申请人:——
公开号:US20040127666A1
公开(公告)日:2004-07-01
A composition comprising a polymer comprising a repeat unit of Formula I.:
1
wherein R
1
is independently in each occurrence H, C
1-40
hydrocarbyl or C
3-40
hydrocarbyl containing one or more S, N, O, P or Si atoms, or both of R
1
together with the 9-carbon on the fluorene, may form a C
5-20
ring structure which may contain one or more S, N, or O atoms;
R2 is independently in each occurrence C
1-20
hydrocarbyl, C
1-20
hydrocarbyloxy, C
1-20
thioether, C
1-20
hydrocarbyloxycarbonyl, C
1-20
hydrocarbylcarbonyloxy, or cyano;
a is independently in each occurrence, 0 or 1;
X is O, S, SO
2
, C(R
3
)
2
or N—R
3
wherein R
3
is aryl or substituted aryl of C
6
to C
40
, aralkyl of C
6
to C
24
, or alkyl of C
1
to C
24
. Preferably R
3
is aryl of C
6
to C
24
and more preferably R
3
is an alkylated aryl group of C
6
to C
24
;
Ar is an aryl or heteroaryl group of C
6
to C
40
or substituted aryl or heteroaryl group of C
6
to C
40
, preferably C
6
-C
24
, and most preferably C
6
-C
14
. Y is a conjugated moiety that can vary in each occurrence of the repeat unit.
一种组合物,包括聚合物,其包含化学式I中的重复单元:1其中R1在每次出现时独立地为H、C1-40烃基或含有一个或多个S、N、O、P或Si原子的C3-40烃基,或R1与芴上的第9个碳共同形成一个C5-20环结构,该环结构可以包含一个或多个S、N或O原子;R2在每次出现时独立地为C1-20烃基、C1-20烃氧基、C1-20硫醚、C1-20烃氧羰基、C1-20烃基羰基氧基或氰基;a在每次出现时独立地为0或1;X为O、S、SO2、C(R3)2或N—R3,其中R3为C6到C40的芳基或取代芳基、C6到C24的芳基烷基或C1到C24的烷基。优选的是,R3为C6到C24的芳基,更优选的是R3为C6到C24的烷基化芳基基团;Ar为C6到C40的芳基或杂环芳基基团或取代的C6到C40的芳基或杂环芳基基团,优选为C6-C24,最优选为C6-C14。Y为共轭基团,在重复单元的每次出现中可以变化。