| 摘要 |
PROBLEM TO BE SOLVED: To provide an alternative polymer suitable for applications as a semiconductor materials and photovoltaic materials.SOLUTION: A polymer contains a polymer chain of formula (I) or (II). In formula (I), 'a' to d and n are integers; 'a' is 0-3; b is 1-5; c is 1-3; d is 1-5; n is 2-5,000; Rand Rare side chains; Rand Rare independently H or a side chain; and for a=0, Rand Rare side chains. In formula (II), 'a' to e and n are integers; 'a' is 1-3; b and c are independently 0 or 1; d and e are independently 1 or 2; n is 2-5,000; Rand Rare side chains other than -COO alkyl; and X, Xand Xare independently O, S or Se. |
