WO2006073173A1 - エポキシ樹脂硬化物多孔体 - Google Patents
エポキシ樹脂硬化物多孔体 Download PDFInfo
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- WO2006073173A1 WO2006073173A1 PCT/JP2006/300069 JP2006300069W WO2006073173A1 WO 2006073173 A1 WO2006073173 A1 WO 2006073173A1 JP 2006300069 W JP2006300069 W JP 2006300069W WO 2006073173 A1 WO2006073173 A1 WO 2006073173A1
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- epoxy resin
- porous body
- aromatic
- curing agent
- carbon atoms
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
- C08J9/286—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum the liquid phase being a solvent for the monomers but not for the resulting macromolecular composition, i.e. macroporous or macroreticular polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0002—Organic membrane manufacture
- B01D67/0006—Organic membrane manufacture by chemical reactions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/46—Epoxy resins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/26—Synthetic macromolecular compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/15—Use of additives
- B01D2323/18—Pore-control agents or pore formers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2201/00—Foams characterised by the foaming process
- C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
- C08J2201/054—Precipitating the polymer by adding a non-solvent or a different solvent
- C08J2201/0542—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition
- C08J2201/0543—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition the non-solvent being organic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2201/00—Foams characterised by the foaming process
- C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
- C08J2201/054—Precipitating the polymer by adding a non-solvent or a different solvent
- C08J2201/0545—Precipitating the polymer by adding a non-solvent or a different solvent from an aqueous solvent-based polymer composition
- C08J2201/0546—Precipitating the polymer by adding a non-solvent or a different solvent from an aqueous solvent-based polymer composition the non-solvent being organic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249978—Voids specified as micro
- Y10T428/249979—Specified thickness of void-containing component [absolute or relative] or numerical cell dimension
Definitions
- the present invention is a porous body having a three-dimensional network skeleton of a cured epoxy resin, wherein the three-dimensional network structure is a non-particle-aggregating type having a three-dimensional branched structure force of a columnar epoxy cured resin. More specifically, the present invention relates to a porous body and a method for producing the same, such as an enzyme carrier, an antibody carrier, a so-called affinity gel carrier, or an epoxy resin curing that can be used as a purification medium, an absorption / adsorption medium, a packing material for column chromatography, etc. The present invention relates to a porous material and a method for producing the same.
- Porous cross-linked polymer resins used as separation and purification media and column chromatography packing materials are conventionally manufactured and used as microsphere beads by methods such as suspension polymerization, emulsion polymerization, and dispersion polymerization.
- a separation medium monolithic polymer separation
- a separation performance equal to or better than beads by a thin skeleton Media
- the monolithic polymer separation medium also does not need to be fitted to the column housing, and can be easily used for the creation of columns of all aspects, starting from homogeneous solutions and using column power for separation and purification to high-performance chiral columns. It is advantageous in terms of cost and performance, such as being able to manufacture a device at low cost and having a long product life.
- silica columns are extremely expensive, have low alkali resistance, are fragile and have low impact resistance, do not show recognizability to planar structure molecules without special surface treatment, The present situation is that the above-mentioned needs cannot be met because it is difficult to use it as a monolith separation medium.
- Patent Document 1 discloses macroporosity formed by interconnecting crosslinked polymer microspheres having a size of 0.05 to 0.5 m.
- a film and process comprising a cross-linked polymer cartridge is disclosed.
- Patent Document 1 describes that these membranes are used by being punched from a macroporous sheet of a polymer and effectively used for separating macromolecules and small molecules. Has no molecular structure recognizability because it does not have the function of chromatography, that is, the function of repeating adsorption and desorption when the separated molecules pass through the membrane.
- Patent Document 2 discloses a monolithic polymer separation medium obtained by radical polymerization and having specific small pores and large pores, and a method for producing the same. By using this separation medium, it is possible to efficiently separate very large objects that have been impossible in the past, such as protein aggregates, micelles, and nucleic acids, which is impossible with ordinary particle packed columns. It is said that a one-piece continuous bed can be manufactured.
- Patent Document 3 discloses a method for producing a monolith type polymer separation medium having supercrosslinked polymer strength in supercritical diacid carbon.
- the monolith type polymer separation medium produced by the method described in Patent Documents 2 and 3 is also a particle aggregate type porous body structure, and the three-dimensional branch structure of the columnar article of the present invention.
- a non-particle agglomerated 3D network porous body is formed! ⁇ ⁇ .
- a monolithic porous body that also has particle agglomeration force is low in strength and rigidity and has a high porosity and a large liquid flow channel volume. Cannot be used. These can be used as monolithic polymer separation media, but have no molecular structure recognition.
- the monolith type porous body having the particle aggregation force referred to in the present specification is an integral type porous body in which individual fine particles are connected to each other and the entire structure is maintained. If the microstructure is observed, the individual fine particles constituting the porous body are observed.
- Patent Document 4 discloses a solvent-free thermosetting resin, at least one of polyalkylene oxide, polyalkylene glycol, or a derivative thereof compatible with the solvent, and a curing agent for the thermosetting resin.
- a method for forming a continuous porous body obtained by mixing and curing at a specific ratio is disclosed, and in Patent Document 5, other components are further added during the formation of the continuous porous body disclosed in Patent Document 4.
- An additional thermosetting resin porous material and a method for producing the same are disclosed, and epoxy resin is also described as the thermosetting resin.
- a monolithic porous body that has both a deviation and a particle agglomeration force and a method for producing the same are disclosed, and a polymer porous body that also has a three-dimensional network structure force. And a non-particle agglomerated porous body in which the mesh also has a columnar force, should be disclosed.
- the monolithic porous body having the particle cohesive force obtained from Patent Documents 6 and 7 has low strength and rigidity, and has a low porous body specific surface area when the liquid channel volume is increased by increasing the porosity. Therefore, it cannot be used as a particularly large separation medium.
- Patent Document 1 Japanese Patent Laid-Open No. 2-1747
- Patent Document 2 Japanese Patent No. 3168006
- Patent Document 3 Japanese Translation of Special Publication 2002-536478
- Patent Document 4 Japanese Patent Laid-Open No. 2001-181436
- Patent Document 5 Japanese Patent Application Laid-Open No. 2004-244607
- Non-patent literature l S. Kunz- Douglass, P. Beaumont, M.F. Ashby, J. Mater. Sci., 15,1109 (1980)
- Non-Patent Document 2 K. Nakanishi: J. Porous Materials, 4, 67 (1997)
- the present invention has been made to solve the above-described conventional problems, and the object of the present invention is that it can be used from a capillary column to a large processing apparatus, and harmful dioxin or
- PCB poly (biphenyl chloride)
- a porous epoxy resin resin porous material that is a separation medium capable of mass processing with low back pressure
- the present inventors have prepared a homogeneous mixed solution by dissolving an epoxy resin having a specific molecular structure and a curing agent in a porogen at a specific ratio.
- the polymer is then reacted by heating to cause spinodal decomposition of the polymer and porogen, and the co-continuous structure becomes unstable due to the growth of phase separation, and the polymer is cross-linked three-dimensionally before changing to a particle aggregate structure.
- the network is a three-dimensional epoxy resin cured product It was found that a non-particle agglomerated porous body having a branched structural force can be obtained.
- the present inventors have found that the obtained epoxy resin cured porous material is a separation medium exhibiting high molecular recognition for an organic compound having a planar structure, and has completed the present invention. .
- this invention is the epoxy resin hardened
- cured material porous body which has a structure as described below
- the monolith type separation medium which consists of this porous body, and its manufacturing method.
- the ratio of carbon atoms derived from the aromatic ring to the total carbon atoms constituting the epoxy resin-cured cured product is from 0.10 to 0.65, and the porosity of the porous body is 20%.
- the porous body characterized in that it is ⁇ 80% and the average pore diameter is 0.5 ⁇ m to 50 ⁇ m.
- the porous epoxy resin cured product is in the form of a sheet, rod, or cylinder
- the porous body according to any one of (1) to (3) above.
- the epoxy resin and the curing agent are a combination of an aromatic epoxy resin and a non-aromatic hardener, or a combination of a non-aromatic epoxy resin and an aromatic curing agent.
- the epoxy resin and the curing agent are a combination of an aromatic epoxy resin and an alicyclic amine, or a combination of an alicyclic epoxy resin and an aromatic amine.
- the epoxy resin hardened material porous body obtained by the present invention is useful as a monolithic separation medium made of a polymer having a planar structure and excellent in molecular recognition.
- the epoxy resin cured product porous body obtained by the present invention is particularly suitable for water treatment on a large scale, and can be treated in a large amount at a lower pressure. Further, for example, contaminants generated by sludge treatment, etc. Dioxin and PCB with planar molecular structure can be selectively removed from water containing quality.
- the epoxy resin cured product porous body obtained by the present invention has various functional groups on the polymer surface and can be easily subjected to surface modification, etc., and thus is useful as a characteristic separation-purification medium substrate. For example, it can be used for protein and enzyme separation, pharmaceutical purification, and the like.
- a porous epoxy resin cured product of the present invention in which a columnar epoxy resin cured product forms a three-dimensional branched structure is formed by a specific combination of an epoxy resin and a curing agent used as a raw material.
- the combination of the epoxy resin and the curing agent is a combination of an aromatic epoxy resin and a non-aromatic curing agent, particularly a cycloaliphatic amine curing agent, or a non-aromatic epoxy resin.
- the aliphatic epoxy resin is an aliphatic amine. It is suitable for use as a separation medium, in which the heat resistance of the cured product is higher than when the is used.
- one type of epoxy resin and one type of curing agent are used, but two or more types may be mixed.
- the epoxy resin and the curing agent is composed of a mixture of aromatic and non-aromatic, the resulting porous body has a non-particle aggregated network structure and particle aggregates. It is not preferable immediately because it becomes a mixed porous body.
- aromatic epoxy resins containing aromatic ring-derived carbon atoms include bisphenol A type epoxy resins, brominated bisphenol A type epoxy resins, and bisphenols.
- Polyoxyl-based resins such as Poxy resin, Tetrakis (hydroxyphenol) ethane base, Poxy resin, Full-lens-containing epoxy resin, Triglycidyl isocyanurate, Triazine ring-containing epoxy resin, etc. Examples include fats.
- bisphenol A type epoxy resin brominated bisphenol A type epoxy resin, bisphenol F type epoxy resin, bisphenol AD type epoxy resin, fluorene-containing epoxy resin, triglycidyl iso Bisphenol A type epoxy resin, brominated bisphenol A type epoxy resin, bisphenol F type epoxy resin having an epoxy equivalent of 500 or less and a melting point of 100 ° C or less.
- non-aromatic epoxy resin containing no aromatic ring-derived carbon atom examples include aliphatic daricidyl ether type epoxy resin, aliphatic glycidyl ester type epoxy resin, alicyclic glycidyl ether type epoxy resin.
- examples include alicyclic glycidyl ester type epoxy resin.
- alicyclic glycidyl ether type epoxy resins and alicyclic glycidyl ester type epoxy resins, and particularly preferred are alicyclic glycidyl ether type epoxy resins having an epoxy equivalent of 500 or less and a melting point of 100 ° C or less. It is rosin, an alicyclic glycidyl ester type epoxy rosin.
- examples of the aromatic curing agent containing an aromatic ring-derived carbon atom include metaphenylenediamine, diaminodiphenylmethane, diaminodiphenylsulfone, benzyldimethylamine, and dimethyl.
- Aromatic amines such as aminomethylbenzene, aromatic acid anhydrides such as phthalic anhydride, trimellitic anhydride, pyromellitic anhydride, heteroaromatic rings such as phenolic resin, phenol novolac resin, and triazine ring Amins are listed.
- Preferred are aromatic amine compounds having two or more primary amines in the molecule, and particularly preferred are meta-phenylenediamine, diaminodiphenylmethane, and diaminodiphenylsulfone.
- Non-aromatic curing agents that do not contain an aromatic ring-derived carbon atom include ethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, iminobispropylamine, bis (hexamethylene) triamine, 1, 3, 6 Aliphatic amines such as trisaminomethylhexane, polymethylenediamine, trimethylhexamethylenediamine, polyetherdiamine, isophoronediamine, mentandiamine, N-aminoethylpiperazine, 3, 9-bis ( 3 Aminopropyl) 2, 4, 8, 10-Tetraoxaspiro (5, 5) undecane duct, bis (4-amino-3-methylcyclohexyl) methane, bis (4-aminocyclohexyl) methane N, alicyclic polyamines such as these modified products, and other polyamines and aliphatic polyamines that have dimer acidity And midamines.
- the porogen used in the present invention can dissolve an epoxy resin and a curing agent, Solvents that can cause reaction-induced phase separation after polymerization of epoxy resin and curing agent, such as cellosolves such as methyl solvate and cetyl sorb, ethylene glycol monomethyl ether acetate, propylene glycol Examples thereof include esters such as Nomonomonomethylol acetate, or glycols such as polyethylene glycol and polypropylene glycol.
- Solvents that can cause reaction-induced phase separation after polymerization of epoxy resin and curing agent such as cellosolves such as methyl solvate and cetyl sorb, ethylene glycol monomethyl ether acetate, propylene glycol
- esters such as Nomonomonomethylol acetate
- glycols such as polyethylene glycol and polypropylene glycol.
- polyethylene glycolol, methinoreserosonoleb, ethinoreserosonoleb, ethyleneglycololemonomethinoreethenorea cetate and propylene glycol monomethyl ether acetate having a molecular weight of 600 or less are particularly preferred.
- Glycol monomethyl ether acetate is preferred.
- a solvent that is insoluble or hardly soluble at room temperature with an individual epoxy resin or curing agent, but becomes soluble by adducting the epoxy resin and curing agent can also be used as a porogen.
- porogen include brominated bisphenol A type epoxy resin (trade name “Epicoat 5058” manufactured by Japan Epoxy Resin Co., Ltd.).
- the epoxy resin is prepared so that the ratio of carbon atoms derived from the aromatic ring to the total carbon atoms constituting the porous epoxy resin cured product is in the range of 0.10 to 0.65. It is necessary to determine the type and amount of fat and hardener.
- the proportion of carbon atoms derived from the aromatic ring is less than 0.10 of the total number of carbon atoms, the planar medium structure recognizability of the separation medium using the porous material is lowered. Moreover, when the ratio of carbon atoms derived from aromatic rings to the total carbon atoms exceeds 0.65, a non-particle-aggregated cured porous material that also has a three-dimensional branched network skeleton force of a columnar epoxy resin cured product is obtained. It becomes difficult.
- the addition ratio of the epoxy resin and the curing agent is within a range satisfying the above-mentioned ratio of carbon atoms derived from the aromatic ring occupying all the carbon atoms, with respect to 1 equivalent of epoxy group
- the curing agent equivalent is preferably adjusted to be in the range of 0.6 to 1.5.
- the curing agent equivalent ratio is less than 0.6, the crosslink density of the cured product becomes low, and the heat resistance, solvent resistance, etc. may decrease.
- it exceeds 1.5 the number of unreacted functional groups increases, which is not preferable because it remains unreacted in the cured product or hinders the improvement of the crosslinking density.
- the epoxy resin hardened material porous body of the present invention comprises a mixture of an epoxy resin and a curing agent. These are non-reactive and soluble in porogens that can be dissolved at room temperature or by heating, polymerized by heating, and after phase separation of the polymer and porogen carpinodal phase, phase separation progresses and a co-continuous structure is formed. Before it disappears, it is produced by freezing and fixing the structure by a cross-linking reaction and then removing the porogen.
- a curing accelerator it may be effective to add a curing accelerator if the desired porous structure cannot be obtained.
- a well-known thing can be used as a hardening accelerator. Examples include tertiary amines such as triethylamine and tributylamine, and imidazoles such as 2-phenol-4-methylimidazole, 2-ethyl-4-methylimidazole, 2-phenol-4,5-dihydroxymethylimidazole, and the like. .
- the polymerization is completed in 120 minutes at the latest from the start of polymerization to the freezing of the structure.
- the polymerization temperature is set based on these conditions, which are preferably within 30 minutes from cloud point generation due to phase separation to freezing of the structure due to three-dimensional crosslinking.
- the curing agent equivalent is in the range of 0.6 to 1.5 with respect to 1 equivalent of epoxy group.
- the pulverized resin is poured into a porogen heated to 100 ° C or lower and dissolved, and then a curing agent is added and dissolved, and immediately heated to a predetermined polymerization temperature. Polymerization is performed. When the polymerization proceeds and the polymer component increases after heat polymerization, spinodal phase separation occurs and a co-continuous structure develops, but the phase separation further proceeds and before the co-continuous structure disappears, By proceeding with the crosslinking reaction, the structure is frozen and fixed, and a desired three-dimensional network structure is obtained.
- the electron and the amount of porogen are changed by changing the type and amount of the curing agent (including the curing accelerator if necessary) and the amount of porogen. While checking the structure with a microscope, etc., the optimum temperature profile is determined and controlled. Specific conditions are described in the examples described later.
- the porogen used is a low-boiling solvent
- a method such as after-curing after replacing with a high-boiling solvent is employed. If a porous body with insufficient crosslinking is used as a liquid chromatographic separation medium, the number of theoretical plates decreases, and therefore sufficient crosslinking reaction must be performed.
- the porosity of the epoxy resin cured product porous body according to the present invention needs to be 20% to 80%. If it is less than 20%, when the cured product is used as a separation medium, the porosity is too low to increase the transmittance, which is not practical. If it exceeds 80%, the strength of the porous body will decrease.
- the porous epoxy resin cured product of the present invention has an average pore size of 0.5 ⁇ m or more and 50 ⁇ m or less. If it is less than 0.5 m, the pressure during liquid feeding will be high, and if it exceeds 50 m, the strength of the porous material will decrease. When using contaminated water containing insoluble matter such as sludge together with a small amount of planar molecular structure compound, use a porous material with an average pore size of ⁇ m or more to prevent clogging. It is preferable to do this.
- the porous cured epoxy resin of the present invention preferably has a logarithmic distribution width at the height of 1Z4 of the maximum value of the differential pore distribution measured by the mercury intrusion method of 0.7 or less.
- the logarithmic distribution width at the height of 1Z4, the maximum value of the differential pore distribution is an index indicating the spread of the pore distribution
- the logarithmic distribution width at the height of 1Z4, the maximum value of the pore distribution is the logarithm. Is displayed.
- the logarithmic distribution width at the maximum height of 1Z4 exceeds 0.7, the number of theoretical plates as a separation medium tends to decrease.
- the porosity, pore size, pore size distribution, etc. of the porous body vary depending on the type and ratio of raw materials such as epoxy resin, epoxy curing agent, porogen, etc., or reaction conditions such as temperature, stirring, and pressure. Therefore, in order to obtain the porosity, pore diameter, and pore diameter as the target porous body, it is preferable to create a phase diagram of the system and select optimum conditions. Phase separation changes with time. To fix the co-continuous structure of rosin and porogen in a specific state and form a stable porous structure, the molecular weight, molecular weight distribution, In general, the viscosity of the system, the crosslinking reaction rate and the like are strictly controlled.
- the epoxy resin hardened material porous body of the present invention can take an arbitrary shape such as a sheet shape, a rod shape, or a cylindrical shape, and can be selectively used depending on the application. Also liquid black As a packing medium for a column for matography, a column force with a large diameter can be used up to a single force ram.
- the separation factor ⁇ ⁇ / ⁇ represented by ⁇ Z ⁇ ⁇ in the present application can be used as an index.
- the separation medium according to the present invention has a flat surface recognition property specific to an organic compound having a flat structure, and a in the column may show 2 or more without specific surface modification.
- the porous body is a cured epoxy resin, it has a functional group on the surface and can be subjected to surface modification according to the purpose by graft reaction or the like.
- the porous epoxy resin cured product according to the present invention is three-dimensionally cross-linked and is excellent in chemical resistance and heat resistance, so that it can be used in harsh environments.
- a cross-sectional photograph of the porous body was taken with a scanning electron microscope, and the porous structure was observed.
- the content of carbon atoms derived from aromatic rings in all carbon atoms was determined by solid-state 13 C-NMR. Epoxy resin hardened material is pulverized, put into MAS probe, and DSX400 device (Bruker) is used, DD / MAS method (dipole decaying & magic angle spinning), pulse width 5.0 ⁇ 860 ( ⁇ 90 ° pulse ).
- the content of carbon atoms derived from aromatic rings in all carbon atoms is the peak integral value A of chemical shift 90 to 2 lOppm derived from aromatic rings and the peak integral of chemical shift 10 to 90 ppm derived from saturated carbon. From value B to Therefore it is required.
- the porosity of the porous body is calculated by the following formula.
- V Apparent volume of porous material (cm 3 )
- the true density of the resin is a value measured in accordance with JIS-K7 112 (Method B I) after putting the porous body in ethanol and degassing.
- the pore size distribution and average pore size of the porous material were measured by an auto pore type 9220 manufactured by Shimadzu Corporation by the mercury intrusion method.
- the maximum differential pore distribution that gives the height of 1Z4 the maximum value of the differential pore distribution obtained by first-ordering the accumulated pore volume curve with respect to the measured pore diameter.
- the average pore diameter the median diameter under the condition of an initial pressure of 20 kPa was used.
- a 11.8 mm (inner diameter) x 12.4 mm (outer diameter) HPLC column was prepared using the porous epoxy resin hardened material prepared, using a acetonitrile / water mixture solvent as the mobile phase, and a flow rate of lmlZ.
- HPLC measurement of triphenylene and o-terferol was carried out to determine the respective distribution coefficients (,), and then the separation coefficient ⁇ expressed by the ratio
- Epoxy rosin Z porogen solution and curing agent Z porogen solution heated to 60 ° C, vacuum defoamed, mixed with a mixer, poured into a 20 mm diameter mold heated to 120 ° C, and held as it was for lOhr . After cooling, the cured product was taken out, immersed in ethanol at 60 ° C for 20 hours to remove porogen, and post-cured at 160 ° C for 5 hours.
- the aromatic epoxy-derived carbon atom content ratio, porosity, average pore size, and logarithm at the height of 1Z4 of the maximum differential pore distribution measured by the mercury intrusion method Table 1 shows the distribution width.
- This porous body was cut into a cylindrical shape having a diameter of 12 mm and a thickness of 2 mm to obtain a distribution coefficient measurement column.
- Table 1 shows the measurement results for the partition coefficient of o-tert-phenyl and triphenylene.
- Fig. 1 shows a scanning electron micrograph of this porous material. From the photograph, this porous body is a three-dimensional network structure porous body having an epoxy resin cured product as a skeleton, and the three-dimensional network structure porous material has the three-dimensional branching structural force of the columnar epoxy resin cured product.
- Non-particle agglomerated porous material o
- the epoxy resin hardened material porous body was prepared in the same manner as in Example 1, and the maximum value of the differential pore distribution measured by aromatic carbon content, porosity, average pore diameter, and mercury intrusion method.
- Table 1 shows the logarithmic distribution width at 1Z4 height and the distribution coefficient measurement results.
- Bisphenol A type epoxy resin (made by Japan Epoxy Resin Co., Ltd., trade name “Epicote 828”) 1 lg and hydrogenated bisphenol A type epoxy resin (made by Dainippon Ink & Chemicals, Inc., trade name) “Epiclone 7015”) l lg was dissolved in 36 g of methoxymonopropylene glycol acetate (manufactured by Daicel Chemical Industries, Ltd.) to obtain an epoxy resin Z porogen solution.
- Bisphenoxyethanol fluorene glycidyl ether (Osaka Gas Chemical Co., Ltd., trade name “BPEF—G”) 24 g was dissolved in polyethylene glycol # 200 (Nacalai Testa Co., Ltd.) 3 5 g, and epoxy resin Z porogen It was set as the solution.
- 6 g of bis (4-aminocyclohexyl) methane (manufactured by Shin Nippon Rika Co., Ltd., trade name “Wandamine HM”) was dissolved in 35 g of polyethylene glycol # 200 to obtain a hardener Z porogen solution.
- a cured epoxy resin porous material is prepared in the same manner as in Example 1, and the aromatic content-derived carbon atom content ratio, porosity, average pore size, and maximum differential pore distribution measured by the mercury intrusion method are as follows.
- Table 1 shows the measurement results of logarithmic distribution width and distribution coefficient at the height of 1Z4.
- Epoxy rosin Z porogen solution and curing agent Z porogen solution heated to 60 ° C, vacuum defoamed, mixed with a mixer, poured into a 20 mm diameter mold heated to 160 ° C, and held as it was for lOhr . After cooling, the cured product was taken out, immersed in ethanol at 60 ° C for 20 hours to remove porogen, and post-cured at 160 ° C for 5 hours.
- the aromatic epoxy-derived carbon atom content ratio, porosity, average pore diameter, and differential pore distribution measured by mercury porosimetry in the obtained epoxy resin hardened porous material logarithmic distribution at the height of 1Z4 Table 1 shows the measurement results of width and distribution coefficient. A scanning electron micrograph of this porous material is shown in FIG.
- This porous body The three-dimensional network structure porous body having the same epoxy resin cured product as in Example 1 as a skeleton, and the three-dimensional network structure porous body has a non-dimensional structure having a three-dimensional branched structure force of the columnar epoxy resin cured product. It was a particle aggregation type porous body.
- the epoxy resin cured product porous body was prepared in the same manner as in Example 1, and the measurement results of the aromatic carbon-derived content ratio and the porosity are shown in Table 1, but the obtained molded product is transparent.
- the average pore size the logarithmic distribution width at the height of 1Z4 of the maximum value of the differential pore distribution measured by the mercury intrusion method, and the distribution coefficient, we were unable to obtain clear measurement results.
- a cured epoxy resin resin porous material was prepared in the same manner as in Example 1, and the aromatic content-derived carbon atom content ratio, porosity, average pore size, and maximum differential pore distribution measured by the mercury intrusion method were used.
- the results of the logarithmic distribution width measured at the height of 1 Z4 are shown in Table 1.
- the obtained product was in the form of powder, and the partition coefficient was too strong to create a column.
- Example 1 Example 2
- Example 3 Example 4 Carbon atom content ratio derived from an aromatic ring
- Example 5 Comparative Example 1 Comparative Example 2 Comparative Example 3 Carbon atom content ratio derived from an aromatic ring
- the epoxy resin hardened material porous body obtained by the present invention is useful as a monolithic separation medium made of a polymer having a planar structure and excellent in molecular recognition.
- the epoxy resin cured product porous body obtained by the present invention is particularly suitable for water treatment on a large scale, and can be treated in a large amount at a lower pressure. Further, for example, contaminants generated by sludge treatment, etc. Dioxin and PCB with planar molecular structure can be selectively removed from water containing quality.
- the epoxy resin hardened material porous body obtained by the present invention has its polymer. Since it has various functional groups on one surface and surface modification can be easily performed, it is useful as a characteristic separation-purification medium substrate, and can be used for separation of proteins and enzymes, purification of pharmaceuticals, and the like.
- FIG. 1 is a photograph of a magnification of 5000 times taken by a scanning electron microscope of a cross section of a porous epoxy resin-cured material obtained in Example 1.
- FIG. 2 is a photograph of a cross section of the porous epoxy resin cured product obtained in Example 5 at a magnification of 500 using a scanning electron microscope.
- FIG. 3 is a photograph of the cross section of the porous epoxy resin cured material obtained in Comparative Example 3 at a magnification of 1000 using a scanning electron microscope.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Manufacturing & Machinery (AREA)
- Analytical Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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EP06702050A EP1837365A4 (en) | 2005-01-07 | 2006-01-06 | CURED POROUS EPOXY RESIN |
JP2006550904A JP5153142B2 (ja) | 2005-01-07 | 2006-01-06 | エポキシ樹脂硬化物多孔体 |
US11/794,698 US8186519B2 (en) | 2005-01-07 | 2006-01-06 | Porous cured epoxy resin |
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JP2005002550 | 2005-01-07 | ||
JP2005-002550 | 2005-01-07 |
Publications (1)
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WO2006073173A1 true WO2006073173A1 (ja) | 2006-07-13 |
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PCT/JP2006/300069 WO2006073173A1 (ja) | 2005-01-07 | 2006-01-06 | エポキシ樹脂硬化物多孔体 |
Country Status (4)
Country | Link |
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US (1) | US8186519B2 (ja) |
EP (1) | EP1837365A4 (ja) |
JP (1) | JP5153142B2 (ja) |
WO (1) | WO2006073173A1 (ja) |
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Also Published As
Publication number | Publication date |
---|---|
EP1837365A4 (en) | 2011-04-20 |
JPWO2006073173A1 (ja) | 2008-06-12 |
US20080210626A1 (en) | 2008-09-04 |
JP5153142B2 (ja) | 2013-02-27 |
EP1837365A1 (en) | 2007-09-26 |
US8186519B2 (en) | 2012-05-29 |
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