0000000000744325
AUTHOR
Maarit Lahtinen
Synthesis of novel reactive coalescing agents and their application in a latex coating
The syntheses and the performance of five glycidyl compounds as novel reactive coalescing agents are presented. The reactive coalescing agents were synthesized with moderate yields, structures were verified using spectroscopic methods, and the properties of glycidyl compounds such as boiling points and evaporation rates were measured. The applicability of five glycidyl compounds as reactive coalescing agents was tested in characterized carboxyl functional latex. Properties like pendulum hardness, gloss, and efficiency of the glycidyl compound to reduce the minimum film-formation temperature (MFFT) of the latex were measured from the cured latex films. The application test results were compa…
An Extraction-Based Assay for Neutral Anionophores: The Measurement of High Binding Constants to Steroidal Receptors in a Nonpolar Solvent
The extraction-based proto- col for measuring binding constants, developed by Cram and co-workers, has been extended for use with anionic substrates. The method is especially useful for high-affinity receptors, allow- ing very high binding constants to be measured in nonpolar solvents. Distri- bution constants Kd between chloroform and water have been obtained for tet- raethylammonium chloride and bro- mide, thus calibrating the method for these two substrates. Application to steroidal podands 5 ± 9 has confirmed the ability of electron-withdrawing groups to enhance hydrogen-bond do- nor capabilities. Binding constants of 3 10 71 have been measured for the most powerful receptor 7. An X-ray…