PRODUCTION METHOD OF OLIGOIMIDE WITH TERMINAL MALEIMIDE

• Main Authors: MORIKITA TATSUYA, ECHIGO YOSHIAKI, YOSHIDA TAKESHI, SHIGETA AKIRA, YAMADA HIROKI
• Format: Patent
• Language: English; Japanese
• Published: 09.07.2020
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; HETEROCYCLIC COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

To provide a simple and economical production method of oligoimide with terminal maleimide.SOLUTION: A production method of oligoimide with terminal maleimide comprises: reacting 1 mol of an aliphatic diamine with 0.5 mol or more and 0.9 mol or less of an aromatic tetracarboxylic dianhydride as well as maleic anhydride to produce oligoamic acid with terminal maleamic acid; and imidizing the terminal amic acid and the amic acid of the main chain in a lump using an acid catalyst.SELECTED DRAWING: Figure 1 【課題】簡便かつ経済的な末端マレイミ化オリゴイミドの製造方法を提供する。【解決手段】アミド系溶媒を含む溶媒中で、脂肪族ジアミンと、ジアミン１モルに対し、０．５モル以上、０．９モル以下の芳香族テトラカルボン酸二無水物と、無水マレイン酸と、を反応させて、末端をマレアミック酸としたオリゴアミック酸を生成させた後、酸触媒を用い、末端のアミック酸と、主鎖のアミック酸とを一括してイミド化すること特徴とする末端マレイミド化オリゴイミドの製造方法。【選択図】図１