Abstract:
Nitrogen-containing fused ring compound having at least one structural unit selected from the group consisting of a structural unit represented by the formula (1-1) and a structural unit represented by the formula (1-2).
Abstract:
An object of the present invention is to provide a polymer having a low LUMO, a high charge transport property, and further high solubility in a solvent. The present invention provides a polymer having a repeating unit represented by the formula (I): wherein Ar0 means an aromatic ring that may have a substituent or substituents, or a heterocycle that may have a substituent or substituents, and X1 and X2 are the same or different and each mean an oxygen atom or a sulfur atom.
Abstract:
An object of the invention is to provide a fluorine-containing polymer that is superior in both stability against doping of oxygen and solubility in an organic solvent. The invention provides a fluorine-containing polymer including a structure represented by formula (I) in a repeating unit. wherein R1 and R2 are the same or different and each mean a hydrogen atom, a halogen atom, or a monovalent group.
Abstract:
A conjugated compound having a group represented by formula (I) and/or formula (II). [In the formulas, Ar represents an optionally substituted trivalent aromatic hydrocarbon or optionally substituted trivalent heterocyclic group, and A represents hydrogen, a halogen atom or a monovalent group. When multiple A groups are present they may be the same or different, and at least one A represents an electron-withdrawing group. Ar′ represents an optionally substituted C6 or greater divalent aromatic hydrocarbon or optionally substituted C4 or greater divalent heterocyclic group, and R1 and R2 are the same or different and each represents hydrogen, a halogen atom or a monovalent group, while A′ represents hydrogen, a halogen atom or a monovalent group. When multiple A′ groups are present they may be the same or different, and at least one A′ represents an electron-withdrawing group.]
Abstract:
A condensation compound of a fluorinated cyclopentane ring and an aromatic ring, which is useful, for example, for electronic materials, and a process for producing the same are provided. For instance, according to Scheme 1 below, a compound (68) containing a condensed structure formed of a hexafluorocyclopentane ring and an aromatic ring is synthesized. The aromatic ring is not limited to a thiophene ring but can be any ring and any substituent can be used. Thus a compound containing a condensed ring structure formed of a hexafluorocyclopentane ring and an aromatic ring, particularly, for instance, a thiophene ring, which was impossible to produce conventionally, can be produced easily with high yield. The compound of the present invention is particularly suitable to be applied to, for example, electronic materials or semiconductors. When it is polymerized and thereby the π-electronic conjugation is extended, it also is expected to be applied to, for example, n-type organic semiconductors and molecular wires that are indispensable for developing molecular electronics elements.
Abstract:
A polymer comprising a repeating unit represented by the following general formula (I). (In the formula, Ar1 represents a divalent aromatic hydrocarbon or divalent heterocyclic group, X1, Y1, X2 and Y2 each independently represent a fluorine atom or alkylthio group, and X1 and Y1 and X2 and Y2 may together form a carbonyl or thiocarbonyl group with their bonding carbon atom.)
Abstract:
According to the first invention group there are provided conjugated compounds having two or more groups represented by the following formula (I) or the following formula (II): wherein one of Ar and Ar′ represents a C6 or greater divalent aromatic hydrocarbon group and the other represents a C4 or greater divalent heterocyclic group, wherein the groups each may have a substituent, with the proviso that the groups as a whole contain no fluorine atoms, R1 and R2 each independently represent a hydrogen atom, a halogen atom or a monovalent group, and Ar″ represents a trivalent aromatic hydrocarbon or trivalent heterocyclic group; when the conjugated compound has two or more groups represented by formula (I), the portion excluding these groups contain no fluorine atoms.According to the second group of the present invention there are provided nitrogen-containing fused-ring compounds represented by the following formula (α-I): in formula (α-I), R21 and R22 each independently represent a hydrogen atom, a halogen atom or an optionally substituted monovalent group, and Z21 and Z22 each independently represent any one of the groups represented by the following formulas (α-i)-(α-ix); wherein R23, R24, R25 and R26 each independently represent a hydrogen atom, a halogen atom or a monovalent group, and R23 and R24 may bond together to form a ring, the left side and the right side of the group represented by formula (α-viii) may be interchanged.
Abstract:
Whiskers having a diameter of 0.1-10 .mu.m and a length of 5-200 .mu.m are pelletized and granulated into agglomerates which have a size of 0.1-10 mm and a bulk density of 0.2-1.0 kg/liter.To pelletize, powders of whiskers are moistened with water while mixing to form primary aggregates. Then, the powders and the primary aggregates are subjected to a rolling movement to cause the primary aggregates to grow into secondary aggregates having desired size distribution. Finally, the secondary aggregates are dried to obtain pelletized or granulated agglomerates of whiskers.Handling of whiskers is facilitated because the agglomerates are less bulky and less likely to fly up in the air. When blended into molding materials for fiber reinforcement, however, the agglomerates are readily disintegrated back into separated individual fibers to provide homogeneous dispersion.
Abstract:
It is an object of the present invention to provide a nitrogen-containing condensed ring compound, which can be used as an organic n-type semiconductor having an excellent electron transport property and which is also excellent in terms of solubility in an organic solvent. The nitrogen-containing condensed ring compound of the present invention has a structural unit represented by the following formula (1-1) or formula (1-2): wherein Ar1 represents an aromatic ring; one of Y1 and Y2 represents a single bond, and the other represents —C(R11)(R12)— or —C(═X1)—; one of Y3 and Y4 represents a single bond, and the other represents —C(R21)(R22)— or —C(═X2)—, and one of Y1 to Y4 represents —C(R11)(R12)— or —C(R21)(R22)—; at least one of W1 and W2 represents —N═; and Z1 and Z2 each represent any one of the groups represented by the formula (i) to the formula (ix).
Abstract:
According to the first invention group there are provided conjugated compounds having two or more groups represented by the following formula (I) or the following formula (II): wherein one of Ar and Ar′ represents a C6 or greater divalent aromatic hydrocarbon group and the other represents a C4 or greater divalent heterocyclic group, wherein the groups each may have a substituent, with the proviso that the groups as a whole contain no fluorine atoms, R1 and R2 each independently represent a hydrogen atom, a halogen atom or a monovalent group, and Ar″ represents a trivalent aromatic hydrocarbon or trivalent heterocyclic group; when the conjugated compound has two or more groups represented by formula (I), the portion excluding these groups contain no fluorine atoms. According to the second group of the present invention there are provided nitrogen-containing fused-ring compounds represented by the following formula (α-I): in formula (α-I), R21 and R22 each independently represent a hydrogen atom, a halogen atom or an optionally substituted monovalent group, and Z21 and Z22 each independently represent any one of the groups represented by the following formulas (α-i)-(α-ix); wherein R23, R24, R25 and R26 each independently represent a hydrogen atom, a halogen atom or a monovalent group, and R23 and R24 may bond together to form a ring, the left side and the right side of the group represented by formula (α-viii) may be interchanged.