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Acyclic diene metathesis polymerization: The synthesis of unsaturated polyketones
Author(s) -
Wagener K. B.,
Patton J. T.,
Forbes M. D. E.,
Myers T. L.,
Maynard H. D.
Publication year - 1993
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.4990320413
Subject(s) - metathesis , acyclic diene metathesis , polymerization , moiety , polymer chemistry , monomer , chemistry , gel permeation chromatography , steric effects , ketone , ring opening metathesis polymerisation , diene , catalysis , polymer , organic chemistry , natural rubber
The first acyclic diene metathesis (ADMET) polymerization of unsaturated ketone containing monomers using the molybdenum catalyst, Mo(CHCMe 2 Ph)(N‐2,6‐C 6 H 3 ‐ i ‐Pr 2 )[OCCH 3 (CF 3 ) 2 ] 2 is reported. 6,6,8,8‐Tetramethyl‐1,12‐tridecadiene‐7‐one undergoes homopolymerization; copoly‐merizations are carried out with 1,9‐decadiene and 2,12‐dimethyl‐2,12‐dipentenylcyclododecan‐1‐one, 2,12‐diallylcyclododecan‐1‐one, and trans ‐2,12‐diallyl‐2,12‐dimethylcyclododecan‐1‐one These polymerizations are initiated under bulk conditions and are continued in solution. No evidence of Wittig chemistry is observed between the carbonyl functional group and the catalyst when a high degree of steric hindrance exists around the carbonyl moiety. Polymer structures were characterized by IR, 1 H NMR, and 13 C NMR spectroscopy. Molecular weights were determined by endgroup analysis and gel permeation chromatography.