2,3,3,4-비페닐테트라카복실릭 산 이무수화물

한글명:2,3,3,4-비페닐테트라카복실릭 산 이무수화물

카스 번호36978-41-3

상품명:2,3,3,4-biphenyl tetracarboxylic dianhydride

CBNumberCB9839416

분자식C16H6O6

포뮬러 무게294.22

MOL 파일36978-41-3.mol

동의어(한글)

2,3,3,4-비페닐테트라카복실릭산이무수화물

화학적 성질

녹는점	199 °C
끓는 점	609.3±48.0 °C(Predicted)
밀도	1.625±0.06 g/cm3(Predicted)
저장 조건	Inert atmosphere,Room Temperature
물리적 상태	powder to crystal
색상	흰색에서 거의 흰색
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 데이터베이스	36978-41-3(CAS DataBase Reference)
EPA	[4,5'-Biisobenzofuran]-1,1',3,3'-tetrone (36978-41-3)

위험 및 안전 성명

HS 번호

2922498590

NFPA 704:

	0
2		0

그림문자(GHS)

2,3,3,4-비페닐테트라카복실릭 산 이무수화물 화학적 특성, 용도, 생산

개요
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.
화학적 성질
White to Almost white powder to crystal.
용도
2,3,3',4'-Biphenyltetracarboxylic dianhydride be used for the preparation of a polyimide material.
제조 방법
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%.
주요 응용
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.

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