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Bulk Acyclic Diene Metathesis Polycondensation
Author(s) -
Bell Michael,
Hester Holley Grace,
Gallman Alec Nicholas,
Gomez Valentina,
Pribyl Julia,
Rojas Giovanni,
Riegger Andreas,
Weil Tanja,
Watanabe Hiro,
Chujo Yoshiki,
Wagener Kenneth B.
Publication year - 2019
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.201900223
Subject(s) - acyclic diene metathesis , isomerization , metathesis , condensation polymer , ruthenium , chemistry , catalysis , polymer chemistry , carbene , diene , polymerization , alkyl , polymer , olefin metathesis , double bond , organic chemistry , natural rubber
Abstract Bulk acyclic diene metathesis (ADMET) polymerization performed in the melt at temperatures up to 175 °C is completed using a cyclic (alkyl)(amino) carbene (CAAC) ruthenium‐based Grubbs catalyst. High temperature stability is investigated at temperatures well above conventional ADMET chemistry, leading to the highest weight‐average molecular weights ever achieved for any ADMET polymer. A study of isomerization tendency (double bond migration) is done via self‐metathesis of a small molecule model compound using CAAC catalysts. Minimal olefin isomerization is observed using appropriate catalyst ratios and temperatures.