CB[n] are highly symmetrical macrocyclic hosts composed of glycoluril
units linked through methylene bridges, and they possess highly polar carbonyl portals with a hydrophobic cavity .
As the years pass, more convenient and mild oxidizing agents such as 1,3,4,6-tetrachloro-3[alpha],6[alpha]-diphenyl glycoluril
(Iodogen) have been developed .
1) is a family of relatively new, pumpkin-shaped cavitands composed of n glycoluril
units linked by a pair of methylene groups.
Cucurbit[n]urils (CB[n], n = 5-8 of glycoluril
units) are a class of barrel-shaped macrocyclic hosts with symmetric carbonyl-lined portals [10-16].
(32) Examination of the patent literature related to this product class (36), (37) indicates HEAT thickeners are prepared by the reaction between multifunctional methylolated amines (e.g., melamine, glycoluril
) and polyethylene glycols followed by the incorporation of long chain hydrocarbon hydrophobes.
increase for Cymel, Beckamine, Melmac and Uformite conventional melamine, urea, glycoluril
and benzoguanamine resins; $0.10/increase for Daotan waterborne polyurethane dispersions, Duroxyn solventborne and waterborne epoxy ester resins, Macrynal hydroxylated solventborne polyols, Phenodur phenolic solventborne and waterborne resins and dispersions and Viacryl solventborne acrylic resins; $0.12/lb.
Iodination of proteins, glycoproteins and peptides using a solid-phase oxidizing agent, 1,3,4,6-tetrachloro-3a-diphenyl glycoluril
increase for Cymel conventional urea, melamine benzoquanamine and glycoluril
Crosslinking latex systems based on acrylamide monomers or glycoluril
resins are possible under milder conditions, using latex bound -COOH groups if the latex is first ion-exchanged to convert the acid groups to the -COOH form.
The use of TGIC (triglycidyl isocyanurate) has suffered a rapid decline in recent years as the material was classified as a "Category 2 mutagen." Hydroxyalkylamide (HAA), tetramethoxymethyl glycoluril
(TMMGU) and glycidyl methacrylate (GMA) have been developed as TGIC replacements.