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    • 83. 发明授权
    • 가교 폴리이미드와 전자재료로서의 그의 응용
    • 가교폴리이미드와전자재료로서의그의응용
    • KR100655176B1
    • 2006-12-08
    • KR1020050073813
    • 2005-08-11
    • 한양대학교 산학협력단
    • 이영무이창현박호범
    • C08G73/10C08J5/22
    • Provided are a crosslinked polyimide which is improved in thermal and chemical stability and physical strength and has a high dielectric constant, and a crosslinked polyimide membrane. The crosslinked polyimide comprises a repeating unit represented by the formula I, wherein A1 and A2 are identical or different each other and are an aromatic radical comprising C6-C24 aromatic ring and containing 4 covalent bonds, or a C5-C24 hetero ring having at least one nitrogen, oxygen or sulfur atom as a ring member and containing 4 covalent bonds; a crosslinking agent B is a C2-C50 aliphatic radical having two covalent bonds and containing at least two functional groups selected from -O-, -CO- and -SO2-; x is 2-20; and y is 2-30.
    • 本发明提供热和化学稳定性和物理强度提高且介电常数高的交联聚酰亚胺和交联聚酰亚胺膜。 交联的聚酰亚胺包含由式I表示的重复单元,其中A 1和A 2彼此相同或不同,并且是包含C 6 -C 24芳族环且包含4个共价键的芳族基团或具有至少1个碳原子的C 5 -C 24杂环 一个氮,氧或硫原子作为环成员并含有4个共价键; 交联剂B是具有两个共价键且含有至少两个选自-O - , - CO-和-SO 2 - 的官能团的C 2 -C 50脂族基团; x是2-20; y是2-30。