WO2006068090A1 - 重合触媒、それを用いて得られた重合体、およびその高分子複合体 - Google Patents
重合触媒、それを用いて得られた重合体、およびその高分子複合体 Download PDFInfo
- Publication number
- WO2006068090A1 WO2006068090A1 PCT/JP2005/023266 JP2005023266W WO2006068090A1 WO 2006068090 A1 WO2006068090 A1 WO 2006068090A1 JP 2005023266 W JP2005023266 W JP 2005023266W WO 2006068090 A1 WO2006068090 A1 WO 2006068090A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polymer
- carbon fiber
- polymerization catalyst
- polymerization
- fine carbon
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/08—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F289/00—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds not provided for in groups C08F251/00 - C08F287/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F292/00—Macromolecular compounds obtained by polymerising monomers on to inorganic materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/10—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to inorganic materials
Definitions
- the present invention relates to a novel polymerization catalyst using carbon fiber as a carrier for obtaining an organic polymer, a polymerization product grown on the surface of carbon fiber by using this catalyst, and further obtained using this polymerization product.
- the obtained polymer composite is a novel polymerization catalyst using carbon fiber as a carrier for obtaining an organic polymer, a polymerization product grown on the surface of carbon fiber by using this catalyst, and further obtained using this polymerization product.
- Carbon black which has been used as a carbon material in the past, has to be contained in a relatively large amount in order to form a conductive path rather than the particle shape. There was a tendency that the features could not be utilized. Furthermore, the conductive path formed in the polymer easily changes depending on the molding conditions, and there is a drawback that the electric resistance is easily changed.
- Patent Document 1 discloses a carbon black graft polymer in which a polymer chain having a reactive group capable of reacting with the functional group is bonded to a functional group on the surface of carbon black. It has been shown that the dispersibility and dispersion stability of carbon black in a polymer are improved, and the physical and electrical properties of the polymer composite are improved. However, even with such a carbon black graft polymer, the problems described above due to the shape of the carbon black are not improved, and the reaction between the functional group on the carbon black surface and the polymer graft chain is not possible. The rate was extremely low and difficult to control, and the dispersibility and dispersion stability were not fully satisfactory.
- a carbon fiber obtained by graphitizing an organic polymer fiber such as polyacrylonitrile contributes to the stable formation of a conductive path in a polymer matrix and overcomes the above-mentioned drawbacks.
- the carbon fiber In order to obtain a high-molecular-weight composite with low electrical conductivity, the carbon fiber itself has a high electrical resistance, but must contain a considerable amount of carbon fiber.
- Such fine carbon fibers are generally called carbon nanotubes (hereinafter also referred to as “CNT”).
- CNT carbon nanotubes
- Graphite layers constituting carbon nanostructures typified by carbon nanotubes usually have an ordered six-membered ring arrangement structure, and are chemically, mechanically and thermally stable along with their unique electrical properties. It is a substance with properties.
- Patent Document 4 discloses a complex in which the same technique is applied only to an elastomer.
- Patent Document 5 discloses a polymer composite obtained as a transparent thin film as a result.
- the combined use of metal fine powder, which is a conductive filler, and fine carbon fiber increases the specific gravity, making use of the characteristics of the fine carbon fiber, which is a lightweight conductive filler. I can't. Furthermore, the electrical contact between the two conductive fillers is uneven, and the conductivity of the composite is unstable. Light scattering principle force Transparency can be obtained if the size of the inhomogeneous dispersion is reduced below the observation wavelength, but a polymer composite in which fine carbon fibers are so finely dispersed has not yet been obtained.
- Patent Document 6 and Patent Document 7 describe many organic functionalizations and metallizations as chemical modification methods for fine carbon fibers. Is disclosed.
- Patent Document 8 also proposes to improve the dispersibility of the fine carbon fiber by covering the surface of the fine carbon fiber with a polymer having affinity for the fine carbon fiber. For example, as shown in Patent Document 9, it has also been proposed to polymerize a monomer in the presence of a fine carbon fiber dispersion to produce a polymer composite with improved dispersibility.
- the fine carbon fiber can be applied to various catalyst carriers including hydrogenation.
- Patent Document 10 discloses such a catalyst production and application to the reaction.
- the catalyst support on the fine carbon fiber developed so far is intended to be a heterogeneous catalyst that can be easily separated from the product after the reaction. Therefore, it cannot be applied to the synthesis of composites with matrix force that strongly interacts with fine carbon fibers, which have extremely weak retention.
- the supported metal catalyst could not catalyze the polymerization of olefin monomers or the like that lack coordination power to the carbon-carbon unsaturated bond.
- Patent Literature l WO97Z 0295
- Patent Document 2 Japanese Patent No. 2641712
- Patent Document 3 Japanese Patent No. 3034027
- Patent Document 4 Japanese Patent No. 2863192
- Patent Document 5 Japanese Patent Laid-Open No. 9 115334
- Patent Document 6 Japanese National Table 11 502494
- Patent Document 7 Japanese Special Table 2002-503204
- Patent Document 8 Japanese Unexamined Patent Publication No. 2004-2119
- Patent Document 9 US Patent Publication 2003Z0158323
- Patent Document 10 Japanese National Table 7-7508455
- an object of the present invention is to provide a polymerization catalyst in which a metal is supported on fine carbon fibers and a polymer using the same based on the technical background described above, and to obtain a uniform and differentially dispersed high using the same. It is to provide a molecular complex.
- the present inventor has found that a diameter of 0.5 to 200 nm, an aspect ratio (length Z Matrix polymer that develops a polymerization catalyst in which a metal is supported as a metal complex on the surface of a fine carbon fiber having a diameter of 5 or more and separates the polymer obtained by polymerization using the fine carbon fiber. It was found that by using the obtained polymer itself without separating it from the fine carbon fiber, a polymer composite that solves the above-mentioned problems in the prior art can be provided. The invention has been reached.
- the present invention for solving the above-mentioned problems is characterized in that a metal is supported as a metal complex on the surface of a carbon fiber having a diameter of 0.5 to 200 nm and an aspect ratio (length Z diameter) of 5 or more.
- the polymerization catalyst is characterized in that a metal is supported as a metal complex on the surface of a carbon fiber having a diameter of 0.5 to 200 nm and an aspect ratio (length Z diameter) of 5 or more.
- the present invention also shows the above polymerization catalyst characterized in that a metal atom is directly coordinated to the graphite structure constituting the carbon fiber.
- the present invention further shows the above-described polymerization catalyst, wherein a metal atom is coordinated to an oxygen-containing group formed by oxidizing the carbon fiber.
- the present invention also shows the above polymerization catalyst, wherein the polymerization catalyst is used for polymerization of a monomer having an unsaturated bond.
- the present invention further shows the polymerization catalyst, wherein the polymerization catalyst is used for polycondensation involving hydrolysis and dehydration.
- the present invention that solves the above problems is also a polymer characterized by a structure represented by the following general formula (1).
- CNT represents carbon fiber
- P is a polymer polymerized or polycondensed by a polymerization catalyst structure arranged on the surface of the carbon fiber consisting of a metal complex supported on the surface of the carbon fiber.
- CNT and P are bonded to each other through this polymerization catalyst, n indicates the degree of polymerization of the polymer, 3 to 10 7 , and m is per carbon constituting the surface of the CNT.
- the number of bonds of P in the range from 0.5 to 0.001;).
- the present invention for solving the above-mentioned problems is also a polymer composite characterized in that it contains at least one polymer characterized by the structure represented by the general formula (1).
- the invention's effect is also a polymer composite characterized in that it contains at least one polymer characterized by the structure represented by the general formula (1).
- the polymerization catalyst according to the present invention can polymerize or polycondensate, for example, an olefin-containing monomer or a mixture of a polycyanate and a polyamine, while controlling the molecular weight and the number of polymer chains.
- the resulting polymer consists of grown polymer chains and fine carbon fibers, both of which are strongly bonded through the coordination structure of the catalyst. Therefore, the polymer itself or the polymer composite obtained using the polymer is extremely thermally stable, and the fine carbon fibers constituting it are uniformly and finely dispersed in the matrix.
- the polymer composite of the present invention thus obtained is an excellent material having characteristics such as heat resistance, high strength, high conductivity, and high transparency, utilizing the characteristics of fine carbon fibers.
- the polymer of the present invention itself or the polymer composite thereof is conductive, transparent. It becomes a material excellent in properties, mechanical properties, heat resistance, etc., and can be suitably used for various applications including conductive materials and electromagnetic shielding materials.
- the polymerization catalyst according to the present invention is a carbon fiber having a diameter of 0.5 to 200 nm, more preferably 0.5 to: LOOnm, aspect ratio (length Z diameter) of 5 or more, more preferably 100 or more.
- a metal is supported on the surface of the metal as a metal complex.
- the support as a metal complex is typically formed by bonding a carbon atom in the fine carbon fiber graphite structure as a coordination atom to the central metal, or by introducing a metal arrangement introduced on the surface of the fine carbon fiber. Coordinated functional groups or atoms can be combined with a central metal to form a metal complex.
- the graphite structure constituting the fine carbon fiber (that is, a partial region of the graphite structure) is used as the ligand of the metal complex (at least one of the ligands).
- the graphite structure is used as the ligand of the metal complex as it is, or the graphite structure (or a partial region of the graphite structure).
- the coordination atom itself is an atom other than carbon introduced on the surface of the carbon fiber as described above
- the carbon fiber satisfying the above-mentioned predetermined condition used as a carrier for the polymerization catalyst according to the present invention is not particularly limited, and can be prepared, for example, as follows.
- an organic compound such as hydrocarbon is chemically pyrolyzed using transition metal ultrafine particles as a catalyst to obtain a fiber structure, which is further subjected to high-temperature heat treatment as necessary.
- hydrocarbons such as benzene, toluene and xylene, alcohols such as carbon monoxide (CO) and ethanol can be used.
- CO carbon monoxide
- atmospheric gas an inert gas such as argon, helium, or xenon, or hydrogen can be used.
- a transition metal such as iron, cobalt or molybdenum, or a transition metal compound such as pheucene or metal acetate and a sulfur compound such as sulfur or thiophene or iron sulfide is used.
- the synthesis of the fiber structure is usually performed by using a CVD method such as hydrocarbon, evaporating the mixture of hydrocarbon and catalyst as raw materials, and using hydrogen gas or the like as a carrier gas in the reaction furnace. It is carried out by introducing it into pyrolysis at a temperature of 800-1300 ° C.
- the fine carbon fiber as a raw material is heat-treated, whereby the graphite structure is further densified, the number of coordinated metals is increased, and more polymerization active sites can be introduced.
- This is useful in that the polymer chain produced by the polymerization catalyst interacts more with fine carbon fibers, increasing the adhesion strength and thermal stability of the interface.
- the heat treatment temperature for this is 2000 ° C or higher, preferably 2400-3000. C.
- the fine carbon fiber that has been heat-treated has a graphite structure having a defect site in which a carboxyl group, an aldehyde, a hydroxyl group, or the like is bonded, and these oxygen-containing groups are also used as a metal ligand.
- This oxygen-containing group can be increased by acid / acid treatment, and is useful in increasing the adhesive strength and thermal stability at the interface between the fine carbon fiber and the generated polymer chain as described above.
- the conditions for such oxidation treatment include, for example, a method in which concentrated sulfuric acid Z is mixed with 3Z1 (volume ratio) of concentrated nitric acid and heated at a temperature of 100 to 140 ° C for 30 minutes to 12 hours, or 200 to 200 A method such as a method of contacting with carbon dioxide in the range of 600 ° C is selected.
- the equivalent-circle average diameter of the carbon fiber A fine carbon fiber having a desired fiber diameter is obtained through a step of pulverizing to a few mm and a step of pulverizing the circle-equivalent average diameter of the crushed carbon fiber to a predetermined size. .
- the carbon fiber satisfying the above-mentioned predetermined conditions used as a carrier for the polymerization catalyst of the present invention is not particularly limited, but when placed in a polymer matrix as described later, Specifically, it is desirable that there are few defects in the graphene sheet constituting the carbon fiber in order to exhibit high strength and conductivity.
- IDZIG specific power measured by Raman spectroscopy is 10 or less, More preferably, it is 1 or less.
- the fine carbon fiber thus prepared can provide a polymerization catalyst according to the present invention by reaction with an organometallic compound.
- Specific examples of the polymerization catalyst according to the present invention include, for example, meta-octene having a graphite structure constituting the fine carbon fiber as described above as a direct ligand, and the graphite. ⁇ Preferred examples include complexes in which the generated carboxyl group, aldehyde, hydroxyl group, etc. are part of the ligand.
- the central metal is not particularly limited, and examples thereof include iron, titanium, zirconium, rhodium, and iridium.
- the condensed benzene ring represents a part of the graphite structure of fine carbon fiber
- the fine carbon fiber having an oxygen-containing group is heated in an appropriate medium such as a basal (Vaska) reagent that is an iridium complex, a Wilkinson reagent that is a rhodium complex, and dimethyl sulfoxide.
- an appropriate medium such as a basal (Vaska) reagent that is an iridium complex, a Wilkinson reagent that is a rhodium complex, and dimethyl sulfoxide.
- the amount of metal to be introduced depends on the amount of phthalene and the amount of oxygen-containing groups used. In the former case, from 0.01 to lg of fine carbon fiber: In the latter case where the range of LOmmol is preferred, it should be 0.01 to 0.5 equivalent per lg of fine carbon fiber. When the amount is less than these lower limits, sufficient interaction at the interface cannot be obtained, and the mechanical properties of the finally obtained polymer composite cannot be improved to a desired one as will be described later. .
- the coordination compound of a fine carbon fiber and a metal which is a polymerization catalyst according to the present invention, prepared as described above, for example, produces a polyamide by addition polymerization and condensation polymerization of an olefin monomer.
- polymerization or condensation polymerization conditions for example, polymerization using a catalyst such as a conventionally known meta-octacene catalyst can be applied, and the same polymerization condensation conditions as those described above can be applied.
- a catalyst such as a conventionally known meta-octacene catalyst
- Various polymerization methods such as bulk polymerization and gas phase polymerization can be used.
- the olefin monomer is not particularly limited, and examples thereof include ethene, propene, 1,4-butadiene, isoprene, cyclopentene, norbornene, 3,4-dihydrofuran, methyl (meth) acrylate. , Butyl (meth) acrylate, benzyl (meth) acrylate, acrylamide, N, N-dimethylacrylamide, N-butylpyrrolidone, di-t-butyl fumarate, styrene, acrylonitrile, etc. and mixtures of two or more of these Can be mentioned.
- methyl (meth) acrylate refers to both methyl methacrylate and methyl acrylate, and the others are the same.
- a promoter such as methylaluminoxane can be used for the purpose of increasing the degree of polymerization or decreasing the molecular weight dispersion of the polymer.
- the polycondensation raw material is not particularly limited.
- the polymer according to the present invention is obtained by polymerizing or polycondensing these monomers using the polymerization catalyst according to the present invention as described above, and bears the polymerization catalyst. It is characterized by having a structure represented by the following general formula (1), which has both the fine carbon fiber held and the strength of the polymer chain that has grown.
- CNT represents carbon fiber
- P is a polymer polymerized or polycondensed by a polymerization catalyst structure arranged on the surface of the carbon fiber consisting of a metal complex supported on the surface of the carbon fiber.
- CNT and P are bonded to each other through this polymerization catalyst, n indicates the degree of polymerization of the polymer, and m is the binding of P per carbon constituting the surface of the CNT.
- the polymerization degree n is 3 to 10 7 , more preferably 5 to 10 7
- the bond number m is 0.5 to 0.001, more preferably 0.1 to 0. I want to be 001! / ⁇ .
- the molecular weight of the polymer chain can be controlled by the polymerization temperature, polymerization time, monomer concentration, and the like during polymerization.
- the polymer according to the present invention is an oligomer having a polymer chain molecular weight of 5000 or less, it is recovered as fine carbon fiber whose surface is modified at the molecular level, and the molecular weight is 5
- the polymer according to the present invention can be used as a polymer composite as it is, or further blended with another polymer material to form a composite.
- the polymer chain constituting the polymer has a molecular weight of 5000 or less, it can be preferably mixed with other polymer materials to prepare the polymer composite of the present invention.
- the polymer composite according to the present invention is not particularly limited as the other polymer material mixed with the polymer according to the present invention. Having the same primary structure as the high-molecular chain has enhanced interfacial interaction with fine carbon fibers. Is preferable.
- the monomer used in the production of the polymer of the present invention is propene, it is preferable to mix it with polypropylene as another polymer material.
- polypropylene as another polymer material.
- other polymer composites that are particularly limited to this concept may be produced.
- the polymer chain of the polymer according to the present invention has a molecular weight of 5000 or more
- the polymer of the present invention can be used alone or mixed with another polymer material to produce the polymer of the present invention. It can be used as a complex.
- the other polymer materials are preferably the same as those described above.
- the polymer composite according to the present invention as a means for mixing with another polymer material, a method of dispersing and dissolving in a solvent and removing the solvent, a roll, an adader, an etastruder, etc. Forces such as a method of heating and melt mixing and a method of polymerizing a monomer in which the polymer of the present invention is dispersed can be appropriately selected.
- the other polymer material to be a matrix is not necessarily limited to a solid phase in the final product form, and is not limited to at the time of mixing. Even in the form of products, liquid polymers and polymer compositions can be included.
- the polymer composite of the present invention has excellent thermal or mechanical properties. This means that the strong interaction due to the bonding between the metal constituting the polymerization catalyst of the present invention and the surface of the fine carbon fiber strongly bonds the polymer chain grown from the metal, and the polymer chain is finally obtained. It is caused by bonding with the matrix of the polymer composite by chemical interaction or physical entanglement. Furthermore, it is an important factor of the effect of the present invention that all these interactions can be controlled from the preparation of the polymerization catalyst to the production of the composite.
- the method for preparing the polymerization catalyst of the present invention responsible for the interaction between the polymer chain and the fine carbon fiber is limited when the surface modification of the carbon fiber reported so far is considerably low in the introduction rate of chemical species and functional groups. Overcoming the problem of being uncontrollable and uncontrollable.
- the fine carbon fibers are uniformly and finely dispersed in the matrix. Lower content of fine carbon fibers (not specifically limited, but specific examples include matrix polymer) 0.01 to 5% by mass) can provide a composite having high conductivity and transparency.
- the composite of the present invention obtained as described above is excellent in thermal, mechanical, electrical, or optical characteristics, and can be suitably used in applications in which the respective characteristics are activated.
- the polymer composite according to the present invention includes various conventionally known additives or compounding agents, For example, a colorant, an antioxidant, an ultraviolet ray inhibitor, a flame retardant, a lubricant, other fillers, a plasticizer, etc. are arbitrarily selected as long as the desired properties of the polymer composite according to the present invention are satisfied. Can be blended.
- the UV-visible spectrophotometer UV-330 manufactured by Hitachi, Ltd. was used, and it was obtained from the spectroscopic measurement result of a 1 m thick film sample.
- TMA measurement was carried out with a load of 98.07 mN (10 gf) using a pin with a diameter of 0.5 mm by a RMA TMA apparatus, and the evaluation was made from the chart obtained by raising the temperature by 10 ° CZ.
- MWCNT multi-layer fine carbon fiber
- titanocene 200 mg was dispersed in 20 ml of dioxane, and then aluminum chloride-tetrahydrofuran complex (0.5 mol / 1) 2 ml was added and stirred for 12 hours at room temperature under an argon atmosphere.
- the precipitated metallic aluminum was removed by decantation, the remaining reaction mixture was filtered, and the residue was washed 3 times with 2N-hydrochloric acid and 4 times with pure.
- the recovered residue was washed with tetrahydrofuran for 12 hours using a Soxhlet extractor and vacuum dried to obtain the polymerization catalyst of the present invention.
- a mixture of 120 mg of MWCNT having an inner diameter of S40 to 80 nm and a mixed acid of concentrated sulfuric acid and concentrated nitric acid (volume ratio 3: 1) 1 was stirred at 130 ° C for 2 hours.
- the reaction mixture was poured into a large amount of pure water, and MWCNT was recovered by filtration, washing with water and drying.
- This MWCNT was dissolved in 15 ml of dimethylsulfoxide (DMSO), and 10 ml of 1OmmolZl Wilkinson reagent DMSO solution was added thereto and heated at 60 ° C for 72 hours.
- the reaction mixture was cooled and then filtered, and the residue was washed with DMSO, ethanol, water, and dried to obtain the polymerization catalyst of the present invention.
- DMSO dimethylsulfoxide
- Polymerization catalyst lOmg obtained in Example 1 was made into a lOOm 1 toluene solution in an Ar atmosphere in a 300 ml pressure vessel, and methylaluminoxane lmg was stirred there for 2 hours at room temperature, and then propene was introduced at 10 atm. The mixture was further stirred at room temperature for 1 hour. After releasing the pressure, the reaction The mixture was collected by filtration and dried to obtain the polymer of the present invention. TG-DTA analysis of this polymer showed a 2.1% weight loss at 420 ° C.
- the fine carbon fiber propene oligomer adduct lOOg obtained in Example 3 and 4893 g of polypropylene were kneaded at 250 ° C. using an etastruder.
- the obtained kneaded product has a volume resistance of 860 ⁇ ′cm and can be suitably used as a conductive polymer.
- Example 2 25 mg of the polymerization catalyst obtained in Example 2 was made into a 100 ml 1 toluene solution in a 300 ml pressure vessel in an Ar atmosphere, and 1 mg of methylaluminoxane was stirred at room temperature for 2 hours, and then ethylene was introduced at 15 atm. The mixture was further stirred at room temperature for 18 hours. After releasing the pressure, the reaction mixture was collected by filtration and dried to obtain the polymer of the present invention. This polymer, which was stirred in concentrated sulfuric acid for 12 hours, filtered and washed with water, had a weight average molecular weight of 4.2 ⁇ 10 6 at 140 ° C. of the soluble portion of orthodichlorobenzene.
- the weight change was constant at 380 ° C, and the residual ratio at that time was 4.8%.
- This polymer has a volume resistance of 120 ⁇ ′cm and is suitably used as a conductive polymer.
- a polymerization catalyst of the present invention was obtained in the same manner as in Example 1, except that 210 mg of pheucose was used instead of titanocene.
- the polymer of the present invention was obtained by dispersing 2 g of this catalyst in methyl metatalylate by ultrasonic irradiation and heating at 60 ° C. for 4 hours.
- the tensile modulus and Tg of this polymer were 52 GPa and 114 ° C, which were superior to those of pure polymethyl methacrylate (4GPa and 100 ° C, respectively) with excellent thermomechanical properties.
- nylon adduct lOOg of fine carbon fiber obtained in Example 7 and 3182 g of polyacrylonitrile were kneaded at 340 ° C. using an etastruder.
- the obtained kneaded material has a thickness of 1 ⁇ m, a light transmittance of 91% at 550 nm and a volume resistance of 146 ⁇ ′cm, and is suitably used as a transparent conductive polymer.
- a mixture of 100 g of methyl metatalylate containing 0.5% of azobisdimethylbare-tolyl and 2 g of fine carbon fiber was polymerized from 40 ° C. to 120 ° C. over 20 hours.
- the resulting polymer had partially agglomerated fine carbon fibers. Its volume resistance was 7. 3 to 10 4 ⁇ ⁇ cm, and it was impossible to obtain a composite that vibrated the conductivity of fine carbon fibers.
- the oxidized fine carbon fiber lg was refluxed with 100 g of sulfuryl chloride for 48 hours, and the resulting acid chloride and 20 g of octadecylamine were refluxed in toluene for 12 hours. Introduced.
- the weight change was constant at 280 ° C, and the residual rate at that time was 99.2%, which was slightly alkylated.
- the modified fine carbon fiber lg and 50 g of polyethylene were kneaded with an extruder to obtain a composite.
- the volume resistance of this composite was 8.1 ⁇ 10 6 ⁇ ′cm, and a composite that made the most of the conductivity of fine carbon fibers could not be obtained.
- Fine carbon fiber 0.5g, antimony-doped tin oxide 66g, polyethylene terephthalate lOOg were mixed in a solvent of methyl ethyl ketone 350g and cyclohexanone 50g, and the resulting suspension was applied on a glass plate. After drying: L m film was formed. The light transmittance of this film was 88% at 550 nm, and the force surface resistance was as high as 10 9 ⁇ .
- Example 2 a rhodium-supported catalyst was prepared using fine carbon fibers that were not oxidized. Styrene was polymerized using this catalyst. The weight average molecular weight of the obtained polymer by GPC was 5400, and it did not have sufficient activity as a polymerization catalyst. Further, when this polymerization product was washed with tetrahydrofuran at room temperature, it was shown by TG-DTA that no styrene polymer was present on the fine carbon fibers.
- the resulting polymer 2g and polymethylmetatalylate lOOg were kneaded at 250 ° C.
- the resulting composite had a tensile modulus and a glass transition temperature of 1. lGPa and 102 ° C., respectively.
- Analysis of the polymer produced by TG-MS revealed that weight loss due to depolymerization started at 220 ° C and reached a constant weight of 48% at 250 ° C. Bound polymethylmetatalate suggests elimination.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Fibers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-370073 | 2004-12-21 | ||
JP2004370073A JP2006176601A (ja) | 2004-12-21 | 2004-12-21 | 重合触媒、それを用いて得られた重合体、およびその高分子複合体 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006068090A1 true WO2006068090A1 (ja) | 2006-06-29 |
Family
ID=36601690
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/023266 WO2006068090A1 (ja) | 2004-12-21 | 2005-12-19 | 重合触媒、それを用いて得られた重合体、およびその高分子複合体 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP2006176601A (ja) |
WO (1) | WO2006068090A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006035773A1 (de) * | 2006-08-01 | 2008-02-07 | Bayer Technology Services Gmbh | Verfahren zur Herstellung von Kohlenstoffnanorörchen-Polymer-Mischungen mittels Gasphasenpolymerisation |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4425353B1 (ja) * | 1960-01-18 | 1969-10-25 | ||
JPS60106808A (ja) * | 1983-11-14 | 1985-06-12 | Idemitsu Kosan Co Ltd | ポリエチレン系組成物の製造方法 |
JPH07508455A (ja) * | 1992-05-22 | 1995-09-21 | ハイピリオン カタリシス インターナショナル インコーポレイテッド | 触媒担体,担持された触媒,その製造方法及びその使用方法 |
JP2004183127A (ja) * | 2002-12-02 | 2004-07-02 | Achilles Corp | 変性カーボンナノ繊維並びにこれを含む樹脂組成物及び塗料 |
JP2005029696A (ja) * | 2003-07-04 | 2005-02-03 | Gsi Creos Corp | カーボンナノ材料 |
JP2005281464A (ja) * | 2004-03-29 | 2005-10-13 | Toho Tenax Co Ltd | ポリアミド被覆炭素繊維及びその製造方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3007983B1 (ja) * | 1998-09-05 | 2000-02-14 | 工業技術院長 | 超微細カーボンチューブの製造方法 |
JP2002013025A (ja) * | 2000-06-28 | 2002-01-18 | Toray Ind Inc | ポリエステル繊維の製造方法 |
EP1663864B1 (fr) * | 2003-08-05 | 2009-04-08 | Nanocyl S.A. | Composites a base de polymere comprenant comme charge des nanotubes de carbone: procede d'obtention et utilisations associees |
-
2004
- 2004-12-21 JP JP2004370073A patent/JP2006176601A/ja active Pending
-
2005
- 2005-12-19 WO PCT/JP2005/023266 patent/WO2006068090A1/ja active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4425353B1 (ja) * | 1960-01-18 | 1969-10-25 | ||
JPS60106808A (ja) * | 1983-11-14 | 1985-06-12 | Idemitsu Kosan Co Ltd | ポリエチレン系組成物の製造方法 |
JPH07508455A (ja) * | 1992-05-22 | 1995-09-21 | ハイピリオン カタリシス インターナショナル インコーポレイテッド | 触媒担体,担持された触媒,その製造方法及びその使用方法 |
JP2004183127A (ja) * | 2002-12-02 | 2004-07-02 | Achilles Corp | 変性カーボンナノ繊維並びにこれを含む樹脂組成物及び塗料 |
JP2005029696A (ja) * | 2003-07-04 | 2005-02-03 | Gsi Creos Corp | カーボンナノ材料 |
JP2005281464A (ja) * | 2004-03-29 | 2005-10-13 | Toho Tenax Co Ltd | ポリアミド被覆炭素繊維及びその製造方法 |
Also Published As
Publication number | Publication date |
---|---|
JP2006176601A (ja) | 2006-07-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7968660B2 (en) | Polymer-based composites comprising carbon nanotubes as a filler, method for producing said composites, and associated uses | |
Ma et al. | Development of polymer composites using modified, high-structural integrity graphene platelets | |
Zhu et al. | In situ stabilized carbon nanofiber (CNF) reinforced epoxy nanocomposites | |
JP4360445B2 (ja) | カーボンナノチューブ集合体およびその製造方法 | |
Sun et al. | Fabrication of ruthenium–carbon nanotube nanocomposites in supercritical water | |
Roy et al. | Modifications of carbon for polymer composites and nanocomposites | |
Tong et al. | Surface modification of single‐walled carbon nanotubes with polyethylene via in situ Ziegler–Natta polymerization | |
Lee et al. | Polymer brushes via controlled, surface‐initiated atom transfer radical polymerization (ATRP) from graphene oxide | |
Allahbakhsh et al. | 3-Aminopropyl-triethoxysilane-functionalized rice husk and rice husk ash reinforced polyamide 6/graphene oxide sustainable nanocomposites | |
US6884861B2 (en) | Metal nanoparticle thermoset and carbon compositions from mixtures of metallocene-aromatic-acetylene compounds | |
Yuan et al. | Synthesis and characterization of poly (ethylene terephthalate)/attapulgite nanocomposites | |
Cromer et al. | In-situ polymerization of isotactic polypropylene-nanographite nanocomposites | |
Hatui et al. | Combined effect of expanded graphite and multiwall carbon nanotubes on the thermo mechanical, morphological as well as electrical conductivity of in situ bulk polymerized polystyrene composites | |
CA2489352A1 (en) | Carbon nanotube-filled composites | |
Rajender et al. | Surface‐initiated atom transfer radical polymerization (SI‐ATRP) from graphene oxide: effect of functionalized graphene sheet (FGS) on the synthesis and material properties of PMMA nanocomposites | |
Fernández-d’Arlas et al. | Study of the mechanical, electrical and morphological properties of PU/MWCNT composites obtained by two different processing routes | |
WO2008048349A2 (en) | Depositing nanometer-sized metal particles onto substrates | |
JPWO2010002004A1 (ja) | 炭素繊維及び複合材料 | |
US7198771B2 (en) | Polymeric and carbon compositions with metal nanoparticles | |
Yang et al. | Judicious selection of bifunctional molecules to chemically modify graphene for improving nanomechanical and thermal properties of polymer composites | |
Li et al. | Structure and properties of multi‐walled carbon nanotubes/polyethylene nanocomposites synthesized by in situ polymerization with supported Cp2ZrCl2 catalyst | |
WO2006093147A1 (ja) | 反応性カーボンナノチューブ、高分子被覆カーボンナノチューブ、およびこれらの製造方法 | |
Bonduel et al. | Supported metallocene catalysis as an efficient tool for the preparation of polyethylene/carbon nanotube nanocomposites: Effect of the catalytic system on the coating morphology | |
Zhang et al. | Preparation of PE/GO nanocomposites using in situ polymerization over an efficient, thermally stable GO-supported V-based catalyst | |
Farzi et al. | Effect of radical grafting of tetramethylpentadecane and polypropylene on carbon nanotubes' dispersibility in various solvents and polypropylene matrix |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KM KN KP KR KZ LC LK LR LS LT LU LV LY MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 05816714 Country of ref document: EP Kind code of ref document: A1 |