Precise One-Pot Synthesis of End-Functionalized Conjugated Multi-Block Copolymers via Combined Olefin Metathesis and Wittig-type Coupling

Autor:	Kotohiro Nomura, Tahmina Haque, Fatin Hajjaj, Akiko Inagaki, Taira Onuma, Motoko S. Asano
Rok vydání:	2013
Předmět:	Polymers and Plastics Organic Chemistry One-pot synthesis Inorganic Chemistry chemistry.chemical_compound Terthiophene Ferrocene chemistry Polymer chemistry Wittig reaction Amphiphile Materials Chemistry Copolymer Moiety Ethylene glycol
Zdroj:	Macromolecules. 46:9563-9574
ISSN:	1520-5835 0024-9297
DOI:	10.1021/ma4022554
Popis:	A precise, one-pot synthesis of end-functionalized block copolymers consisting of poly(9,9-di-n-octylfluorene-2,7-vinylene)s (PFVs) and oligo(2,5-dialkoxy-1,4-phenylenevinylene) or terthiophene units as the middle segment have been prepared by olefin metathesis of the vinyl group in the PFV chain ends followed by subsequent Wittig-type coupling. Formation of the block copolymers and the quantitative efficiency in the end-functionalization can be confirmed by synthesis of amphiphilic block copolymers containing poly(ethylene glycol) at the both polymer chain ends. Effect of PFV conjugation length, middle segment, and the end groups toward the emission properties have been studied: the polymers containing ferrocene moiety at the chain ends displayed unique emission/quenching properties.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::94b1b8ec10c137ab6e02475acd95db9d https://doi.org/10.1021/ma4022554 Zobrazit plný text záznamu