95 results about "Fluorenylidene" patented technology

An alkylene and/or silylene bridged binuclear metallocene catalyst for styrene polymerization is represented by the following formula (I): where M1 and M2 are the same or different transition metal of Group IVb of the Periodic Table; Cp1 and Cp2 are the same or different cyclopentadienyl; alkyl, alkoxy, silyl or halogen substituted cyclopentadienyl; indenyl; alkyl, alkoxy, silyl or halogen substituted indenyl; fluorenyl; or alkyl, alkoxy, silyl or halogen substituted fluorenyl, which is capable of pi -electron, eta 5-bonding with M1 or M2; each of E1, E2 and E3, independently of one another, is a carbon atom or a silicon atom; m, p and q are integers of 0 to 15 and m+p+q>/=1; each of R1, R2, R3, R4, R5 and R6, independently of one another, is a hydrogen, an alkyl, an aryl, an alkoxy or a halogen; X is a hydrogen, an alkyl, an alkoxy or a halogen; and n is 3. M1 and M2 may also be in cardin form by mixture of (I) with a compound which abstructs an X gray from each metal atom and substitution then with non-coordinating anions.

A polyethersulfone composition is disclosed which comprises structural units derived from a monomer mixture comprising fluorenylidene bisphenol-A and at least 50 mole percent of 4,4′-biphenol based on total moles of diphenolic monomers, wherein the polyethersulfone has a minimum glass transition temperature of 235° C. and a notched Izod impact value of 1 ft-lb/in. as measured by ASTM D256.

Provided is a catalyst for the polymerisation of olefins of general formula: R''(C4R'mC5C4R'n)XMeQ wherein X is an hetero-atom ligand with one or two lone pair electrons selected from the elements of Group VA or VIA which can be substituted or non-substituted: (C4Rm'C5C4Rn') is a symmetrically substituted, 3,6-substituted fluorenyl; R' is hydrogen or hydrocarbyl radical having from 1-20 carbon atoms, a halogen, an alkoxy, an alkoxy alkyl or an alkylamino or alkylsilylo radical, each R' may be the same or different and m and n independently are 1, 2 3 or 4, with the proviso that the bilateral symmetry is maintained; R'' is a structural bridge between X and the (C4R'mC5C4R'n) ring to impart stereorigidity; Q is a hydrocarbyl radical having 1-20 carbon atoms or is a halogen; Me is a Group IIB, IVB, VB, or VIB metal as positioned in the Periodic Table of Elements; and Me can be in any of its theoretically possible oxidation states. Also provided are olefin monomers (particularly propylene) polymerised using these catalysts to form syndiotactic/atactic block polymers of high molecular weight and comprising at least 70% of syndiotactic triads.

The invention discloses a polyarylether compound containing a quaternary ammonium salt side group and fluorenyl and a preparation method and application thereof. The polyarylether compound has a following structure: X is an arbitrary negative ion, x and y show degree of polymerization, the x ranges from 1 to 200, the y ranges from 0 to 200, and x/(x+y)*100% is equal to 0.5 to 100. The preparation method of the polyarylether compound includes: bisphenol fluorene monomer containing a tertiary amine side group, aromatic monomer containing halogen atoms or the aromatic monomer containing the halogen atoms and other bisphenol monomer are used as raw materials to be copolymerized to obtain polyarylether containing the tertiary amine side group and the fluorenyl, then the polyarylether is reacted with halogenated hydrocarbon, and finally the polyarylether compound containing the quaternary ammonium salt side group and the fluorenyl are obtained through exchange of the negative ion. The polyarylether compound serves as a framework of a proton exchange membrane, can meet requirements of alkaline fuel batteries and all-vanadium redox flow batteries for physical and chemical properties and mechanical properties of an ion exchange membrane, has high ionic conductivity, and improves self-discharge resistant performance of the batteries.

The invention relates to a fluorenyl windmill grid material and a preparation and application method thereof, and belongs to the field of organic molecular materials and high and new photoelectric technologies. The fluorenyl windmill grid material is cyclic oligomer with fluorenyl micromolecules as monomers, and the specific general structural formula is shown in the description. The material has the advantages that the fluorenyl windmill grid material has both porous characteristics and semiconductor photoelectric characteristics; raw materials are cheap and easy to obtain, reaction conditions are mild, and operation is easy; the fluorenyl windmill grid material has good mechanical properties of a nanomaterial; the fluorenyl windmill grid material has good solubility, and nanofilm processing or fibration processing is facilitated; with a rigid framework, the fluorenyl windmill grid material is high in glass transition temperature, high in thermal stability, electrochemical stability and spectrum stability and the like. Thus, the fluorenyl windmill grid material is expected to become a new-generation practical organic micromolecular photoelectric material and has good application prospects in the fields of organic electronics, spintronics, optoelectronics, mechatronics, nanobiology and the like.

Disclosed herein is an electroluminescent polymer having a 9-fluoren-2-yl-9-aryl-2,7-fluorenyl unit and an electroluminescent device using the same. Specifically, an electroluminescent polymer having a 9-fluoren-2-yl-9-aryl-2,7-fluorenyl unit, which can be used as a blue electroluminescent polymer and a host material by introducing the substituted fluorenyl group at the 9-position of fluorene, and an electroluminescent device using the electroluminescent polymer. The electroluminescent polymer is applicable as a host material for highly pure blue, green and red luminescence, and has high solubility, high heat stability and high quantum efficiency.

The invention relates to a supported polyolefin catalyst, preparation method and application; a carrier is spherical organic benzene zirconium phosphate; the main catalyst for olefin polymerization is a metallocene compound, the central atom Ti, Zr or Hf of the metallocene compound accounts for 0.01-50% of the carrier content; organic ligands are cyclopentadienyl and the derivative thereof, or indenyl and the derivative thereof, or flourenyl and the derivative thereof, or the bridging cyclopentadienyl and the derivative thereof, or the bridging indenyl and the derivative thereof, or the bridging flourenyl and the derivative thereof; the catalyst is used for homopolymerization or copolymerization of any one of or the mixture of any two or more of ethene, and alpha-olefin, cycloolefin and dialkene of C3-C20; the cocatalyst is alkyl aluminium, alkylaluminium halide or alkylaluminoxane; the ratio of Al and the central atom zirconium of the metallocene compound is 10-3000; the polymerization temperature is minus 78 DEG C to 200 DEG C, the pressure is 0.1 to 10MPa, and the catalytic activity is high.

Compounds, pharmaceutical compositions and methods for the therapeutic delivery of carbon monoxide to humans and other mammals that employ transition metal complexes having at least a substituted cyclopentadienyl, indenyl or fluorenyl ligand and two or more carbonyl ligands.

Norbornene monomers with fluorene group and polymer material thereof are disclosed. The norbornene monomers with fluorene group are prepared by Diels-Alder reation. The Norbomene monomers containing fluorene groups are highly active for ring-opening-metathesis polymerization (ROMP), and the molecular weight and PDI value of the obtained polymers are controllable.

The invention provides an ester-group-containing diamine type fluorenyl benzoxazine, which comprises the following structure shown as the accompanying drawing, in the formula, A is fluorenyl containing C1 to C4 alkyl groups, fluorenyl containing substituted or unsubstituted aromatic ring or fluorenyl containing phenoxy ethyl, and R1 is one kind of materials from hydrogen, methyl, methoxy group, trifluoromethyl or cyanogroup. The ester-group-containing fluorenyl diamine monomers are used as amine resources for synthesizing the ester-group-containing diamine type fluorenyl benzoxazine. Flexible ester groups are introduced in the benzoxazine monomer molecular structure for improving the toughness and the processing performance of the benzoxazine. The ester-group-containing diamine type fluorenyl benzoxazine prepared by a method provided by the invention can be used in the fields of advanced composite material base resin, electronic encapsulating materials, insulation materials, laminated materials and the like.

Novel amine compounds that can be utilized as hole transport materials, hole injection materials or the like of organic electroluminescence devices, electrophotographic receptors or the like, and their production processes are provided.

The novel amine compound is represented by the following general formula (1).

In the formula, R¹ and R² each independently represents hydrogen atom, a linear, branched or cyclic alkyl group or alkoxy group, an aryl group, an aryloxy group or a halogen atom; Ar¹ and Ar² each independently represents a substituted or unsubstituted aryl group or heteroaryl group, and may form a nitrogen-containing heterocyclic ring together with the nitrogen atom bonded thereto; and Ar³ each independently represents a substituted or unsubstituted phenyl group, naphthyl group, biphenylyl group, terphenylyl group, anthryl group, fluorenyl group or pyridyl group (except for amino-substituted groups); and M represents a single bond, an arylene group or a heteroarylene group.

The invention relates to a bisphenol monomer containing a bi-tert-butyl and fluorenyl structure. The bisphenol monomer is 9, 9-bi(4-hydroxyl-3-tert-butyl phenyl) fluorine. The monomer is simple in a synthetic route, high in yield, easy to purify, stable at the room temperature and can be used for preparing fluorine-contained polyarylether. The bisphenol monomer containing the bi-tert-butyl and fluorenyl structure is prepared by the following steps of: reacting reactants 2-tert butyl phenol and 9-fluorenone in the presence of an acid catalyst, transferring a product into a mixed solvent of ethanol and water, carrying out suction filtering, and further recrystallizing to obtain the target product. The bisphenol monomer containing the bi-tert-butyl and fluorenyl structure is used for preparing the fluorine-contained polyarylether. The prepared polyarylether has good dissolving film forming property, excellent thermal property and low dielectric constant.

A catalyst comprising a cocatalyst and a catalyst component obtained by contacting a silicon-containing metallocene compound with an inorganic support to chemically bond the metallocene compound to the inorganic support, wherein the silicon-containing metallocene compound has a formula (I): wherein: M is a metal selected from [the group consisting of] group 4, 5, or 6 of the periodic table; each X is independently selected from the group consisting of hydrogen, halogen, C1-C10 alkyl, C1-C10 alkoxy, C6-C10 aryl, C6-C10 aryloxy, C2-C10 alkenyl, C7-C40 arylalkyl, C7-C40 alkylaryl, and C8-C40 arylalkenyl; A1 and A2 are independently selected from the group consisting of cyclopentadienyl, substituted cyclopentadienyl, indenyl, fluorenyl, substituted indenyl, and substituted fluorenyl, wherein the substituents are independently C1-C10 linear or branched alkyl, C5-C7 cycloalkyl, optionally substituted by an alkyl group, C6-C10 aryl, C6-C10 aryloxy, C2-C10 alkenyl, C7-C40 arylalkyl, C7-C40 alkylaryl, or C8-C40 arylalkenyl.

Disclosed herein is an organic electroluminescent polymer having 9,9-di(fluorenyl)-2,7-fluorenyl unit and an electroluminescent device using the same. Specifically, the current invention provides an organic electroluminescent polymer having 9,9-di(fluorenyl)-2,7-fluorenyl unit, which can be used as a blue electroluminescent polymer and host material by introducing the substituted fluorenyl group at the 9-position of fluorene, and an electroluminescent device using the electroluminescent polymer. The electroluminescent polymer is applicable as a host material for highly pure blue, green and red, having high solubility, high heat stability and high quantum efficiency.

Disclosed is a fluorenylidene-diphenol-containing polyphenylene oxide which is defined by the following structural formula

wherein D, X, Y, Z and b are defined in the specification. The fluorenylidene-diphenol-modified polyphenylene oxide resin or its prepolymer may be used for producing resin products with better thermal resistance, dielectric property, flame retardancy and lower thermal expansion. Accordingly, the resin products, such as prepregs, laminates or printed circuit boards, are suitable for use in electronic products with high speed and high frequency signal transmission to further improve the reliability, thermal resistance, and dimensional stability of the electronic products.

The invention discloses an N, N'-diphenyl-N-(9, 9-dimethyl-2-fluorenyl)-N'-(9, 9-dimethyl-7'-(2''-naphthyl)-2'-fluorenyl)-benzidine and a synthesis method thereof. The method uses 9, 9-dimethyl-2-acetyl aminofluorene, 9, 9-dimethyl-2-bromine fluorine and 2-bromonaphthalene as starting materials for respectively preparing three segments. Finally, the three segments are respectively processed with a Ullmann condensation reaction and a Suzuki coupling reaction, and then, a final product is obtained through purification. The product prepared by a mode provided by the invention has higher heat stability and lower crystallinity, so that, when the product is used as a hole transmission material, too much holes in a luminescent layer are reduced, and service life of an OLED material can be prolonged. Additionally, a test result shows that purity of the product can be more than 99%, yield is high, and cost is low, so that the product is suitable for industrial production.

The invention discloses a fluorenyl triangular-prism-shaped organic cage compound, and a preparation method and an application of the compound. The fluorenyl triangular-prism-shaped organic cage compound has a structure represented as a formula I shown in the description. The preparation method comprises performing cyclization on fluorenyl dimeric tertiary alcohol under a Friedel-Crafts reaction which is catalyzed by an acid to obtain the fluorenyl triangular-prism-shaped organic cage compound. The fluorenyl triangular-prism-shape organic molecular cage has a large cavity and specific surface area, has good solubility, good heat, electrochemistry and optics stability, and thus has wide application prospects in the fields of organic light emitting devices, molecular recognition, porous materials, supramolecular chemistry and the like.

The invention provides sulfonated aromatic polyamidecontaining fluorenyl and trifluoromethyl structures. The preparation method of the sulfonated aromatic polyamide containing the fluorenyl and trifluoromethyl structures comprises the following steps: adding a sulfonated diamine monomer containing the fluorenyl structure, an aromatic diamine monomer containing the trifluoromethyl structure and aromatic diacid into an organic solvent, carrying out polycondensation in the presence of a catalyst and a solubilizer at 100-130 DEG C for 4-8 hours to obtain a fibroid polymer, and further carrying acidic solution exchange to obtain a sulfonated aromatic polyamide polymer. The sulfonated aromatic polyamide has favorable film forming performance; and the prepared polymer thin films have excellent dimensional stability, favorable chemical oxidation resistance and relatively high proton conductivity, and can be used as a proton exchange film material for fuel cells.

Provided is a novel fluorene-based polymer having urethane bonds and a method for preparing the fluorene-based polymer. According to the method, a diol compound is condensed with a diisocyanate instead of an acid dianhydride, and then an acid anhydride is reacted with the reaction mixture to introduce desired acid groups into the final polymer. Further provided is a negative-type photosensitive resin composition comprising of the fluorene-based polymer as a binder resin. The composition exhibits improved chemical resistance, good development margin and high sensitivity due to presence of the acid groups despite the low molecular weight of the fluorene-based polymer.