1,1'-ビフェニル-2,3,3',4'-テトラカルボン酸2,3:3',4'-二無水物

危険有害性情報のコード(GHS)

• 絵表示(GHS)

  

• 注意喚起語

  Warning

• 危険有害性情報

  H315：皮膚刺激

  H319：強い眼刺激

  H335：呼吸器への刺激のおそれ

• 注意書き

  P261：粉じん/煙/ガス/ミスト/蒸気/スプレーの吸入を避ける こと。

  P271：屋外または換気の良い場所でのみ使用すること。

  P280：保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。

1,1'-ビフェニル-2,3,3',4'-テトラカルボン酸2,3:3',4'-二無水物 価格

1,1'-ビフェニル-2,3,3',4'-テトラカルボン酸2,3:3',4'-二無水物 化学特性,用途語,生産方法

• 外観

  白色～ほとんど白色粉末～結晶

• 説明

  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.

• 化学的特性

  White to Almost white powder to crystal.

• 使用

  2,3,3',4'-Biphenyltetracarboxylic dianhydride be used for the preparation of a polyimide material.

• 製造方法

  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%. 

  

• 主な応用

  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.

1,1'-ビフェニル-2,3,3',4'-テトラカルボン酸2,3:3',4'-二無水物 上流と下流の製品情報

1,1'-ビフェニル-2,3,3',4'-テトラカルボン酸2,3:3',4'-二無水物 生産企業

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1,1'-ビフェニル-2,3,3',4'-テトラカルボン酸2,3:3',4'-二無水物 スペクトルデータ(IR1、IR2、MS)

36978-41-3, 1,1'-ビフェニル-2,3,3',4'-テトラカルボン酸2,3:3',4'-二無水物 キーワード