T h i n k thiols· Protect polymers from oxygen attack. Preventing oxidative degradation of hydrocarbons and polymers is one of the jobs organosulfurs do best. As antioxidants, they could be just what you've been looking for to preserve original product quality and freshness. ^lllf Mercaptans are ideal building blocks for making sulfur-bearing compounds that have antioxidant properties. The sulfur atom destroys harmful hydroperoxides that build up in polymers, thu^jjjffotecting the hydrocarbon chain from degrading to aldehydes and ketones, with cleavage of the hydrocarbon chain and loss of desired properties. Introduce the sulfur atom as a s o u r f p g c w • • • of antioxidant property, and you've g o f a M * ^ l l J F two-way choice. Use a mercaptan-based VH^tk I C compound as an additive. Or build tlfe CHIFMIC Hl A sulfur atom into the polymer chain by
reacting with a mercaptan. Biodegradability is another thiol plus. Extensive field data indicate that compounds based on mercaptans show biodegradable properties. And with the other talents they have, you'll also find them highly useful in surfactants, agricultural and industrial biocides, pharmaceuticals, a wide range of syntheses. Nature made organosulf urs unique. Pennwalt makes them plentiful, in a range of alkyl mercaptans from Ci through Cis. The world's leading capacity, continuing research, new products, new applications, odor-control service, are just some of the reasons why, "When you want mercaptans, check with the J \ A / \ | T leader...Pennwalt." Write for I V V n L I literature. Organic Chemicals Division, ifOUiPMfNi Pennwalt Corporation, Three Parkway, RODUCTS Philadelphia, Pa. 19102.
£3 PENNNAALT
urope: Vondelingenplaat B.V.. Rotterdam, 3031. P.O. Box 7120; Telex 28919 • Telephone: (010) 381200 )an: Pennwalt Japan Ltd., Daiichi-Chuo Bldg, Chuo-Ku, Tokyo; Tolox J26184 • Telephone: (03) 271-239£
