Abstract: An organic frame material having zinc containing isopoly-molybdic acid metal, a method of manufacturing the same, and the application thereof are provided. The organic frame material having zinc containing isopoly-molybdic acid metal includes a three-dimensional network structure in which the zinc ions coordinate with 2,3,5,6-tetrafluoro-bis (1,2,4-triazole-1-methyl) benzene ligands and trinuclear molybdate anions. The organic frame material having zinc containing isopoly-molybdic acid metal exhibits high catalytic activity, thermal stability, low toxicity, ease of synthetization and use, and strong reproducibility.

Abstract: An isopoly-molybdic acid coordination polymer and a method of manufacturing the same are provided. It relates to the field of catalysts for polylactic acid. A chemical formula of the isopoly-molybdic acid coordination polymer is [Mo2O4(?2-OH)2(Htrz)]. Htrz is a 1,2,4-triazole ligand, and (Mo2O4)2+ is a binuclear isopoly-molybdic radical cation. (?2-OH) is the bridging hydroxyl group. Sodium molybdate dihydrate and zinc nitrate hexahydrate undergo hydrothermal reaction in a closed condition to obtain an isopoly-molybdic acid coordination polymer that has a secondary layered structure. The synthesis of the isopoly-molybdic acid coordination polymer is simple with high yield and reproducibility. The isopoly-molybdic acid coordination polymer shows high catalytic activity towards the bulk ring-opening polymerization of lactide. The resulting polylactic acid has a weight average molecular weight exceeding 110,000. The polylactic acid has great potential in the fields of medical, degradable and packaging materials.

Abstract: An organic frame material having a cobalt-containing isopoly-molybdic acid metal, a method of manufacturing the same, and applications thereof are provided. The organic frame material having a cobalt-containing isopoly-molybdic acid metal includes a three-dimensional network structure comprising cobalt ions coordinated with 2,3,5,6-tetrafluoro-bis (1,2,4-triazole-1-methyl) benzene ligands and trinuclear molybdate anions. The organic frame material having a cobalt-containing isopoly-molybdic acid metal has higher catalytic activity towards the bulk ring-opening of p-dioxanone. The resulting poly(p-dioxanone) has a weight average molecular weight exceeding 70,000 and is capable of being applied in the field of high polymer materials.

Abstract: An isopoly-vanadic acid coordination polymer catalyst, method of manufacturing the same, and application thereof are provided. The isopoly-vanadic acid coordination polymer catalyst has a chemical formula of [Co(atrz)(V2O6)]. The atrz is a 4-amino-1,2,4-triazole ligand, and [V2O6] is a binuclear vanadate anion. The isopoly-vanadic acid coordination polymer catalyst shows strong thermal stability, and it is easy to synthesize with high reproducibility. The isopoly-vanadic acid coordination polymer catalyst has a good catalytic activity towards the bulk ring-opening of p-dioxanone. The resulting poly(p-dioxanone) is stable and uniform. The high molecular weight of the resulting poly(p-dioxanone) has great potential in high polymer materials, in particular the field of medical high polymer materials.

Abstract: A ternary composite catalyst of diethylzinc and yttrium trifluoroacetate loaded on chitin for copolymerization of carbon dioxide, epoxy cyclohexane and ethylene oxide is provided. The ternary composite catalyst exhibits strong catalytic activity for the ternary copolymerization of carbon dioxide, cyclohexane oxide and ethylene oxide. A high molecular weight and content of ester chain is maintained. Conventional rare earth ternary catalysts leave residues in the polymer, and the polymer requires rinsing with hydrochloric acid. The ternary composite catalyst can be removed through filtration. The average molecular weight of the resulting polycarbonate is more than 100,000, and the ester chain content is more than 90%. The resulting polymer has a lower metal content. The ternary composite catalyst can be used in agricultural film, disposable packaging and other polymer materials.

Abstract: An isopoly-molybdic acid coordination polymer catalyst for manufacturing polycaprolactone and method of manufacturing the same are provided. It relates to a field of catalysts from polycaprolactone. The chemical formula of the isopoly-molybdic acid coordination polymer catalyst is [Cu2(trz)2(?-Mo8O26)0.5(H2O)2]. In the chemical formula, trz is 1,2,4-triazole negative monovalent anion, and [?-Mo8O26] is a ? type octamolybdate anion. This synthesis method offers higher yield with strong reproducibility. The resulting crystal products have higher purity. The isopoly-molybdic acid coordination polymer catalyst shows high catalytic activity towards the bulk ring-opening polymerization of caprolactone. The resulting polycaprolactone has a weight average molecular weight exceeding 50,000 and a narrow molecular distribution. The polycaprolactone has great potential in the application of low- to medium-temperature thermoplastic medical materials.

Abstract: An isopoly-molybdic acid coordination polymer catalyst for manufacturing polycaprolactone and method of manufacturing the same are provided. It relates to a field of catalysts from polycaprolactone. The chemical formula of the isopoly-molybdic acid coordination polymer catalyst is [Cu2(trz)2(?-Mo8O26)0.5(H2O)2]. In the chemical formula, trz is 1,2,4-triazole negative monovalent anion, and [?-Mo8O26] is a ? type octamolybdate anion. This synthesis method offers higher yield with strong reproducibility. The resulting crystal products have higher purity. The isopoly-molybdic acid coordination polymer catalyst shows high catalytic activity towards the bulk ring-opening polymerization of caprolactone. The resulting polycaprolactone has a weight average molecular weight exceeding 50,000 and a narrow molecular distribution. The polycaprolactone has great potential in the application of low- to medium-temperature thermoplastic medical materials.

Abstract: An isopoly-vanadic acid coordination polymer catalyst, method of manufacturing the same, and application thereof are provided. The isopoly-vanadic acid coordination polymer catalyst has a chemical formula of [Co(atrz)(V2O6)]. The atrz is a 4-amino-1,2,4-triazole ligand, and [V2O6] is a binuclear vanadate anion. The isopoly-vanadic acid coordination polymer catalyst shows strong thermal stability, and it is easy to synthesize with high reproducibility. The isopoly-vanadic acid coordination polymer catalyst has a good catalytic activity towards the bulk ring-opening of p-dioxanone. The resulting poly(p-dioxanone) is stable and uniform. The high molecular weight of the resulting poly(p-dioxanone) has great potential in high polymer materials, in particular the field of medical high polymer materials.

Abstract: An organic frame material having isopoly-molybdic acid metal for manufacturing polylactic acid and method of manufacturing the same is provided. The chemical formula of the organic frame material having isopoly-molybdic acid metal is [Cu(tfbtb)0.5(?-Mo8O26)0.5(H2O)]. tfbtb is a 2,3,5,6-tetrafluoro-bis (1,2,4-triazole-1-methyl) benzene ligand, and [?-Mo8O26] is a ? type octamolybdate anion. Sodium molybdate dihydrate, copper salt and organic ligand 2,3,5,6-tetrafluoro-bis (1,2,4-triazole-1-methyl) benzene undergo hydrothermal reaction in a closed condition to form the organic frame material having copper containing isopoly-molybdic acid metal that has a three-dimensional structure. The synthesis method is simple with high yield and reproducibility. The organic frame material having isopoly-molybdic acid metal shows high catalytic activity towards the ring-opening polymerization of lactide. The resulting polylactic acid has a weight average molecular weight exceeding 60,000.

Abstract: An isopoly-molybdic acid coordination polymer and a method of manufacturing the same are provided. It relates to the field of catalysts for polylactic acid. A chemical formula of the isopoly-molybdic acid coordination polymer is [Mo2O4(?2-OH)2(Htrz)]. Htrz is a 1,2,4-triazole ligand, and (Mo2O4)2+ is a binuclear isopoly-molybdic radical cation. (?2-OH) is the bridging hydroxyl group. Sodium molybdate dihydrate and zinc nitrate hexahydrate undergo hydrothermal reaction in a closed condition to obtain an isopoly-molybdic acid coordination polymer that has a secondary layered structure. The synthesis of the isopoly-molybdic acid coordination polymer is simple with high yield and reproducibility. The isopoly-molybdic acid coordination polymer shows high catalytic activity towards the bulk ring-opening polymerization of lactide. The resulting polylactic acid has a weight average molecular weight exceeding 110,000. The polylactic acid has great potential in the fields of medical, degradable and packaging materials.

Abstract: An organic frame material having a cobalt-containing isopoly-molybdic acid metal, a method of manufacturing the same, and applications thereof are provided. The organic frame material having a cobalt-containing isopoly-molybdic acid metal includes a three-dimensional network structure comprising cobalt ions coordinated with 2,3,5,6-tetrafluoro-bis (1,2,4-triazole-1-methyl) benzene ligands and trinuclear molybdate anions. The organic frame material having a cobalt-containing isopoly-molybdic acid metal has higher catalytic activity towards the bulk ring-opening of p-dioxanone. The resulting poly(p-dioxanone) has a weight average molecular weight exceeding 70,000 and is capable of being applied in the field of high polymer materials.

Abstract: An organic frame material having zinc containing isopoly-molybdic acid metal, a method of manufacturing the same, and the application thereof are provided. The organic frame material having zinc containing isopoly-molybdic acid metal includes a three-dimensional network structure in which the zinc ions coordinate with 2,3,5,6-tetrafluoro-bis (1,2,4-triazole-1-methyl) benzene ligands and trinuclear molybdate anions. The organic frame material having zinc containing isopoly-molybdic acid metal exhibits high catalytic activity, thermal stability, low toxicity, ease of synthetization and use, and strong reproducibility.

Abstract: A ternary composite catalyst of diethylzinc and yttrium trifluoroacetate loaded on chitin for copolymerization of carbon dioxide, epoxy cyclohexane and ethylene oxide is provided. The ternary composite catalyst exhibits strong catalytic activity for the ternary copolymerization of carbon dioxide, cyclohexane oxide and ethylene oxide. A high molecular weight and content of ester chain is maintained. Conventional rare earth ternary catalysts leave residues in the polymer, and the polymer requires rinsing with hydrochloric acid. The ternary composite catalyst can be removed through filtration. The average molecular weight of the resulting polycarbonate is more than 100,000, and the ester chain content is more than 90%. The resulting polymer has a lower metal content. The ternary composite catalyst can be used in agricultural film, disposable packaging and other polymer materials.