(4-iodophenoxy)cyclohexane (4) result in bidirectional growth for 2, versus preferred monodirectional growth for 3 and 4 with their aliphatic spacers, in agreement with a “chain walking” of the metal along the aromatic system. Multidirectional controlled SMCP was initiated on a 1,6,9,14-tetra(4-iodophenoxy)-N,N′-(2,6-diisopropylphenyl) terrylene-3,4:11,12-tetracarboxidiimide (TDI-ArI4) near-infrared fluorescent dye as a tetrafunctional core. MALDI–TOF characterization and end group analysis reveal that four-armed polyfluorene-star-terrylenediimide (PF-star-TDI) polymers are formed with narrow molecular weight distributions (e.g., Mw/Mn = 1.29 at Mn = 1.8 × 104 g mol–1 from GPC). An efficient energy transfer results in a virtually exclusive NIR emission from the core upon excitation of the stars’ polyfluor...
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.
