Cleavable epoxy resins: Design for disassembly of a thermoset

✍ Scribed by Stephen L. Buchwalter; Laura L. Kosbar

• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 819 KB
• Volume: 34
• Category: Article
• ISSN: 0887-624X
• DOI: 10.1002/(sici)1099-0518(19960130)34:2<249::aid-pola11>3.0.co;2-q

✦ Synopsis

A series of cycloaliphatic diepoxides with cleavable acetal links were synthesized and characterized. These materials were shown to undergo thermosetting reactions with cyclic anhydride in very similar fashion to a commercial cycloaliphatic epoxide, but cured samples were easily dissolved in a variety of acid-containing solvent mixtures. Such materials can extend the utility of thermosetting epoxies by preserving their positive attributes while eliminating their well known intractability after curing. The latter property is particularly a problem for manufacturers designing products for disassembly at end of use in order to facilitate recycling.