Thioanhydride/isothiocyanate/epoxide ring-opening terpolymerisation: sequence selective enchainment of monomer mixtures and switchable catalysis

Thioanhydride/isothiocyanate/epoxide ring-opening terpolymerisation: sequence selective enchainment of monomer mixtures and switchable catalysis

We report a new sequence selective terpolymerisation in which three monomers (butylene oxide (BO) A, PhNCS B and phtalic thioanhydride (PTA) C) are selectively enchained into an (ABA′C) n sequence. PTA/PhNCS/BO ring-opening terpolymerisation ROTERP can be coupled with CS 2 ROTERP to generate tetrapo...

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Veröffentlicht in:Polymer chemistry 2022-07, Vol.13 (27), p.3981-3985
Hauptverfasser: Silbernagl, Dorothee, Sturm, Heinz, Plajer, Alex J
Format: Artikel
Sprache:eng
Schlagworte:
Catalysis
Chemical synthesis
Monomers
Polymer chemistry
Ring opening
Terpolymerization
Tetrahydrofuran
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Zusammenfassung:We report a new sequence selective terpolymerisation in which three monomers (butylene oxide (BO) A, PhNCS B and phtalic thioanhydride (PTA) C) are selectively enchained into an (ABA′C) n sequence. PTA/PhNCS/BO ring-opening terpolymerisation ROTERP can be coupled with CS 2 ROTERP to generate tetrapolymers and with DL ROP in switchable catalysis for blockpolymer synthesis. Lithium mediates sequence selective terpolymerisation of phtalic thioanhydride/PhNCS/butylene oxide yielding poly(ester- alt -ester- alt -dithioimidocarbonates) and enables block- and tetrapolymerisations.
ISSN:1759-9954
1759-9962
DOI:10.1039/d2py00629d