Controlled Synthesis of Poly(p-phenylene) Using a Zincate Complex, t Bu4 ZnLi2

Yuto Ochiai; Eisuke Goto; Tomoya Higashihara

doi:10.1002/marc.201700155

Controlled Synthesis of Poly(p-phenylene) Using a Zincate Complex, ^t Bu₄ ZnLi₂

Macromol Rapid Commun. 2017 Jul;38(14). doi: 10.1002/marc.201700155. Epub 2017 May 10.

Authors

Yuto Ochiai¹, Eisuke Goto¹, Tomoya Higashihara¹

Affiliation

¹ Graduate School of Organic Materials Science, Yamagata University, 4-3-16, Jonan, 992-8510, Japan.

PMID: 28489270
DOI: 10.1002/marc.201700155

Abstract

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 Bu₄ ZnLi₂ ). 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.

Keywords: block copolymer; catalyst transfer polycondensation; controlled synthesis; zincate complex; π-conjugated polymers.

MeSH terms

Catalysis
Molecular Weight
Polymers / chemical synthesis*
Thiophenes / chemistry
Zinc / chemistry*

Substances

Polymers
Thiophenes
poly(3-hexylthiophene)
polyphenylene sulfide
Zinc