4,4'-Carbonyldiphthalic anhydride
2421-28-5O=C(c1ccc2c(c1)C(=O)OC2=O)c1ccc2c(c1)C(=O)OC2=OVQVIHDPBMFABCQ-UHFFFAOYSA-N2421-28-5DTXSID3029233CHEMBL3183537Dry Powder
Light yellow powder; [Alfa Aesar MSDS]
安全情報は参考情報です。供給元の安全データシート(SDS)、適用法令、専門家による評価に代わるものではありません。
Warning
H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]
P261, P264+P265, P271, P280, P304+P340, P305+P351+P338, P319, P337+P317, P403+P233, P405, and P501 (click each P-code to see the statement)
Warning
H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
P261, P264+P265, P271, P280, P304+P340, P305+P351+P338, P319, P337+P317, P403+P233, P405, and P501 (click each P-code to see the statement)
Chemical: 1,3-Isobenzofurandione, 5,5'-carbonylbis-
Regulation (EC) No 1935/2004 (amended)
1,3-Isobenzofurandione, 5,5'-carbonylbis- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 1,3-Isobenzofurandione, 5,5'-carbonylbis- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
REACH registered substance: Benzophenone-3,3':4,4'-tetracarboxylic dianhydride (EC: 219-348-1)
3,3',4,4'-Benzophenonetetracarboxylic dianhydride: Does not have an individual approval but may be used under an appropriate group standard
Eye Irrit. 2 (100%)
Eye irritation - category 2
STOT SE 3
12 [mg/m3]
130 [mg/m3]
790 [mg/m3]
A curing agent for epoxy resins; [ChemFinder]
Plastic Composites Manufacturing [Category: Industry]
All Other Basic Organic Chemical Manufacturing
1,3-Isobenzofurandione, 5,5'-carbonylbis-: ACTIVE
用途高機能性ポリマー用原料モノマー、熱変形温度向上用エポキシ樹脂架橋硬化剤。アルキド樹脂、ポリエステル、ポリ(イミド-イミダゾール)などの耐熱性樹脂の原料、耐熱可塑剤原料
使用BTDA is important monomer of polyimide, and used for production of polyimide material.
一般的な説明Benzophenone-3,3′,4,4′-tetracarboxylic acid is formed by hydrolysis, it can be converted to the dianhydride by treating with Ac2O (molar ratio 4 to 1 of acid).The dianhydride is used to synthesize polyimides, which are highly flexible in nature due to the presence of keto and carbonyl groups in the dianhydride molecule. The keto and carbonyl groups subsequently increase the spacing between the imide rings enhancing the solubility and processibility.
純化方法The main impurity is the free acid formed by hydrolysis (check for OH bands in the IR). This can be converted to the dianhydride by treating with Ac2O (molar ratio of 4 to 1 of acid), heating at 110-120o for 1.5 to 2hours, cooling to 0—5o and collecting the dianhydride. This is then dissolved in hot dioxane or Me2CO, filtered and cooled to 10—15o. The moisture sensitive solid is collected and dried at 120—130o in vacuo. It has been sublimed at high vacuum. [Faberov et al. J Org Chem USSR 4 153 (English translation) 1968.]
読み込み中…
化学的特性white crystall powder