DBU-Intercalated α-Zirconium Phosphates as Latent Thermal Catalysts in the Reaction of Hexamethylene Diisocyanate and Phenol

The catalytic activity of 1,8-diazabicyclo [5,4,0]undec-7-ene-intercalated α-zirconium phosphates (α-ZrP·DBU) as thermal latent catalysts in the reaction of hexamethylene diisocyanate (HDI) and phenol was investigated. α-ZrP intercalation compounds with varying amounts of DBU (α-ZrP·xDBU, where x =...

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Bibliographic Details
Published inCatalysts Vol. 11; no. 5; p. 614
Main Authors Shimomura, Osamu, Kusu, Hideki, Ohtaka, Atsushi, Nomura, Ryôki
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.05.2021
Subjects
Catalysts
Catalytic activity
Chemical reactions
Conversion
Hexamethylene diisocyanate
intercalation
Intercalation compounds
latent thermal catalyst
Lifetime
Phenols
Phosphates
pot life
urethane
Zirconium
α-zirconium phosphate
Japan
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Summary:The catalytic activity of 1,8-diazabicyclo [5,4,0]undec-7-ene-intercalated α-zirconium phosphates (α-ZrP·DBU) as thermal latent catalysts in the reaction of hexamethylene diisocyanate (HDI) and phenol was investigated. α-ZrP intercalation compounds with varying amounts of DBU (α-ZrP·xDBU, where x = 0.58, 0.44, 0.22, and 0.10) were prepared. The reaction of HDI and phenol with α-ZrP·DBU was carried out at varying temperatures for 30 min periods. The α-ZrP·DBU showed high catalytic activity in the reaction of HDI-phenol under heating conditions. The α-ZrP·DBU extended the pot lifetimes at 25 °C.
ISSN:2073-4344
2073-4344
DOI:10.3390/catal11050614