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Ring‐opening metathesis polymerization of endo ‐ and exo ‐5‐methoxymethylbicyclo[2.2.1]hept‐2‐ene; microstructure of the polymers
Author(s) -
Ivin Kenneth J.,
Lam LukMui,
Rooney John J.
Publication year - 1994
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.1994.021950407
Subject(s) - ene reaction , polymer chemistry , metathesis , ring opening metathesis polymerisation , polymerization , polymer , microstructure , ring opening polymerization , materials science , romp , chemistry , organic chemistry , composite material
The title monomers 1 and 2 were polymerized by Ru‐, Ir‐, Mo‐, W‐ and Re‐based metathesis catalysts to yield polymers with cis contents ranging from 10% to at least 90% for 1 and 23–60% for 2 . Assignments of the 13 C NMR spectra were made. No significant head‐tail bias was observed in either polymer. A high‐ trans polymer made from the optically active endo monomer ((−)‐ 1 ) was atactic, while high‐ cis polymers could be either atactic or biased towards syndiotactic, depending on the catalyst.