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    • 8. 发明授权
    • Polymers for use in electronic devices
    • US11964966B2
    • 2024-04-23
    • US17265916
    • 2019-08-07
    • DUPONT ELECTRONICS, INC.
    • Viacheslav V. Diev
    • C07D405/14C07D405/00C07D491/18C08G69/26C08G73/10
    • C07D405/14C07D405/00C07D491/18C08G69/26C08G73/1085
    • Disclosed is a polyanhydride having Formula I




      where A is

      In Formula I: R1 and R2 are the same or different at each occurrence and are F, CN, alkyl, fluoroalkyl, alkoxy, fluoroalkoxy, silyl, siloxy, unsubstituted or substituted hydrocarbon aryl, unsubstituted or substituted heteroaryl, or unsubstituted or substituted aryloxy; R3 and R4 are the same or different and are A3, A4, H, F, CN, alkyl, fluoroalkyl, alkoxy, fluoroalkoxy, silyl, siloxy, unsubstituted or substituted hydrocarbon aryl, unsubstituted or substituted heteroaryl, or unsubstituted or substituted aryloxy; R5 and R6 are the same or different and are H, F, CN, alkyl, fluoroalkyl, alkoxy, fluoroalkoxy, silyl, siloxy, unsubstituted or substituted hydrocarbon aryl, unsubstituted or substituted heteroaryl, and unsubstituted or substituted aryloxy; R8 is selected from the group consisting of alkyl, silyl, unsubstituted or substituted hydrocarbon aryl, or unsubstituted or substituted heteroaryl; c and d are the same or different and are an integer from 0 to the maximum available; m and n are the same or different and are 0 or 1; A1 to A4 are the same or different and have the formula




      single dashed lines between two rings indicate that the rings are joined by a single bond or fused together at any available position; L is a bond or a hydrocarbon aryl; and at least two A groups are present.