Unsymmetrical benzothtadiazole-based random copolymers

    公开(公告)号:US11639421B2

    公开(公告)日:2023-05-02

    申请号:US17238578

    申请日:2021-04-23

    Abstract: A random copolymer comprising the monomer units A and B. In this random copolymer A comprises and B comprises Additionally, R1 R2, R3 and R4 are side chains independently selected from the group consisting of: H, Cl, F, CN, alkyl, alkoxy, alkylthio, ester, ketone and aryl groups. X1 and X2 are different and at least one is a Cl and the other is selected from the group consisting of: H, F, CN, alkyl, alkoxy, ester, ketone, amide and aryl groups.

    Organic semiconducting polymers
    58.
    发明授权

    公开(公告)号:US11228000B2

    公开(公告)日:2022-01-18

    申请号:US17002964

    申请日:2020-08-26

    Abstract: A polymer comprising wherein Ar1 and Ar2 are optional and either the same or different and independently selected from an aryl group or an heteroaryl group. In this polymer, W is selected from the group consisting of: S, Se, O, and N-Q; and Q is selected from the group consisting of: a straight-chain or branched carbyl, silyl, or hydrocarbyl, a branched or cyclic alkyl with 1 to 30 atoms, a fused substituted aromatic ring, and a fused unsubstituted aromatic ring. Additionally, in the polymer, R1 is selected from the group consisting of: a straight-chain or branched carbyl, silyl, or hydrocarbyl, a branched or cyclic alkyl with 1 to 30 atoms, a fused substituted aromatic ring, and a fused unsubstituted aromatic ring and wherein x+y=1.

    Method of synthesis for organic semiconducting polymers

    公开(公告)号:US11158805B2

    公开(公告)日:2021-10-26

    申请号:US17002977

    申请日:2020-08-26

    Abstract: A method of forming a polymer, the method begins by combining 4,7-bis(5-bromo-4-alkylthiophen-2-yl)-5-chloro-6-fluorobenzo[c][1,2,5]thiadiazole, [4-alkyl-5-[5-(trimethylstannyl)thiophen-2-yl]thiophen-2-yl]trimethylstannane, (3,3′-difluoro-[2,2′-bithiophene]-5,5′-diyl)bis(trimethylstannane), Pd2dba3 and P(o-tol)3 to form the polymer: In this polymer R1 and R2 are independently selected from the group consisting of a straight-chain or branched carbyl, silyl, or hydrocarbyl, a branched or cyclic alkyl with 1 to 30 atoms, a fused substituted aromatic ring, and a fused unsubstituted aromatic ring; and the ratio of x is between 0.6 to 0.8 and y is between 0.2 and 0.4.

Patent Agency Ranking