Abstract: Provided is a mixture which can be subjected to a Diels-Alder reaction, comprising polymer (I) and polymer (II), wherein the structures of the polymer (I) and the polymer (II) are as shown in (I), wherein x1, y1, x2, y2, z1 and z2 are percentage molar contents; said x1 is >0, x2 is >0, y1 is >0, y2 is >0, z1 is ?0, and z2 is ?0; x1+y1+z1=1, and x2+y2+z2=1; Ar1, Ar2, Ar2-1, Ar3, Ar4 and Ar4-1 are each independently selected from: an aryl, or heteroaryl group containing 5-40 ring atoms; R1 and R2 are each independently a linking group; D is a conjugated diene functional group, and A is a dienophilic functional group; and n1 is greater than 0, and n2 is greater than 0. The mixture for a Diels-Alder reaction has a very good optical performance.

Abstract: The present disclosure provides a polymer represented by the following general formula (I): wherein x and y each represent a repeating unit, and both x and y are positive integers; formula and formula are each independently selected from the group consisting of an aryl containing 5-40 ring atoms and a heteroaryl containing 5-40 ring atoms; formula is a linking group, and formula is selected from the group consisting of alkyl, alkoxy, amino, alkenyl, alkynyl, aralkyl, and heteroalkyl; and R2, R3 and R4 are each independently selected from the group consisting of H, D, F, CN, alkyl, fluoroalkyl, aryl, heteroaryl, amino, Si, germyl, alkoxy, aryloxy, fluoroalkoxy, siloxane, siloxy, deuterated alkyl, deuterated fluoroalkyl, deuterated aryl, deuterated heteroaryl, deuterated amino, deuterated silyl, deuterated germyl, deuterated alkoxy, deuterated aryloxy, deuterated fluoroalkoxy, deuterated siloxane, and deuterated siloxy.

Abstract: The present disclosure provides a polymer represented by the following general formula (I): wherein x and y each represent a repeating unit, and both x and y are positive integers; formula and formula are each independently selected from the group consisting of an aryl containing 5-40 ring atoms and a heteroaryl containing 5-40 ring atoms; formula is a linking group, and formula is selected from the group consisting of alkyl, alkoxy, amino, alkenyl, alkynyl, aralkyl, and heteroalkyl; and R2, R3 and R4 are each independently selected from the group consisting of H, D, F, CN, alkyl, fluoroalkyl, aryl, heteroaryl, amino, Si, germyl, alkoxy, aryloxy, fluoroalkoxy, siloxane, siloxy, deuterated alkyl, deuterated fluoroalkyl, deuterated aryl, deuterated heteroaryl, deuterated amino, deuterated silyl, deuterated germyl, deuterated alkoxy, deuterated aryloxy, deuterated fluoroalkoxy, deuterated siloxane, and deuterated siloxy.

Abstract: Provided is a mixture which can be subjected to a Diels-Alder reaction, comprising polymer (I) and polymer (II), wherein the structures of the polymer (I) and the polymer (II) are as shown in (I), wherein x1, y1, x2, y2, z1 and z2 are percentage molar contents; said x1 is >0, x2 is >0, y1 is >0, y2 is >0, z1 is ?0, and z2 is ?0; x1+y1+z1, and x2+y2+z2=1; Ar1, Ar2, Ar2-1, Ar3, Ar4 and Ar4-1 are each independently selected from: an aryl, or heteroaryl group containing 5-40 ring atoms; R1 and R2 are each independently a linking group; D is a conjugated diene functional group, and A is a dienophilic functional group; and n1 is greater than 0, and n2 is greater than 0. The mixture for a Diels-Alder reaction has a very good optical performance.

Abstract: Provided are a conjugated polymer containing ethynyl crosslinking group, mixture, formulation, organic electronic device containing the same and application thereof. The conjugated polymer material has a conjugated main chain structure and an ethynyl crosslinking group as a functional side chain. The conjugated polymer material produces an insoluble and unmeltable crosslinked interpenetrating network polymer film under heating, has excellent solvent-resistance, and is suitable for manufacturing a complex multi-layer organic electronic device. The conjugated polymer can be applied in optoelectronic devices such as an organic field effect transistor, an organic light emitting diode (OLED), a polymer solar cell, a perovskite solar cell, etc, and improves device performance.

Abstract: Provided are a conjugated polymer containing ethynyl crosslinking group, mixture, formulation, organic electronic device containing the same and application thereof. The conjugated polymer material has a conjugated main chain structure and an ethynyl crosslinking group as a functional side chain. The conjugated polymer material produces an insoluble and unmeltable crosslinked interpenetrating network polymer film under heating, has excellent solvent-resistance, and is suitable for manufacturing a complex multi-layer organic electronic device. The conjugated polymer can be applied in optoelectronic devices such as an organic field effect transistor, an organic light emitting diode (OLED), a polymer solar cell, a perovskite solar cell, etc, and improves device performance.

Abstract: An electric motor having a circuit for reducing electromagnetic interference (EMI) includes a field stack such as a stator, an armature including a shaft, a commutator mounted on the shaft, and an armature core electrically connected to the commutator, whereby the armature core is rotatably mounted within the field stack. The electric motor includes a brush assembly adapted to deliver electrical power to the commutator. The circuit includes a delta capacitor network and a conductive lead electrically interconnecting the delta capacitor network and the brush assembly. In one embodiment, the circuit includes motor field windings or coils, and a power source electrically interconnectable with the delta capacitor network and the motor field windings. In one embodiment, the motor is a universal motor.

Abstract: An electric motor having a circuit for reducing electromagnetic interference (EMI) includes a field stack such as a stator, an armature including a shaft, a commutator mounted on the shaft, and an armature core electrically connected to the commutator, whereby the armature core is rotatably mounted within the field stack. The electric motor includes a brush assembly adapted to deliver electrical power to the commutator. The circuit includes a delta capacitor network and a conductive lead electrically interconnecting the delta capacitor network and the brush assembly. In one embodiment, the circuit includes motor field windings or coils, and a power source electrically interconnectable with the delta capacitor network and the motor field windings. In one embodiment, the motor is a universal motor.