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Acyclic Diyne Metathesis (ADIMET), an Efficient Route to Poly(phenylene)ethynylenes (PPEs) and Nonconjugated Polyalkynylenes of High Molecular Weight
Author(s) -
Weiss Karin,
Michel Armin,
Auth EvaMaria,
Bunz Uwe H. F.,
Mangel Timo,
Müllen Klaus
Publication year - 1997
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199705061
Subject(s) - metathesis , phenylene , conjugated system , polymer chemistry , condensation , catalysis , cleavage (geology) , chemistry , salt metathesis reaction , acyclic diene metathesis , polymer , polymerization , organic chemistry , materials science , physics , fracture (geology) , composite material , thermodynamics
Conjugated and nonconjugated diynes can be readily converted to poly(phenylene)‐ethynylene derivatives and polyalkynylenes by acyclic diyne metathesis. The catalyst for these condensation reactions is [( t BuO) 3 WC t Bu], and they proceed with cleavage of volatile alkynes such as 2‐butyne and 3‐hexyne. The chain lengths of the polymers are controlled by reaction temperature and pressure.