申请人:Alliance for Sustainable Energy, LLC
公开号:US20200317855A1
公开(公告)日:2020-10-08
The present disclosure relates to a composition that includes a repeat unit defined by
where each of R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, R
7
, and R
8
includes at least one of a hydrogen atom, a fluorine atom, and/or a first hydrocarbon chain having between 1 and 20 carbon atoms, inclusively, where each of A
1
, A
2
, A
3
and A
4
are either a carbon atom or a nitrogen atom, when A
1
is a nitrogen atom, A
2
is a carbon atom, when A
2
is a nitrogen atom, A
1
is a carbon atom, when A
3
is a nitrogen atom, A
4
is a carbon atom, when A
4
is a nitrogen atom, A
3
is a carbon atom, either A
1
or A
2
form a covalent bond, x, with a carbon atom, a, either A
3
or A
4
form a covalent bond, y, with a carbon atom, b, L is a linker group that includes an aromatic ring, and n is between 1 and 20, inclusively.
本公开涉及一种组合物,其包括由重复单元定义的,其中R1、R2、R3、R4、R5、R6、R7和R8中的每一个至少包括一个氢原子、一个氟原子和/或一个具有1至20个碳原子的第一碳氢链,其中A1、A2、A3和A4中的每一个均为碳原子或氮原子,当A1为氮原子时,A2为碳原子,当A2为氮原子时,A1为碳原子,当A3为氮原子时,A4为碳原子,当A4为氮原子时,A3为碳原子,A1或A2中的任意一个与碳原子a形成共价键x,A3或A4中的任意一个与碳原子b形成共价键y,L为包括芳香环的连接基团,n在1至20之间,包括1和20。