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Selectively Depolymerizable Polyurethanes from Unsaturated Polyols Cleavable by Olefin Metathesis
Author(s) -
Jones Brad H.,
Staiger Chad,
Powers Jackson,
Herman Jeremy A.,
RománKustas Jessica
Publication year - 2021
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.202170011
Subject(s) - cycloalkene , depolymerization , polymer chemistry , ring opening metathesis polymerisation , olefin fiber , olefin metathesis , polymerization , acyclic diene metathesis , chemistry , metathesis , grubbs' catalyst , organic chemistry , catalysis , materials science , polymer
Inside Cover : In article number 2000571 by Brad H. Jones and coworkers, linear and crosslinked polyurethanes are prepared from traditional isocyanates and new polyols containing unsaturated moieties designed to favor ring‐closing olefin metathesis and concomitant cleavage of the molecule. These polyurethanes are found to be efficiently depolymerized upon exposure to second generation Hoveyda–Grubbs catalyst under ambient conditions. The depolymerization products are multi‐vinyl/cycloalkene species that can be re‐polymerized.