Abstract: A copolymer comprising 10-90 percent by weight of groups of Formula (I): and from 10-90 percent by weight of groups selected from Formulas (II), (III), and (IV): and mixtures thereof; wherein R1 is independently in each occurrence H, C1-C20 hydrocarbyl or C1-C20 hydrocarbyl containing one or more S, N, O, P or Si atoms, C4-C16 hydrocarbyl carbonyloxy, C4-C16 aryl(trialkylsiloxy) or both R1 may form with the 9-carbon on the fluorene ring a C5-C20 cycloaliphatic structure or a C4-C20 cycloaliphatic structure containing one or more heteroatoms of S, N, or O; R2 is independently in each occurrence C1-C20 hydrocarbyl, C1-C20 hydrocarbyloxy, C1-C20 thioether, C1-C20 hydrocarbylcarbonyloxy or cyano; R3 is independently in each occurrence carboxyl, C1-C20 alkyl, C1-C20 alkoxy or a group of the formula —CO2R4 wherein R4 is a C1-C20 alkyl; and a and b are independently in each occurrence an integer from 0 to 3.

Abstract: An organic block polymer useful in an electroluminescent polymer device (or in a polymer field effect transistor) that includes an emissive polymer block that is consistently conjugated along the backbone of the emissive polymer block (e.g., a copolymer of 2,7-linked 9,9 dioctyl fluorene and 4,7-linked 2,1,3 benxothiadiazole); and a positive charge carrier polymer block that is consistently conjugated along the backbone of the positive charge carrier polymer block (e.g., a copolymer of 2,7-linked 9,9 dioctyl fluorene and 4N, 4N′-linked N,N′-di(3-carboxomethoxyphenyl)benzidine) for transporting positive charge carriers to the emissive polymer block so that the positive charge carriers can combine with negative charge carriers to generate light.

Abstract: A compound of the formula: and compounds of the formulas: wherein R1 is independently in each occurrence C1-20 hydrocarbyl or C1-20 hydrocarbyl containing one or more S, N, O, P or Si atoms, C4-16 hydrocarbyl carbonyloxy, C4-16 aryl(trialkylsiloxy) or both R1 may form with the 9-carbon on the fluorene ring a C5-20 ring structure or a C4-20 ring structure containing one or more heteroatoms of S, N or O; R2 is independently in each occurrence C1-20 hydrocarbyl, C120 hydrocarbyloxy, C1-20 thioether, C1-20 hydrocarbylcarbonyloxy or cyano; R3 is independently in each occurrence C1-20 hydrocarbyl or C1-20 hydrocarbyl substituted with di(C1-20 alkyl)amino, C1-20 hydrocarbyloxy or C1-20 hydrocarbyl or tri(C1-10 alkyl)siloxy; a is independently in each occurrence 0 or 1; X is independently in each occurrence a halogen moiety; and Z is independently in each occurrence —B(OH)2, —B(OR4)2 or  wherein R4 is independently in each occurrence a C1-10

Abstract: A compound of the formula: and compounds of the formulas: wherein R1 is independently in each occurrence C1-20 hydrocarbyl or C1-20 hydrocarbyl containing one or more S, N, O, P or Si atoms, C4-16 hydrocarbyl carbonyloxy, C4-16 aryl(trialkylsiloxy) or both R1 may form with the 9-carbon on the fluorene ring a C5-20 ring structure or a C4-20 ring structure containing one or more heteroatoms of S, N or O; R2 is independently in each occurrence C1-20 hydrocarbyl, C1-20 hydrocarbyloxy, C1-20 thioether, C1-20 hydrocarbylcarbonyloxy or cyano; R3 is independently in each occurrence C1-20 hydrocarbyl or C1-20 hydrocarbyl substituted with di(C1-20 alkyl)amino, C1-20 hydrocarbyloxy or C1-20 hydrocarbyl or tri(C1-10 alkyl)siloxy; a is independently in each occurrence 0 or 1; X is independently in each occurrence a halogen moiety; and Z is independently in each occurrence —B(OH)2, —B(OR4)2 or  wherein R4 is independently in each occurrence a C1-

Abstract: The invention is an optoelectronic device comprising a transparent polymeric substrate bearing on one surface thereof a transparent polymerized organosilicon protective layer, a first electrode over the polymerized protective layer, an optoelectrically active film comprising an electroactive material, said film having a first side, which is in contact with the transparent electrode and a second side in contact with a second electrode, wherein said first electrode is characterized in that it allows light to pass to or from the optoelectrically active film. Preferably, the device further comprises additional protective packaging over the second electrode.

Abstract: The device of this invention comprises a optoelectronic element, a cover, and an adhesive. The optoelectronic element comprises a substrate bearing an anode, a film comprising an optoelectronic material, and a cathode. The cover comprises a lid and a raised rim which is recessed from the outer edge of the lid. The cover contacts the element so that the film comprising the optoelectronic material is located between the substrate and the lid, and within the region defined by the raised rim. An adhesive, located in a channel defined by the bottom surface of the lid from the outer edge to the rim, the rim, and the top surface of the optoelectronic element outside of the region defined by the rim, serves to attach the cover to the optoelectronic element.

Abstract: A compound of the formula: and compounds of the formulas: wherein R1 is independently in each occurrence C1-20 hydrocarbyl or C1-20 hydrocarbyl containing one or more S, N, O, P or Si atoms, C4-16 hydrocarbyl carbonyloxy, C14-16 aryl(trialkylsiloxy) or both R1 may form with the 9-carbon on the fluorene ring a C5-20 ring structure or a C4-20 ring structure containing one or more heteroatoms of S, N or O; R2 is independently in each occurrence C1-20 hydrocarbyl, C1-20 hydrocarbyloxy, C1-20 thioether, C1-20 hydrocarbylcarbonyloxy or cyano; R3 is independently in each occurrence C1-20 hydrocarbyl or C1-20 hydrocarbyl substituted with di(C1-20 alkyl)amino, C1-20 hydrocarbyloxy or C1-20 hydrocarbyl or tri(C1-10 alkyl)siloxy; a is independently in each occurrence 0 or 1; X is independently in each occurrence a halogen moiety; and Z is independently in each occurrence —B(OH)2, —B(OR4)2 or  wherein R4 is independently in each occurrence a C1-1

Abstract: This invention relates to: (a) fluorene copolymers comprising at least 10% (by residual monomeric units) of 9-substituted and/or 9,9-disubstituted fluorene moieties and at least two other monomeric units containing delocalized p-electrons, (b) polymer blends comprising at least 10 weight % of a copolymer specified in (a), and (c) electronic devices (such as polymer light emitting diodes) containing one or more films derived from these copolymers.

Abstract: A copolymer comprising 10-90 percent by weight of groups of Formula (I): and from 10-90 percent by weight of groups selected from Formulas (II), (III), and (IV): and mixtures thereof; wherein R1 is independently in each occurrence H, C1-C20 hydrocarbyl or C1-C20 hydrocarbyl containing one or more S, N, O, P or Si atoms, C4-C16 hydrocarbyl carbonyloxy, C4-C16 aryl(trialkylsiloxy) or both R1 may form with the 9-carbon on the fluorene ring a C5-C20 cycloaliphatic structure or a C4-C20 cycloaliphatic structure containing one or more heteroatoms of S, N, or O; R2 is independently in each occurrence C1-C20 hydrocarbyl, C1-C20 hydrocarbyloxy, C1-C20 thioether, C1-C20 hydrocarbylcarbonyloxy or cyano; R3 is independently in each occurrence carboxyl, C1-C20 alkyl, C1-C20 alkoxy or a group of the formula —CO2R4 wherein R4 is a C1-C20 alkyl; and a and b are independently in each occurrence an integer from 0 to 3.

Abstract: A copolymer comprising 10-90 percent by weight of groups of Formula (I): 1

Abstract: A compound of the formula: and compound of the formulas: wherein R1 is independently in each occurrence C1-20 hydrocarbyl or C1-20 hydrocarbyl containing one or more S, N, O, P or Si atoms, C4-16 hydrocarbyl carbonyloxy, C4-16 aryl(trialkylsiloxy) or both R1 may form with the 9-carbon on the fluorene ring a C5-20 ring structure or a C4-20 ring structure containing one or more heteroatoms of S, N or O; R2 is independently in each occurrence C1-20 hydrocarbyl, C1-20 hydrocarbyloxy, C1-20 thioether, C1-20 hydrocarbylcarbonyloxy or cyano; R3 is independently in each occurrence C1-20 hydrocarbyl or C1-20 hydrocarbyl substituted with di(C1-20 alkyl)amino, C1-20 hydrocarbyloxy or C1-20 hydrocarbyl or tri(C1-10 alkyl)siloxy; a is independently in each occurrence 0 or 1; X is independently in each occurrence a halogen moiety; and Z is independently in each occurrence —B(OH)2, —B(OR4)2 or wherein R4 is independently in each occurrence a C1-10 alkyl

Abstract: A field effect transistor is made of five parts. The first part is an insulator layer, the insulator layer being an electrical insulator such as silica, the insulator layer having a first side and a second side. The second part is a gate, the gate being an electrical conductor such as silver, the gate being positioned on the first side of the insulator layer. The third part is a semiconductor layer, the semiconductor layer including a polymer, at least ten weight percent of the monomer units of the polymer being a 9-substituted fluorene unit and/or a 9,9-substituted fluorene unit, the semiconductor layer having a first side, a second side, a first end and a second end, the second side of the semiconductor layer being on the second side of the insulator layer. The fourth part is a source, the source being an electrical conductor such as silver, the source being in electrical contact with the first end of the semiconductor layer.

Abstract: A compound of the formula: and compounds of the formulas: wherein R1 is independently in each occurrence C1-20 hydrocarbyl or C1-20 hydrocarbyl containing one or more S, N, O, P or Si atoms, C4-16 hydrocarbyl carbonyloxy, C4-16 aryl(trialkylsiloxy) or both R1 may form with the 9-carbon on the fluorene ring a C5-20 ring structure or a C4-20 ring structure containing one or more heteroatoms of S, N or O; R2 is independently in each occurrence C1-20 hydrocarbyl, C1-20 hydrocarbyloxy, C1-20 thioether, C1-20 hydrocarbylcarbonyloxy or cyano; R3 is independently in each occurrence C1-20 hydrocarbyl or C1-20 hydrocarbyl substituted with di(C1-20 alkyl)amino, C1-20 hydrocarbyloxy or C1-20 hydrocarbyl or tri(C1-10 alkyl)siloxy; a is independently in each occurrence 0 or 1; X is independently in each occurrence a halogen moiety; and Z is independently in each occurrence —B(OH)2, —B(OR4)2 or wherein R4 is independently in each occurrence a C1-10 alkyl

Abstract: An in-line reversal electron, high-current ionizer capable of focusing a beam of electrons to a reversal region and executing a reversal of said electrons, such that the electrons possess zero kinetic energy at the point of reversal, may be used to produce both negative and positive ions. A sample gas is introduced at the point of electron reversal for low energy electron-(sample gas) molecule attachment with high efficiency. The attachment process produces negative ions from the sample gas, which includes species present in trace (minute) amounts. These ions are extracted efficiently and directed to a mass analyzer where they may be detected and identified. The generation and detection of positive ions is accomplished in a similar fashion with minimal adjustment to potentials applied to the apparatus.

Abstract: A cryogenic sample stage for an ion mass spectrometry system. A mounting is adjustable relative to the ion microscope lens system to maintain alignment with the immersion lens. Sample temperatures below -150.degree. C. are maintained by circulating cooling fluid to the mounting section thereby allowing a direct analysis of frozen-hydrated biological samples.