Polymeric polyols are prevalent in the production of polyurethanes and other specialized polymers. The hydroxyl number (OH#) measures the concentration of hydroxyl groups within the polyol. The ...
The method of determining the hydroxyl number in polyols and oxo alcohols specified in DIN EN ISO 4629-2 derives its theory from the catalytic acetylation of the hydroxyl group. Once the intermediate ...
According to a study published in Water Research in April 2020, superoxide produces hydroxyl radicals in lake water. Hydroxyl radicals break down poorly biodegradable organic matter such as humic ...
Hydroxyl radical footprinting has been widely used for studying the structure of DNA and DNA–protein complexes. The high reactivity and lack of base specificity of the hydroxyl radical makes it an ...
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Understanding Acid Value, Hydroxyl Value, and Isocyanate Content in Polyurethane Raw Materials
Polyurethanes, formed through the reaction of raw polyols with isocyanates, are one of the most widely used types of plastics today. By varying the starting materials, a diverse range of plastics can ...
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