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The Resting State Makes the Difference: The Influence of the Anchor Group in the ROMP of Norbornene Derivatives
Author(s) -
Slugovc Christian,
Demel Sandra,
Riegler Silvia,
Hobisch Josefine,
Stelzer Franz
Publication year - 2004
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200300196
Subject(s) - norbornene , romp , monomer , polymerization , polymer chemistry , chemistry , metathesis , ruthenium , functional group , ring opening metathesis polymerisation , group (periodic table) , organic chemistry , polymer , catalysis
Summary: A model study with four norbornene derivatives with different groups connecting a functional unit to the norbornene reveals that the “anchor groups” influence the polymerisation rate constants of ring opening metathesis (ROM) polymerisations. Consequently, polydispersities and molecular weights are affected. The observed effects are explained by different tendencies of the anchor groups to coordinate to the ruthenium centre during the resting state of the propagation.A functionalised monomer where F is the functional unit, S is a spacer, A is an anchor group and P is the polymerisable group.