Organic frame material having isopoly-molybdic acid metal for manufacturing polylactic acid and method of manufacturing the same
US12304996B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2022 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Dec 25, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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(β-Mo8O26)0.5(H2O)]. tfbtb is a 2,3,5,6-tetrafluoro-bis(1,2,4-triazole-1-methyl) benzene ligand, and [β-Mo8O26] is a β 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. The polylactic acid has great potential in the fields of packaging materials and medical high polymer materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.