Cross-linkable flame retardant materials
A cross-linkable flame retardant material includes a terminal furan-containing flame retardant moiety. The terminal furan-containing flame retardant moiety includes a furan moiety bonded to a phosphorus moiety via a phosphoryl linkage or via a phosphinyl linkage.
1. A process of forming a cross-linkable flame retardant polymeric material, the process comprising:
utilizing furan dicarboxylic dimethyl ester (FDME) to form a FDME-based polymeric material having a terminal carboxylic acid group; and
chemically reacting a furan-containing flame retardant molecule with the FDME-based polymeric material to form a cross-linkable flame retardant polymeric material, wherein the furan-containing flame retardant molecule includes a furan moiety bonded to a phosphorus moiety via a phosphoryl linkage or via a phosphinyl linkage.
2. The process of claim 1 , wherein the furan moiety includes a methylfuran group.
3. The process of claim 2 , wherein the furan-containing flame retardant molecule further comprises a second furan moiety bonded to the phosphorus moiety, the second furan moiety including a second methylfuran group.
4. The process of claim 1 , wherein the furan-containing flame retardant molecule is formed from furfuryl alcohol.
5. The process of claim 1 , wherein the furan-containing flame retardant molecule includes a chloride group bound to the phosphorus moiety, the chloride group to chemically react with the terminal carboxylic acid group of the FDME-based polymeric material.
6. The process of claim 1 , wherein the furan-containing flame retardant molecule includes a difuran-functionalized phosphate molecule, a difuran-functionalized phosphine oxide molecule, a monofuran-functionalized phosphate molecule, or a monofuran-functionalized phosphonate molecule.
7. The process of claim 1 , wherein the FDME is formed from fructose.