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US 9,175,131 B2Granted
Deoxybenzoin-derived anti-flammable polymers
AssigneeUniversity of Massachusetts
InventorsTodd Emrick, E. Bryan Coughlin, Thangamani Ranganathan, Michael Beaulieu, Richard Farris, Bon-Cheol Ku
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Abstract
The invention provides novel flame-retardant polymers and materials, their synthesis and use. More particularly, the flame-retardant polymers are deoxybenzoin-derived polymers.
Claims6
A polymer comprising a structural repeating unit having the structure of:
- wherein each of R1, R2, and R3 is independently selected from hydrogen, un-substituted or substituted alkyl, and aryl groups and R4 is
- wherein X is a unsubstituted or substituted bivalent alkyl or aryl group, and R5 is a hydrogen, substituted or un-substituted alkyl or aryl group.
A co-polymer comprising a first structural repeating unit having the structure of:
- wherein each of R1, R2, R3 and R4 is independently selected from hydrogen, un-substituted or substituted alkyl, and aryl groups, provided that at least one of R1, R2, R3 and R4 comprises a deoxybenzoin moiety having the structure of:
- and a second structural repeating unit having the structure of
- wherein each of R1′, R2′, R3′ and R4′ is independently selected from hydrogen, un-substituted or substituted alkyl, and aryl groups.
A polymer comprising a structural repeating unit having the structure of:
- wherein each of R1, R2, R3, and R5 is independently selected from hydrogen, un-substituted or substituted alkyl, and aryl groups.
Dependencies are inferred from the claim text.