Characterization and application of crosslinkers for polyurethane aqueous systems: Isopropylidene malonate‐blocked isocyanurate | Zendy

Mirčeva A. | Zendy; Žigon M. | Zendy; Malavašič T. | Zendy

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Characterization and application of crosslinkers for polyurethane aqueous systems: Isopropylidene malonate‐blocked isocyanurate

Author(s) -

Mirčeva A.,

Žigon M.,

Malavašič T.

Publication year - 1994

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.1994.070541309

Subject(s) - malonate , polyurethane , polymer chemistry , aqueous solution , fourier transform infrared spectroscopy , amide , adduct , curing (chemistry) , chemistry , materials science , organic chemistry , chemical engineering , engineering

An adduct of hexamethylene isocyanurate and isopropylidene malonate was prepared and tested as a crosslinker in a one‐pack water‐borne polyurethane system. It was characterized by FTIR, NMR, and SEC; the blocking and curing courses were followed by FTIR and DSC. The crosslinker was a mixture of various oligomers having mainly amide‐type linkages. The cure analysis showed that cleavage of the malonate ring started at around 110°C and was followed by the formation of ester‐type products. After 30 min of heating at 130°C the insoluble part of crosslinked polyurethane films exceeded 80%. © 1994 John Wiley & Sons, Inc.

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