Cyclic carbonates as building blocks for non-isocyanate polyurethanes

Soilikki Kotanen, Tom Wirtanen, Riitta Mahlberg, Adina Anghelescu-Hakala, Tapani Harjunalanen, Pia Willberg-Keyrilainen, Timo Laaksonen, Essi Sarlin

Tutkimustuotos: ArtikkeliTieteellinenvertaisarvioitu

9 Sitaatiot (Scopus)
33 Lataukset (Pure)

Abstrakti

Three different cyclic carbonates (ethylene, propylene, and butylene carbonate) that can be derived from CO2 were successfully polymerized with hexamethylenediamine to form non-isocyanate polyurethanes (NIPUs) via self-polycondensation route without the use of harmful di-isocyanates. Three different catalysts were compared for their performance in self-polycondensation. Increasing the side chain length in cyclic carbonate increased the amount of urea side reaction and decreased the solubility of the final product. The increased amount of urea lead to a more thermoset behavior as the melting and decomposition took place simultaneously. Furthermore, the extent of urea side reaction and melting behavior were adjustable with the selection of the catalyst or polymerization parameters. With ethylene and propylene carbonate based precursors, it was possible to obtain promising melting temperatures and lap shear strength for the NIPUs when optimized polymerization parameters and catalyst were used.

AlkuperäiskieliEnglanti
Artikkelie53964
JulkaisuJournal of Applied Polymer Science
Vuosikerta140
Numero24
DOI - pysyväislinkit
TilaJulkaistu - 2023
OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Julkaisufoorumi-taso

  • Jufo-taso 1

!!ASJC Scopus subject areas

  • Yleinen kemia
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

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