Synthesis of corrosion-inhibiting polythioesters

✍ Scribed by Truesdell, J. W. ;Van De Mark, M. R.

• Book ID: 105333951
• Publisher: John Wiley and Sons
• Year: 1982
• Weight: 455 KB
• Volume: 20
• Category: Article
• ISSN: 0360-6376
• DOI: 10.1002/pol.1982.170200721

✦ Synopsis

Abstract

Binary condensation copolymers of five monomers known to be corrosion inhibitors were synthesized by solution polymerization. The copolymers synthesized were poly(1,2‐ethanedithiol‐thiodiglycolate), poly(1,3‐propanedithiol‐3,3′‐thiodipropionate), poly(1,2‐ethanedithiol‐3,3′‐thiodipropionate), and poly(2,5‐dimercapto‐1,3,4‐thiadiazole‐3,3′‐thiodipropionate). Yields ranged from 77 to 89% and molecular weights from 10,100 to 24,300. Attempts to produce the condensation copolymers of thiodiglycolic acid chloride and 1,3‐propanedithiol or 2,5‐dimercapto‐1,3,4‐thiadiazole failed, yielding only telomeric products. The copolymers that were synthesized demonstrated significant corrosion‐inhibitory properties on steel samples in salt water.