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Controlled Synthesis of Poly( p ‐phenylene) Using a Zincate Complex, t Bu 4 ZnLi 2
Author(s) -
Ochiai Yuto,
Goto Eisuke,
Higashihara Tomoya
Publication year - 2017
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201700155
Subject(s) - zincate , dispersity , condensation polymer , dilithium , copolymer , molar mass , polymer chemistry , monomer , materials science , chain transfer , polymerization , chemistry , catalysis , polymer , zinc , organic chemistry , deprotonation , radical polymerization , ion
Well‐defined poly(2,5‐dihexyloxyphenylene‐1,4‐diyl) (PPP) is successfully synthesized by the Negishi catalyst‐transfer polycondensation (NCTP) using dilithium tetra( tert ‐butyl)zincate ( t Bu 4 ZnLi 2 ). The obtained PPP possesses the number‐averaged molecular weight ( M n ) values in the range of 2100–22 000 and the molar‐mass dispersity ( Ð M ) values in the range of 1.09–1.23. In addition, block copolymers containing PPP and poly(3‐hexylthiophene) (P3HT) segments (PPP‐ b ‐P3HT) are synthesized to confirm the feasibility of chain extension between the different monomers based on NCTP.

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