Organic semiconductor materials and methods of preparing and use thereof

A polymeric compound comprising a polyalkylene backbone or a substituted polyalkylene backbone, wherein one or more repeating units of the polymeric compound comprise a pendant group having the formula L-Q, wherein:

• Q, at each occurrence, is independently a fused-ring tetracarboxylic imide;
• and
• L, at each occurrence, has the formula A-B-A′ or B-A-B′, wherein:
• A and A′ are independently a divalent C1-20 alkyl group, a divalent C1-20 haloalkyl group, or a covalent bond;
• and
• B and B′ are independently —O—, —S—, —C(O)—, —NRa—, —C(O)NRa—, —NRaC(O)—, —O—(CH2CH2O)p—, —SiRa2—, a C6-10 cycloalkyl group, a C6-14 aryl group, a 5-12 membered cycloheteroalkyl group, a 5-14 membered heteroaryl group, or a covalent bond, wherein:
• Ra is H, a C1-6 alkyl group, a C6-14 aryl group, or a —C1-6 alkyl-C6-14 aryl group;
• and
• p is an integer in the range of 1 to 20.

A copolymeric compound comprising a repeating unit having the formula:

• and at least one other repeating unit selected from an alkylene, a substituted alkylene, and a heteroalkylene, wherein:
• Q is a fused-ring tetracarboxylic imide;
• L has the formula A-B-A′ or B-A-B′,
• wherein:
• A and A′ are independently a divalent C1-20 alkyl group, a divalent C1-20 haloalkyl group, or a covalent bond;
• and
• B and B′ are independently —O—, —S—, —C(O)—, —NRa, —C(O)NRa—, —NRaC(O)—, —O—(CH2CH2O)p—, —SiRa2—, a C6-10 cycloalkyl group, a C6-14 aryl group, a 5-12 membered cycloheteroalkyl group, a 5-14 membered heteroaryl group, or a covalent bond,
• wherein:
• Ra is H, a C1-6 alkyl group, a C6-14 aryl group, or a —C1-6 alkyl-C6-14 aryl group;
• and
• p is an integer in the range of 1 to 20;
• and
• 0<x<1.