TITLE:
ADMET Polymerization: Greener Method for Synthesis of End-Functionalized Poly(Arylene Vinylene)s
AUTHORS:
Tahmina Haque, Kotohiro Nomura
KEYWORDS:
Conjugated Polymers, Olefin Metathesis, Precision Polymerization, Defect-Free, End-Functionalization
JOURNAL NAME:
Green and Sustainable Chemistry,
Vol.7 No.1,
January
26,
2017
ABSTRACT: Recent results for synthesis of conjugated polymers,
poly(arylene vinylene)s exemplified as poly(fluorene vinylene)s and
poly(phenylene vinylene)s, by acyclic diene metathesis (ADMET) polymerization
have been introduced. The methods using molybdenum and ruthenium catalysts
afforded defect-free, high molecular weight polymers with all trans olefinic double bonds, and
significant reduction of by-products (halogen, sulfur etc.) in addition of
decrease of structurally defects have been attained. The methods also
demonstrated precise synthesis of end-functionalized polymers that showed
unique optical properties combined with the end groups. Catalytic one-pot
syntheses of end-functionalized poly(9,9-dialkylfluorene-2,7-vinylene)s have
been attained by both ruthenium (by chain-transfer) and molybdenum catalysts
and the method should provide more green route for synthesis of conjugated
materials with better device performance.