Colored Charge-Transfer Complexes from N,N-Dimethyl-p-Toluidine
- 1 May 1975
- journal article
- Published by SAGE Publications in Journal of Dental Research
- Vol. 54 (3) , 588-598
- https://doi.org/10.1177/00220345750540033101
Abstract
Yellow mixtures form on adding essentially colorless N,N-dimethyl-p-toluidine (DMPT) to colorless methacrylate monomers containing phthalate, isophthalate, or terephthalate diester groups. The color-causing interactions between the amines and monomers were investigated using ultraviolet spectroscopy. Equations were derived for predicting interactions between formulation ingredients and DMPT that would lead to undesired color.Keywords
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