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| | 2,3,3,4-biphenyl tetracarboxylic dianhydride Basic information |
| Product Name: | 2,3,3,4-biphenyl tetracarboxylic dianhydride | | Synonyms: | 4,5'-bi-2-benzofuran-1,1',3,3'-tetrone;2,3,3',4'-biphenyl tetraCarbocylic dianhydride;[4,5']BIISOBENZOFURANYL-1,3,1',3'-TETRAONE;1,1'-Biphenyl-2,3,3',4'-tetracarboxylic acid 2,3:3',4'-dianhydride;2,3,3',4'-Biphenyltetracarboxylic 2,3:3',4'-dianhydride;4,5'-Bi(1,3-isobenzofurandione);4,5'-Bi[isobenzofuran]-1,1',3,3'-tetrone;4,5'-Bi[isobenzofuran-1,3-dione] | | CAS: | 36978-41-3 | | MF: | C16H6O6 | | MW: | 294.22 | | EINECS: | 811-539-3 | | Product Categories: | strong recommend;36978-41-3 | | Mol File: | 36978-41-3.mol |  |
| | 2,3,3,4-biphenyl tetracarboxylic dianhydride Chemical Properties |
| Melting point | 199 °C | | Boiling point | 609.3±48.0 °C(Predicted) | | density | 1.625±0.06 g/cm3(Predicted) | | storage temp. | Inert atmosphere,Room Temperature | | form | powder to crystal | | color | White to Almost white | | InChI | InChI=1S/C16H6O6/c17-13-9-5-4-7(6-11(9)15(19)21-13)8-2-1-3-10-12(8)16(20)22-14(10)18/h1-6H | | InChIKey | FYYYKXFEKMGYLZ-UHFFFAOYSA-N | | SMILES | C1(=O)C2=C(C(C3C=CC4C(=O)OC(=O)C=4C=3)=CC=C2)C(=O)O1 | | CAS DataBase Reference | 36978-41-3(CAS DataBase Reference) | | EPA Substance Registry System | [4,5'-Biisobenzofuran]-1,1',3,3'-tetrone (36978-41-3) |
| | 2,3,3,4-biphenyl tetracarboxylic dianhydride Usage And Synthesis |
| Description | 2,3,3,4-biphenyl tetracarboxylic dianhydride, also known as a-BPDA, is a high-performance polymer with excellent heat resistance, solvent resistance, radiation resistance, and impressive mechanical and dielectric properties. It holds great potential for applications across numerous industries and material fields. | | Chemical Properties | White to Almost white powder to crystal. | | Uses | 2,3,3',4'-Biphenyltetracarboxylic dianhydride be used for the preparation of a polyimide material. | | Preparation | The preparation of 2,3,3',4'-biphenyl tetracarboxylic dianhydride is as follows:In a 1000 ml three-necked flask, 18.3 g (0.1 mol) of 4-chlorophthalic anhydride and 18.3 g (0.1 mol) were added 3-chlorophthalic anhydride, 300 g of anisole as solvent, 0.13 g (0.001 mol) of nickel chloride as a catalyst, 0.198 g (0.001 mol) of C-1 as a catalyst ligand, and 0.03 g (0.0003 mol) of sodium bromide as a catalyst Auxiliary, 13 g (0.2 mol) of zinc powder was used as a reducing agent, and the reaction was stirred at 30 ° C for 8 hours under a nitrogen atmosphere. The reaction solution was filtered to remove insoluble solids in the reaction liquid. 300 g of methanol was added to the filtration mother liquor, and the product was precipitated, filtered, and dried to obtain 25.8 g of the product 2,3,3',4'-biphenyltetracarboxylic dianhydride, yield 87.7%. 
| | Application | 2,3,3,4-biphenyl tetracarboxylic dianhydride (a-BPDA) and polyamides (PAA) derived from p-phenylenediamine (PDA) or 4,4'-oxydiphenylamine (ODA) undergo thermal imidisation and can be used for the preparation of asymmetric biphenyl-type polyimides (PI). Compared to the semi-rigid s-BPDA/PDA, the a-BPDA/PDA polyimides have a significantly bent chain structure. However, a-BPDA/PDA films annealed at 350 °C show higher Tg than s-BPDA/PDA films prepared under the same conditions. a-BPDA-based PIs have unexpectedly high Tg values, which may be attributed to the cranked axial motion limiting conformational changes. The diimide synthesised from a-BPDA and cyclohexylamine displays long-lived luminescence of up to 1.3 s after UV irradiation. |
| | 2,3,3,4-biphenyl tetracarboxylic dianhydride Preparation Products And Raw materials |
| Raw materials | 4-(1,3-dioxo-2-benzofuran-4-yl)-2-benzofuran-1,3-dione-->3,3',4,4'-Biphenyltetracarboxylic dianhydride-->5-Iodoisobenzofuran-1,3-dione-->3-IODOPHTHALIC ANHYDRIDE-->1,1'-Biphenyl-2,3,3',4'-tetracarboxylic acid-->3-Bromophthalic anhydride-->4-BROMO PHTHALIC ANHYDRUS |
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