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Bisphenol A is difunctional and used to produce epoxy resin and polycarbonate. 4-tert-Butylphenol is monofunctional and so in polymer science terms, bisphenol A is a polymer chain extender but 4-tert-butylphenol is a chain stopper or sometimes called endcapper. It is thus use to control molecular weight by limiting chain growth.
Tris(3,5-di-tert-butyl-4-hydroxybenzyl) isocyanurate is a chemical compound used as a polymer stabilizer in plastics. Like other hindered phenols it acts as a primary antioxidant. More than 1000 tonnes per year are used in the EU.
Bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphite is an organophosphite used as a polymer stabilizer in plastics. Like other phosphite antioxidants it primarily acts to remove hydroperoxides and is typically used in combination with hindered phenolic antioxidants such as pentaerythritol tetrakis(3,5-di-tert-butyl-4-hydroxyhydrocinnamate) .
Examples of 2-(2-hydroxyphenyl)-2H-benzotriazoles Name Acronym Structural formula R 1 R 2 R 3; 2-(2H-Benzotriazol-2-yl)-4-methylphenol: UV-P – methyl – 2-(2H-Benzotriazol-2-yl)-4-tert-butylphenol
English: Chemical structure of 4-tert-butylphenol, also known as p-tert-butylphenol or para-tert-butylphenol. Date: 23 July 2018: Source: Own work: Author: Hbf878:
Pages in category "Tert-butyl compounds" The following 200 pages are in this category, out of approximately 203 total. This list may not reflect recent changes .
UV-328 is a light stabilizer for a variety of plastics and other organic substrates. Its use is recommended for the stabilization of styrene homopolymers and copolymers, acrylic polymers, unsaturated polyesters, polyvinyl chloride, polyolefins, polyurethanes, polyacetals, polyvinyl butyral, elastomers and adhesives. [5]
2,4-Di-tert-butylphenol (2,4-DTBP) is a white solid with a phenolic odour. It is primarily used as a raw material for the production of several commercially important antioxidants and phenolic benzotriazole -type UV absorbers .