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A metallized thermoset containing a crosslinked metallized polymer having a backbone having an acetylenic repeat unit and--SiR2--(O--SiR2)n--and/or--SiR2--(O--SiR2)n-[Cb-SiR2--(O--SiR 2)n]m--. At least one of the acetylenic repeat units contains a (MLx)y-acetylene complex. The metallized thermoset c

A metallized thermoset containing a crosslinked metallized polymer having a backbone having an acetylenic repeat unit and--SiR2--(O--SiR2)n--and/or--SiR2--(O--SiR2)n-[Cb-SiR2--(O--SiR 2)n]m--. At least one of the acetylenic repeat units contains a (MLx)y-acetylene complex. The metallized thermoset contains a crosslink between acetylene groups and/or a polycarbosiloxane crosslink. M is a metal, L is a ligand, x and y are positive integers, R is an organic group, Cb is a carborane, and n and m are greater than or equal to zero. A method of making a metallized thermoset by providing a metallized polymer and heating the metallized polymer. The metallized polymer contains the above backbone. Heating the metallized polymer forms crosslinks between acetylene groups and/or polycarbosiloxane crosslinks.

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What is claimed is: 1. A metallized thermoset comprising: a crosslinked metallized polymer comprising a backbone comprising: an acetylenic repeat unit, at least one of the acetylenic repeat units comprising a (MLx)y-acetylene complex; wherein each M is an independently selected metal; wherein each

What is claimed is: 1. A metallized thermoset comprising: a crosslinked metallized polymer comprising a backbone comprising: an acetylenic repeat unit, at least one of the acetylenic repeat units comprising a (MLx)y-acetylene complex; wherein each M is an independently selected metal; wherein each L is an independently selected ligand; and wherein x and y are positive integers; and one or more repeat units selected from--SiR2--(O--SiR2)n--and--SiR2--(O--SiR2)n-[Cb-SiR2--(O--SiR 2)n]m--; wherein each R is an independently selected organic group; wherein each Cb is an independently selected carborane; and wherein each n is an independently selected integer greater than or equal to one; and wherein each m is an independently selected integer greater than or equal to zero; wherein the metallized thermoset comprises one or more of a crosslink between acetylene groups and a polycarbosiloxane crosslink. 2. The metallized thermoset of claim 1, wherein each acetylenic repeat unit consists of two groups independently selected from acetylene and (MLx)y-acetylene complex. 3. The metallized thermoset of claim 1, wherein each M is independently selected from main group metals, transition metals, lanthanides, actinides, cobalt, molybdenum, ruthenium, iron, copper, vanadium, chromium, tungsten, manganese, technetium, rhenium, osmium, rhodium, iridium, nickel, gold, palladium, platinum, zirconium, magnesium, samarium, and aluminum. 4. The metallized thermoset of claim 1, wherein each L is independently selected from carbonyl, cyclopentadienyl, pentamethylcyclopentadienyl, trimethylsilylcyclopentadienyl, hexafluroacetylacetonate, cyclooctadiene, acetylacetonate, methyl cyanide, methyl, oxide, thiocyanide, chloride, amino, nitro, trifluoromethylsulfide, trifluoroacetylacetonate, cyano, cyanide, and isocyanide. 5. The metallized thermoset of claim 1, wherein each Cb is--CB10H10C--. 6. The metallized thermoset of claim 1, wherein each R is methyl. 7. The metallized thermoset of claim 1, wherein the backbone further comprises: one or more metallic repeat units selected from metallocenylene,-M'Cp2-, and-M'L'z-; wherein each M' is a metal; wherein Cp is cyclopentadienyl; wherein each L' is an independently selected ligand; and wherein each z is an integer from 2 to 6. 8. The metallized thermoset of claim 7, wherein each metallocenylene is ferrocenylene. 9. The metallized thermoset of claim 7, wherein each M' is independently selected from main group metals, transition metals, lanthanides, actinides, iron, ruthenium, osmium, molybdenum, zirconium, vanadium, tungsten, titanium, platinum, nickel, rhodium, and palladium. 10. The metallized thermoset of claim 7, wherein each L' is independently selected from amino, nethylene, and cyclooctadiene. 11. The metallized thermoset of claim 1, wherein the backbone comprises the formula: wherein Q is the acetylenic repeat unit; wherein Y is a metallic repeat unit selected from metallocenylene,-M'Cp2-, and-M'L'z-; wherein each M' is a metal; wherein Cp is cyclopentadienyl; wherein each L' is an independently selected ligand; and wherein each z is an integer from 2 to 6; wherein each p is an integer greater than or equal to zero. 12. The metallized thermoset of claim 11, wherein n, m, and p are, as a group, selected from: n is 1, m is 1, and p is zero; n is 1, m is zero, and p is zero; n is 1, m is 1, and p is 1; and n is 1, m is zero, and p is 1. 13. A composition comprising: the metallized thermoset of claim 1; and one or more metallic components dispersed homogeneously throughout the composition, the metallic component selected from free metal atoms, metal clusters, metal nanoparticles, organometallic compounds, organometallic units, and metal salts. 14. A composition comprising: the metallized thermoset of claim 1; and a siloxane thermoset comprising a backbone comprising: an acetylenic repeat unit; and one or more repeat units selected from--SiR2--(O--SiR2)n--and--SiR2--(O--SiR2)n-[Cb-SiR2--(O--SiR 2)n]m--; wherein the siloxane thermoset comprises one or more of crosslinks between acetylene groups and polycarbosiloxane crosslinks. 15. The composition of claim 14, further comprising: one or more metallic components dispersed homogeneously throughout the composition, the metallic component selected from free metal atoms, metal clusters, metal nanoparticles, organometallic compounds, organometallic units, and metal salts. 16. The metallized thermoset of claim 1, wherein the backbone comprises the formula: wherein Q is the acetylenic repeat unit. 17. The metallized thermoset of claim 1, wherein the backbone consists of the formula: wherein Q is the acetylenic repeat unit. 18. A composition comprising: a siloxane thermoset made by crosslinking a linear polymer comprising a backbone comprising: an acetylene group; and one or more repeat units selected from--SiR2--(O--SiR2)n--and--SiR2--(O--SiR2)n-[Cb-SiR2--O--SiR 2)n]m--; wherein each R is an independently selected organic group; wherein each Cb is an independently selected carborane; and wherein each n is an independently selected integer greater than or equal to one; and wherein each m is an independently selected integer greater than or equal to zero; wherein the siloxane thermoset comprises one or more of crosslinks between acetylene groups and polycarbosiloxane crosslinks; and a metallic compound capable of reacting with the acetylene group to form a (MLx)y-acetylene complex; wherein each M is an independently selected metal; wherein each L is an independently selected ligand; and wherein x and y are positive integers. 19. The composition of claim 18, wherein the metallic compound is one or more of V(CO)6, Cr(CO)6, Mo(CO)6, W(CO)6, Mn2(CO)10, Tc2(CO)10, Re2(CO)10, Fe(CO)5, Fe2(CO)9, Fe3(CO)12, Ru(CO)5, Ru3(CO)12, Os(CO)5, Os3(CO)12, Co2(CO)8, Co3(CO)12, Co6(CO)16, Rh4(CO)12, Rh6(CO)16, Ir4(CO)12, Ir6(CO)16, Ni(CO)4, Cp(CH3)5Re(CO)3, Cp(CH3)5Re(CO)3, [Cp(CH3)5]2Cr2(CO)4, Cp2Fe2(CO)4, C6H8Fe(CO)3, C6H8Fe(CO)3, C8H8Fe(CO)3, CpCr(CO)3, Cp2Mo2(CO)6, C7H8Mo(CO)3, CpMn(CO)3, Cp(Si(CH3)3)Mn(CO)3, Cp(CH3)5Rh(CO)2, Cp2Ru2(CO)4, (hexafluroacetylacetonate)Cu(cyclooctadiene), Cr(hexafluroacetylacetonate), Co(acetylacetonate) (CH3CN)4Cu(hexafluroacetylacetonate), (CH3)2Au(acetylacetonate), (cyclooctadiene)Ir(acetylacetonate), Fe(acetylacetonate), Mn(acetylacetonate), MoO2(acetylacetonate)2, Ni(hexafluroacetylacetonate), Ni(cyclooctadiene)2, Ni(SCN)2, PdCl2(CH3CN)2, Pd(NH3)2(NO2)2, Pt(NH3)2Cl2, Rh(cyclooctadiene)2(SO3CF3), Rh(cyclooctadiene)Cl2, Zr(trifluoroacetylacetonate), MgCl2, SmCl2, and AlCl2. 20. A method of making a metallized composition comprising: providing the composition of claim 18; and heating the composition to form at least one (MLx)y-acetylene complex. 21. The composition of claim 18, wherein the backbone comprises the formula: wherein Q is the acetylenic repeat unit. 22. The composition of claim 18, wherein the backbone consists of the formula: wherein Q is the acetylenic repeat unit. 23. A composition comprising: a siloxane thermoset made by crosslinking a linear polymer comprising a backbone comprising: an acetylene group; and one or more repeat units selected from--SiR2--(O--SiR2)n--and--SiR2--(O--SiR2)n-[Cb-SiR2--(O--SiR 2)n]m--; wherein each R is an independently selected organic group; wherein each Cb is an independently selected carborane; and wherein each n is an independently selected integer greater than or equal to one; and wherein each m is an independently selected integer greater than or equal to zero; wherein the siloxane thermoset comprises one or more of crosslinks between acetylene groups and polycarbosiloxane crosslinks; and one or more metallic components dispersed homogeneously throughout the composition, the metallic component selected from metal salts and metallic compounds capable of reacting with the acetylene group to form a (MLx)y-acetylene complex; wherein each M is an independently selected metal; wherein each L is an independently selected ligand; and wherein x and y are positive integers. 24. The composition of claim 23, wherein the backbone comprises the formula: wherein Q is the acetylenic repeat unit. 25. The composition of claim 23, wherein the backbone consists of the formula: wherein Q is the acetylenic repeat unit. 26. A method of making a metallized thermoset comprising: providing a metallized polymer comprising a backbone comprising: an acetylenic repeat unit, at least one of the acetylenic repeat units comprising a (MLx)y-acetylene complex; wherein each M is an independently selected metal; wherein each L is an independently selected ligand; and wherein x and y are positive integers; and one or more repeat units selected from--SiR2--(O--SiR2)n--and--SiR2--(O--SiR2)n-[Cb-SiR2--(O--SiR 2)n]m--; wherein each R is an independently selected organic group; wherein each Cb is an independently selected carborane; and wherein each n is an independently selected integer greater than or equal to one; and wherein and each m is an independently selected integer greater than or equal to zero; and heating the metallized polymer to form one or more crosslinks selected from a crosslink between acetylene groups and polycarbosiloxane crosslink. 27. The method of claim 26, wherein each acetylenic repeat unit consists of two groups independently selected from acetylene and (MLx)y-acetylene complex. 28. The method of claim 26, wherein each M is independently selected from main group metals, transition metals, lanthanides, actinides, cobalt, molybdenum, ruthenium, iron, copper, vanadium, chromium, tungsten, manganese, technetium, rhenium, osmium, rhodium, iridium, nickel, gold, palladium, platinum, zirconium, magnesium, samarium, and aluminum. 29. The method of claim 26, wherein each L is independently selected from carbonyl, cyclopentadienyl, pentamethylcyclopentadienyl, trimethylsilylcyclopentadienyl, hexafluroacetylacetonate, cyclooctadiene, acetylacetonate, methyl cyanide, methyl, oxide, thiocyanide, chloride, amino, nitro, trifluoromethylsulfide, trifluoroacetylacetonate, cyano, cyanide, and isocyanide. 30. The method of claim 26, wherein each Cb is--CB10H10C--. 31. The method of claim 26, wherein each R is methyl. 32. The method of claim 26, wherein the backbone further comprises: one or more metallic repeat units selected from metallocenylene, ferrocenylene,-M'Cp2-, and-M'L'z-; wherein each M' is a metal; wherein Cp is cyclopentadienyl; wherein each L' is an independently selected ligand; and wherein each z is an integer from 2 to 6. 33. The method of claim 32, wherein each M' is independently selected from main group metals, transition metals, lanthanides, actinides, iron, ruthenium, osmium, molybdenum, zirconium, vanadium, tungsten, titanium, platinum, nickel, rhodium, and palladium. 34. The method of claim 32, wherein each L' is independently selected from amino, ethylene, and cyclooctadiene. 35. The method of claim 26, wherein the backbone comprises the formula: wherein Q is the acetylenic repeat unit; wherein Y is a metallic repeat unit selected from metallocenylene,-M'Cp2-, and-M'L'z-; wherein each M' is a metal; wherein Cp is cyclopentadienyl; wherein each L' is an independently selected ligand; and wherein each z is an integer from 2 to 6; wherein each p is an integer greater than or equal to zero. 36. The method of claim 35, wherein n, m, and p are, as a group, selected from: n is 1, m is 1, and p is zero; n is 1, m is zero, and p is zero; n is 1, m is 1, and p is 1; and n is 1, m is zero, and p is 1. 37. The method of claim 26, wherein the backbone comprises the formula: wherein Q is the acetylenic repeat unit. 38. The method of claim 26, wherein the backbone consists of the formula: wherein Q is the acetylenic repeat unit.