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Clearcoats based on maleimide/vinyl ether combinations – investigations into their properties and curing behaviour
Author(s) -
Pietschmann Norbert
Publication year - 2002
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200209)187:1<225::aid-masy225>3.0.co;2-p
Subject(s) - vinyl ether , maleimide , polymer chemistry , reactivity (psychology) , ether , materials science , chemistry , organic chemistry , copolymer , polymer , medicine , alternative medicine , pathology
UV curable maleimide/vinyl ether blends were discussed in literature during the last years. Results of basic research were published which mainly contained RTIR spectroscopy, differential photocalorimetry, and the mechanism of radical formation. Partially, these results indicated high reactivity and low sensitivity to oxygen inhibition. Therefore, UV curable clearcoats containing maleimides and vinyl ethers were formulated and UV cured in air atmosphere. In principle, it was possible to use equimolar maleimide/vinyl ether blends as photoinitiators for acrylates. However, their efficiency was inferior compared to commercial α cleavage photoinitiators. On the other hand, formulations based on certain maleimides and vinyl ether functional resins or/and reactive thinners could be cured without additional photoinitiators. The possibilities and limitations found are discussed.