atoms, inclusive; (d) an alkenyl of 2 to 8 carbon atoms, inclusive, which may be straight chain or branched; or (e) RaQ2Rb wherein Q2 is ???O??? or ???S???; wherein Ra is alkylene of 0 to 6 carbons atoms, inclusive, which may be straight chain or branched and wherein Rb is alkyl of 0 to 8 carbon atoms, inclusive, which may be straight chain or branched, provided when Rb is 0, then Rb is a hydrogen