Abstract
t-Bu3P-coordinated 2-phenylaniline-based palladacycle complex (1) as the unique source of Pd(0)/t-Bu3P to form efficient initiators with ArBr for controlled Suzuki cross-coupling polymerizations of AB-type monomers was described. The in situ generated initiators were demonstrated to be robust initiator systems for controlled Suzuki cross-coupling polymerization, affording polymers with unprecedentedly narrow PDIs and well-controlled functional end groups. 31P NMR study suggested that the fast and efficient generation of ArPd(t-Bu3P)Br complexes from precatalyst 1 and ArBr might be the reason for better control of polymerization with precatalyst 1/ArBr as initiators. Our study provided a family of unprecedented, highly efficient initiators for controlled Suzuki cross-coupling polymerizations and a direct route to access conjugated polymers with a variety of heterobisfunctional chain end groups.
Original language | English |
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Pages (from-to) | 656-660 |
Number of pages | 5 |
Journal | ACS Macro Letters |
Volume | 5 |
Issue number | 6 |
DOIs | |
State | Published - Jun 21 2016 |
Externally published | Yes |
Funding
We gratefully thank the NSF (CHE0911533 and CHE1507839) for funding.
Funders | Funder number |
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National Science Foundation | 1507839, CHE1507839, CHE0911533 |