POLYIMIDES WITH PENDENT ETHYNYL GROUPS

POLYMER

卷:34

Article

JENSEN, BJ ; HERGENROTHER, PM ; NWOKOGU, G

关键词: POLYIMIDE;    DIAMINE;    PENDENT GROUPS;    SYNTHESIS;    ETHYNYL GROUPS;    CROSS-LINKING;    COPOLYMERS;    CHARACTERIZATION;    FILMS;   

DOI  :  10.1016/0032-3861(93)90562-O

来源: Elsevier

【 摘 要 】

Three novel diamines containing pendent ethynyl, hexynyl and phenylethynyl groups were synthesized and used to prepare polymers and copolymers. When heated to 250-350-degrees-C, the ethynyl groups react to form crosslinks. After curing, the homopolymers were brittle owing to the high crosslink density. Copolymers prepared using 10 mol% ethynyl-containing diamine and 90 mol% of diamines with no ethynyl groups were relatively tough, forming creasible films. After a thermal cure, the copolymers became insoluble and exhibited high T(g) values and good thin film properties.

【 授权许可】

Free