Abstract
Kumada catalyst-transfer polycondensation was used to synthesize poly(5,6-difluorobenzotriazole-alt-4-hexylthiophene) (PFBTzHT), an alternating donor-acceptor conjugated polymer, in a controlled manner. Through a series of kinetic studies, a linear relationship between the monomer conversion and the molecular weight of the resulting polymer was observed while maintaining narrow polydispersities (Ds ≤ 1.4). Moreover, the Mn displayed a linear relationship with the initial monomer-to-catalyst feed ratio, and polymers with Mns up to 25 kDa were successfully synthesized. All-conjugated block copolymers containing segments of PFBTzHT and poly(3-hexylthiophene) (P3HT) were also obtained in various compositions (30-70% P3HT) via sequential monomer addition in a single vessel.
Original language | English (US) |
---|---|
Pages (from-to) | 1254-1258 |
Number of pages | 5 |
Journal | ACS Macro Letters |
Volume | 4 |
Issue number | 11 |
DOIs | |
State | Published - Oct 27 2015 |
Bibliographical note
Publisher Copyright:© 2015 American Chemical Society.