WO2016008072A1 - 一类dopo衍生物、其制备方法及应用 - Google Patents
一类dopo衍生物、其制备方法及应用 Download PDFInfo
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- WO2016008072A1 WO2016008072A1 PCT/CN2014/082155 CN2014082155W WO2016008072A1 WO 2016008072 A1 WO2016008072 A1 WO 2016008072A1 CN 2014082155 W CN2014082155 W CN 2014082155W WO 2016008072 A1 WO2016008072 A1 WO 2016008072A1
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- ACVYVLVWPXVTIT-UHFFFAOYSA-M phosphinate Chemical compound [O-][PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-M 0.000 description 1
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 description 1
- 238000001394 phosphorus-31 nuclear magnetic resonance spectrum Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 238000012643 polycondensation polymerization Methods 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002215 polytrimethylene terephthalate Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- KRIOVPPHQSLHCZ-UHFFFAOYSA-N propiophenone Chemical compound CCC(=O)C1=CC=CC=C1 KRIOVPPHQSLHCZ-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000003373 pyrazinyl group Chemical group 0.000 description 1
- 125000003226 pyrazolyl group Chemical group 0.000 description 1
- 125000004076 pyridyl group Chemical group 0.000 description 1
- 125000000714 pyrimidinyl group Chemical group 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 125000002294 quinazolinyl group Chemical group N1=C(N=CC2=CC=CC=C12)* 0.000 description 1
- 125000005493 quinolyl group Chemical group 0.000 description 1
- 125000001567 quinoxalinyl group Chemical group N1=C(C=NC2=CC=CC=C12)* 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000000967 suction filtration Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 125000000335 thiazolyl group Chemical group 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
- C07F9/6564—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms
- C07F9/6571—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms having phosphorus and oxygen atoms as the only ring hetero atoms
- C07F9/6574—Esters of oxyacids of phosphorus
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/53—Phosphorus bound to oxygen bound to oxygen and to carbon only
- C08K5/5313—Phosphinic compounds, e.g. R2=P(:O)OR'
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
Definitions
- the present application relates to a halogen-free flame retardant and a preparation process thereof.
- phosphorus-based flame retardants are most attractive for their high efficiency, civilization and environmental friendliness.
- existing phosphorus-based flame retardants have disadvantages such as high volatility, low heat resistance, strong plasticity and/or poor chemical stability, and are limited by the processing and application fields of polymer materials.
- His current research focuses on the development of phosphorus-based flame retardants with high thermal stability and chemical stability and low volatility.
- dialkyl phosphinates especially aluminum diethylphosphinate
- dialkyl phosphinates are used as flame retardants for nylons and polyesters, see U.S. Patent 4,036,811.
- dialkyl phosphinates are corrosive and their corrosivity is particularly severe at high temperatures.
- aluminum dialkyl phosphinate is a solid, It will cause a decrease in the flow properties of the product and affect the fabrication of complex devices.
- Phosphonates especially cyclic phosphonates, have also been reported as flame retardants.
- WO2010135398 reports a derivative of 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) which contains two phosphorus centers (DiDOPO) in one molecule and has good Thermal stability and flame retardancy, but structurally limited to the vinyl bridge chain (-CH2CH2-) between the two phosphorus centers.
- DOPO 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide
- -CH2CH2- vinyl bridge chain
- the above DiDOPO-based flame retardant is prepared by a Michaelis-Becker reaction of DOPO and a dihalogenated alkane under a strong base, which requires not only an expensive strong base but also a low yield.
- Japanese Laid-Open Patent No. JPH11-106619 reports the derivative of DOPO, DiDOPO, which does not mention an aromatic-substituted vinyl bridge and is limited to polyester fibers. These DiDOPOs are prepared by the Michaelis-Becker reaction of DOPO and dihaloalkanes under the action of a strong base.
- Japanese laid-open patent JP2001270993 describes a derivative of DOPO, DiDOPO, which does not describe an aromatic-substituted vinyl bridge in the DiDOPO bridge chain.
- the example shown in this patent application contains DiDOPO longer than the vinyl bridge chain. The too long link leads to an increase in the plasticizing properties of DiDOPO, which causes a decrease in the heat distortion temperature of the engineering plastic article.
- the examples shown in this patent application also include hydroxy or alkoxy substituted bridges.
- the introduction of hydroxyl groups reduces the thermal stability of the flame retardant and is detrimental to the processing of engineering plastics.
- the introduction of alkoxy groups increases the oxidizing properties and leads to early degradation of the polymer material.
- An object of the present invention is to provide a halogen-free flame retardant based on a DOPO-based compound which not only has a good flame retarding effect but also has high thermal stability and chemical stability. It can overcome the shortcomings of the existing chemical resistance of DiDOPO and strong plasticity. Summary of the invention
- Ar is optionally selected from a heteroaryl group of C3 C18 or an aryl group of C6 C18;
- R 3 , R 4 , R 5 and R 6 are independently selected from hydrogen, C1-C18 alkyl, C3 C18 heteroaryl, C6-C18 aryl;
- n, k and p are independently selected from 0, 1, 2, 3, 4;
- Any hydrogen atom on the aryl or heteroaryl aromatic ring may be independently substituted with any C1-C18 alkyl group.
- R 2 is an aryl group
- R 2 is an alkyl group
- the aryl group and the heteroaryl group are arbitrarily lost in the aromatic compound molecule A group formed after a hydrogen atom.
- the group formed is an aryl group; when the aromatic ring contains a hetero atom such as N, 0, S or the like, the group formed is a heteroaryl group.
- the aromatic compound forming an aryl group or a heteroaryl group may have no substituent or a substituent on the aromatic ring, and a typical substituent such as an alkyl group, a carboxyl group, a hydroxyl group, a halogen group or the like.
- the heteroaryl group of C3 C18 is a group formed by an aromatic compound molecule having a heterocyclic ring having 3 to 18 carbon atoms and having an arbitrary hydrogen atom lost on the aromatic ring.
- C3-C18 means that the number of carbon atoms in the heterocyclic aromatic ring in the heteroaryl group is from 3 to 18.
- the heterocyclic aromatic ring is an aromatic ring containing a hetero atom such as N, 0 or S.
- An aromatic compound containing a heterocyclic aromatic ring which comprises a fused ring aromatic ring compound formed by a heterocyclic ring and a benzene ring, such as benzofuran, a group formed by the loss of any one of the hydrogen atoms on the benzene ring or the furan ring, all of which are heteroaryl base.
- the aryl group of C6 C18 is a group formed by an aromatic compound having an aromatic ring having 6 to 18 carbon atoms and containing no hetero atom in the aromatic ring, and having any hydrogen atom lost on the aromatic ring.
- C6 C18 means that the number of carbon atoms in the aromatic ring containing no hetero atom in the aryl group is 6-18.
- An aromatic compound which does not contain a hetero atom aromatic ring means that a conjugated aromatic ring system does not contain a hetero atom such as N, 0 or S.
- the alkyl group of C1 C18 is a linear alkyl group having 1 to 18 carbon atoms, a branched alkyl group having 1 to 18 carbon atoms or an alkyl group having an aromatic ring.
- the aromatic ring-containing alkyl group is an aromatic compound having an alkyl substituent on the aromatic ring, and a group formed by losing any hydrogen atom on the alkyl group in the molecule.
- the alkyl group is a saturated hydrocarbon group, that is, a hydrocarbon group in which an alkane molecule loses one hydrogen atom, and includes a linear alkyl group and a branched alkyl group.
- the alkyl group is selected from the group consisting of methyl, ethyl, propyl, butyl, isopropyl, t-butyl, isobutyl, pentyl or hexyl.
- the aromatic ring may be a monocyclic aromatic ring, a polycyclic aromatic ring or a fused ring aromatic ring.
- the monocyclic aromatic ring may be a benzene ring or a five- or six-membered heterocyclic ring containing a hetero atom such as N, 0 or S.
- the polycyclic aromatic ring which contains a plurality of benzene rings and/or heterocyclic rings, and between the benzene ring and the benzene ring, between the benzene ring and the hetero ring, and between the hetero ring and the hetero ring, does not share a carbon atom, such as Benzene ring.
- the fused ring aromatic ring contains a plurality of benzene rings and/or heterocyclic rings, and a common carbon atom exists between the benzene ring and the benzene ring, between the benzene ring and the hetero ring, and between the hetero ring and the hetero ring.
- common heteroaryl groups are furyl, benzofuranyl, isobenzofuranyl, pyrrolyl, decyl, isodecyl, thienyl, benzo[b]thienyl, benzene.
- Common aryl groups are phenyl, naphthyl, anthracenyl, phenanthryl.
- the heteroaryl group is selected from a furyl group, a benzofuranyl group; the aryl group is selected from the group consisting of phenyl, naphthyl, anthracenyl, fluorenyl, methylphenyl, ethylphenyl, propyl Phenyl, butylphenyl, dimethylphenyl, isopropylphenyl, isobutylphenyl or tert-butylphenyl.
- the structural formula of the compound is selected from one of the formula (2), the formula (3), the formula (4), the formula (5), the formula (6), and the formula (7).
- the present application also provides a method for preparing the above compound, characterized in that an aryl ketone and a DOPO compound are reacted under the action of an acidic catalyst;
- aryl ketone is one or more selected from the group consisting of compounds having the formula (8) Formula (8)
- the DOPO-based compound any one selected from the group consisting of compounds having the formula (9); — H
- Ar is optionally selected from a C3 to C18 heteroaryl group or a C6 to C18 aryl group; and independently selected from hydrogen, a C1 C18 alkyl group, a C3 C18 heteroaryl group, and a C6 C18 aromatic group.
- q and j are independently selected from 0, 1, 2, 3, 4; any hydrogen atom on the aryl or heteroaryl aromatic ring may be independently substituted with any C1-C18 alkyl group.
- the aryl ketone is selected from the group consisting of acetophenone, 2-naphthylethyl ketone, furan ethyl ketone, 1-naphthyl ethyl ketone, propiophenone, acetophenone, acetophenone, and phenyl benzyl ketone.
- acetophenone 2-naphthylethyl ketone
- furan ethyl ketone furan ethyl ketone
- 1-naphthyl ethyl ketone propiophenone
- acetophenone acetophenone
- acetophenone acetophenone
- phenyl benzyl ketone phenyl benzyl ketone
- the acidic catalyst contains hydrogen chloride and/or hydrogen bromide, or contains a substance capable of generating hydrogen chloride and/or hydrogen bromide in the presence of a hydroxyl group, or contains hydrogen chloride and/or bromine in the presence of water. Hydrogen substance.
- the acidic catalyst contains any one or a mixture of any of hydrogen chloride, hydrogen bromide, phosphorus trichloride, and phosphorus oxychloride.
- the reaction temperature is 0 to 250 ° C, and a further preferred reaction temperature is 80 to 200 ° C.
- the reaction rate is slow; when the temperature is higher than 250 ° C, the by-products are greatly increased.
- the reaction can be carried out under normal pressure, positive pressure or under negative pressure.
- the DOPO-based compound, the aryl ketone and the acidic catalyst may be mixed in any order, or all or part of any two may be mixed first, and then the remaining portion and the third component may be added.
- the DOPO and the aryl ketone are first mixed, and then the acidic catalyst is slowly added dropwise.
- reaction system contains an inert solvent.
- the inert solvent is selected from one or more of cyclohexane, methylcyclohexane, toluene, benzene, xylene, hexane, heptane, octane, cumene, t-butylbenzene.
- cyclohexane methylcyclohexane
- toluene benzene
- xylene hexane
- heptane octane
- cumene t-butylbenzene
- DOPO chemical name is 9,10-dihydro-9-oxa-10-phosphaphenanthrene- 10-oxide.
- the DOPO-like compounds described herein comprise DOPO and DOPO derivatives.
- the DOPO derivative refers to a benzene ring in the chemical structural formula of DOPO, and a hydrogen atom is substituted by another substituent, and a common substituent is a methyl group, an ethyl group, an isopropyl group, a t-butyl group, a chloro group or the like.
- the present application also provides a flame retardant comprising any of the above compounds and/or a compound prepared according to any of the above methods.
- the flame retardant further contains a mixture of one or more selected from the group consisting of melamine polyphosphate, melamine cyanurate, aluminum diethylphosphinate or ammonium polyphosphate.
- the flame retardant further contains an additive; the additive includes a stabilizer, a processing aid, an anti-drip agent, a pigment, a dye, a carbon-forming catalyst, a dispersant, a nucleating agent and the like.
- the present application also provides a flame retardant material characterized by containing any of the above compounds and/or a compound prepared according to any of the above methods. A person skilled in the art can select a compound of a specific structure among the compounds of the formula according to the actual application, according to the field to which the material is to be applied and the requirements for the properties of the material.
- the present application also provides a flame-retardant polymer material comprising any of the above compounds and/or a compound obtained by any of the above methods.
- the weight of the compound of the formula (1) is 1% to 40% by weight, preferably 3 to 30%, and further preferably 5 ⁇ 25%.
- the polymer material is a thermoplastic resin or a thermosetting resin.
- thermoplastic polymer resin molecules have no chemical bond between them, and have properties of heat softening and cooling hardening.
- thermoplastic polymers are formed by extrusion and injection molding, but are not limited to these two processes.
- the thermoplastic resin is selected from the group consisting of polyethylene, polypropylene, polystyrene, high impact polystyrene, polyamide, polyester, polycarbonate, acrylonitrile-butadiene-styrene copolymer (ABS) And a mixture of one or more of the polyethers.
- a polyamide is a polymer containing -NH-C (0 amide group) in its structural unit, and its typical preparation method includes condensation or ring-opening polymerization of a dicarboxylic acid and a diamine or an amino acid or a lactam. synthesis.
- the thermoplastic resin is selected from the group consisting of a copolymer of polyamide 6 and polyamide 66, a mixture of one or more of polyamide 6, polyamide 66.
- a polyester is a polymer having a -0-C (0 ester bond) in its structural unit, and its typical preparation includes a condensation reaction of a dicarboxylic acid and a glycol.
- the thermoplastic resin is selected from a mixture of one or more of polybutylene terephthalate, polyethylene terephthalate, and polytrimethylene terephthalate.
- a thermosetting resin is a polymer having chemical bonds between molecules. The thermosetting resin is formed after heating or after radical or photoinitiation or after a chemical reaction, and then no longer softens the flow and does not dissolve the resin after being heated.
- thermosetting polymer resin is selected from one or a mixture of an epoxy resin, a polyurethane, and an unsaturated resin.
- thermosetting polymer resin is a bisphenol A type epoxy resin and/or a phenol type epoxy resin.
- beneficial effects of the technical solution described in the present application are:
- the compound described in the present invention has a bridge structure between two DOPO-based compounds which is an aryl group-containing vinyl group. Since the bridge chain is short, the compound molecule has rigidity, and plasticity is largely avoided.
- the aryl group on the vinyl adds steric hindrance, which not only greatly increases its chemical stability, Moreover, the volatility of the compound is lowered, thereby overcoming the deficiency of the known DiDOPO-based flame retardant.
- Figure 1 is a nuclear magnetic resonance spectrum of the product of Example 1.
- Figure 2 is a nuclear magnetic resonance spectrum of the product of Example 1.
- Figure 3 is a nuclear magnetic resonance spectrum of the product of Example 2.
- Figure 4 is a nuclear magnetic resonance spectrum of the product of Example 2. detailed description
- DOPO (86.40 g, 0.40 mol), acetophenone (24.05 g, 0.20 mol) and 10 ml of xylene were placed in a three-necked flask equipped with a thermometer, a water separator, a magnetic stir bar and a constant pressure funnel. Under a nitrogen atmosphere, the mixture was heated to 154 ° C and phosphorus oxychloride was added dropwise. P0C1 3 (30.25 g) was slowly added dropwise to the reaction solution over 25 hours, and the fraction was collected in a water separator to maintain the reaction temperature at 154-160 °C. After dropping the phosphorus oxychloride, keep it for half an hour.
- DOPO (86.40 g, 0.40 mol) and naphthyl ethyl ketone (34.04 g, 0.20 mol) were placed in a three-necked flask equipped with a thermometer, a magnetic stirrer and a constant pressure funnel. Under a nitrogen atmosphere, the mixture was heated to 170 ° C and phosphorus oxychloride was added dropwise. P0C1 3 ( 15.96 g) was slowly added dropwise to the reaction solution over 20 hours while maintaining the reaction temperature at 170-180 °C. After dropping the phosphorus oxychloride, keep it for half an hour. The 31 P nuclear magnetic spectrum shows no raw materials.
- the obtained product was characterized by H-spectrum and P-spectroscopy on a magnetic resonance apparatus.
- the hydrogen spectrum is shown in Figure 4.
- the data is 1 H NMR (CDC1 3 ): 6.0-8.0 (multimodal, 23H), 3.6-3.8 (multimodal, 1H), 2.8-3.1 (multimodal, 2H).
- Example According to the production method in Example 1, phosphorus oxychloride was changed to S0 2 C1 2 (in an amount of 5% by mole of DOPO) to obtain a compound having the structure of the formula (2).
- the yield was 60.2%.
- DOPO (21.60 g, 0.10 mol) and phenylbenzyl ketone (9.81 g, 0.05 mol) were placed in a three-necked flask equipped with a thermometer, a water separator, a magnetic stirrer and a constant pressure funnel. Under a nitrogen atmosphere, the mixture was heated to 110 ° C, and a mixture of 4.74 g of phosphorus oxychloride and 20 ml of toluene was added dropwise. The temperature was slowly raised to 200 degrees over 7 hours while the fractions in the collection trap were returned to the reaction flask. The 31 P NMR spectrum shows no DOPO material.
- PC PC polycarbonate plastic raw material
- Ciba antioxidant 1010 main chemical composition is tetrakis[ ⁇ ,5-di-tert-butyl-4-hydroxyphenyl:) propionic acid] pentaerythritol ester
- the product obtained in Example 1 was mixed in a weight ratio of 58.2: 0.12: 1.8, and mixed in an internal mixer of 50 rpm.
- the temperature was set to 270 ° C, and after 5 minutes, it was taken out and cooled and dried. Then, it was filled in a mold, preheated for 10 minutes at a plate vulcanizer at 270 ° C, and kept cold for 4 minutes at 10 MPa.
- the flame retardant level is 3.2mm UL94 V.
- PC PC polycarbonate plastic raw material
- Ciba antioxidant 1010 main chemical composition is tetrakis[ ⁇ ,5-di-tert-butyl-4-hydroxyphenyl:)propionic acid] pentaerythritol ester
- the product obtained in Example 2 was mixed in a weight ratio of 58.0:0.12:2.0, and mixed in an internal mixer at a number of revolutions of 50 rpm.
- the temperature was set to 270 ° C, and after 5 minutes, it was taken out and cooled and dried. Then, it was filled in a mold, preheated for 10 minutes at a plate vulcanizer at 270 ° C, and kept cold for 4 minutes at 10 MPa.
- the burning level is 3.2mm UL94 V implementation column 10
- DICY (dicyandiamide) was dissolved in DMF (dimethylformamide) to prepare a solution having a mass fraction of 10%, and then 8.61 g of the product obtained in Example 1 and 39.23 g of bisphenol A epoxy resin were dissolved.
- the above DMF at 60 ° C was stirred and mixed to obtain an epoxy resin composition.
- the resulting temperature The hot varnish was impregnated with a glass fiber cloth (7628, 0.18 mm) and dried in an oven at 150 ° C for 5 minutes to prepare a prepreg. Finally, eight semi-prepregs were overlapped, heated at 175 ° C under a pressure of 25 kg/cm 3 , and pressurized for 90 min to obtain a copper clad laminate substrate.
- the substrate After flame retardant testing, the substrate has a flame resistance of UL 94 V-0.
- the present invention is disclosed in the above preferred embodiments, but is not intended to limit the scope of the invention, and the invention may be made without departing from the spirit and scope of the invention. The scope of protection should be determined by the scope defined by the claims of the present invention.
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Abstract
本申请涉及一种可用作新型无卤阻燃剂的化合物,由芳基酮和DOPO类化合物在酸性催化剂作用下制得。该化合物不仅阻燃效果良好,且具有良好的热稳定性和化学稳定性。
Description
一类 DOPO衍生物、 其制备方法及应用
技术领域
本申请涉及一种无卤阻燃剂及其制备工艺。 背景技术
高分子材料广泛用于电子电器, 汽车, 建筑, 纺织等行业。 但由于高分 子材料具有可燃性,实际使用时需要添加阻燃剂,以达到防火安全的要求。 传统上, 高分子材料中通常要添加溴系阻燃剂, 以实现阻燃效果。 但溴系 阻燃剂在燃烧的时候, 会产生强烈剌激性的溴化氢气体、 浓烟、 甚至一些 强烈致癌性物质, 使得溴系阻燃剂的使用受到了限制。 欧盟更是制定了法 律和法规譬如 REACH和 RoHS, 限制某些溴系阻燃剂的使用, 因此工业界 开始转向无卤阻燃剂。
在无卤阻燃剂方面, 磷系阻燃剂以其高效、 对人类和环境友好而最受人 注目。 但已有的磷系阻燃剂存在着挥发性高, 耐热性低, 塑化性强和 /或化 学稳定性差等缺点, 而受到了高分子材料加工和应用领域的限制。 目前对 其研究主要集中在发展具有高度热稳定性和化学稳定性以及低挥发性的磷 系阻燃剂上。
由于含磷 -碳键的化合物具有良好的热稳定性和化学稳定性,膦酸盐类无 卤阻燃剂得到了应用。 譬如二烷基次膦酸盐特别是二乙基次膦酸铝被用作 尼龙和聚酯的阻燃剂, 见美国专利 US4036811。 但二烷基次膦酸盐具有腐 蚀性,它们的腐蚀性在高温情况下尤其严重。另外二烷基次膦酸铝是固体,
会引起制品流动性能的降低, 影响复杂器件的制作。
膦酸酯类特别是环状膦酸酯类也被报道作为阻燃剂。 WO2010135398报 道了 9, 10-二氢 -9-氧杂 -10-磷杂菲 -10-氧化物 (DOPO) 的衍生物, 该衍生 物一个分子中含有 2个磷中心 (DiDOPO), 具有良好的热稳定性和阻燃性, 但结构上仅限于 2个磷中心之间的乙烯基桥链 (-CH2CH2- )。 US8536256 描述了具有不同桥链的 DiDOPO作为环氧树脂的阻燃剂, 该专利申请不包 括芳基取代的乙烯基桥链。
上述 DiDOPO类阻燃剂, 通过 DOPO和二卤代烷烃在强碱作用下的 Michaelis-Becker反应制备, 不仅需要昂贵的强碱, 而且产率较低。
日本公开专利 JPH11-106619报道了 DOPO的衍生物 DiDOPO, 该专利 申请没有提到芳香基取代的乙烯基桥链,且仅限应用于聚酯纤维。 该些 DiDOPO通过 DOPO和二卤代烷烃在强碱作用下的 Michaelis-Becker反应制 备。
日本公开专利 JP2001270993描述了 DOPO的衍生物 DiDOPO, 该专利 申请中的 DiDOPO桥链没有描述芳香基取代的乙烯基桥链。 该专利申请中 显示的例子含有长于乙烯基桥链的 DiDOPO, 链接太长导致 DiDOPO的塑 化性能增加, 引起工程塑料制品热变形温度的下降。 该专利申请中显示的 例子也包括了羟基或烷氧基取代的桥链。 羟基的引入降低了阻燃剂的热稳 定性, 对工程塑料的加工不利。 烷氧基的引入则增加了被氧化性能, 会导 致高分子材料的提早降解。
本发明的一个目的在于提供一种基于 DOPO类化合物的无卤阻燃剂,该 无卤阻燃剂不仅阻燃效果良好, 而且具有很高的热稳定性和化学稳定性,
能克服已有 DiDOPO耐化学性不足和塑化性强的缺点。 发明内容
为解决上述问题, 本申请提供一种化合物, 其特征在于, 具有如式 (1) 所示的化学结构式:
其中
Ar任选自 C3 C18的杂芳基或 C6 C18的芳基;
和 独立地任选自氢、 C1 C18的烷基、 C3 C18的杂芳基、 C6 C18 的芳基;
R3, R4, R5和 R6独立地任选自氢、 C1-C18的烷基、 C3 C18的杂芳基、 C6-C18的芳基;
m, n, k和 p独立地任选自 0, 1, 2, 3, 4;
所述芳基或杂芳基芳香环上的任意氢原子可以独立被任意 C1-C18的烷 基取代。
优选地, 和1 2均为氢, m=n=k=p=0。
优选地, 为氢, R2为芳基, m=n=k=p=0。
优选地, 为氢, R2为烷基, m=n=k=p=0。
本申请中, 所述芳基和杂芳基为芳香族化合物分子中失去芳香环上任意
一个氢原子后形成的基团。 当芳香环上不包含 N、 0、 S等杂原子时, 形成 的基团为芳基; 当芳香环上包含N、 0、 S等杂原子时, 形成的基团为杂芳 基。 形成芳基或杂芳基的芳香族化合物, 芳香环上可以没有取代基也可以 有取代基, 典型的取代基如烷基、 羧基、 羟基、 卤代基等。
本申请中, 所述 C3 C18的杂芳基是含有碳原子数为 3~18杂环芳香环 的芳香族化合物分子中, 芳香环上失去任意一个氢原子后形成的基团。 C3-C18 指的是杂芳基中杂环芳香环上的碳原子数为 3~18。 杂环芳香环为 含有 N、 0、 S等杂原子的芳香环。 含有杂环芳香环的芳香族化合物, 包含 杂环与苯环形成的稠环芳香环化合物, 如苯并呋喃, 其苯环或者呋喃环上 失去任意一个氢原子形成的基团, 均为杂芳基。
本申请中, 所述 C6 C18的芳基是芳香环碳原子数为 6~18且芳香环上 不含有杂原子的芳香族化合物分子中, 芳香环上失去任意一个氢原子后形 成的基团。 C6 C18指的是芳基中不含杂原子的芳香环上的碳原子数为 6~18。 不含有杂原子芳香环的芳香族化合物,指共轭的芳香环体系中,不包含 N、 0、 S等杂原子。
所述 C1 C18的烷基为碳原子数为 1~18的直链烷基、 碳原子数为 1~18 的带有支链的烷基或者含有芳香环的烷基。 所述含有芳香环的烷基, 为芳 香环上存在烷基取代基的芳香族化合物, 分子中失去烷基上任意一个氢原 子后形成的基团。
优选地,所述烷基为饱和烃基,即烷烃分子失去一个氢原子而成的烃基, 包含直链烷基和带有支链的烷基。 进一步优选的, 所述烷基任选自甲基、 乙基、 丙基、 丁基、 异丙基、 叔丁基、 异丁基、 戊基或己基。
本申请中,所述芳香环可以为单环芳香环、多环芳香环或者稠环芳香环。 其中, 所述单环芳香环可以为苯环, 也可以为含有 N、 0、 S等杂原子的五 元或者六元杂环。 所述多环芳香环, 含有多个苯环和 /或杂环, 且苯环与苯 环之间、 苯环与杂环之间、 杂环与杂环之间, 不共用碳原子, 如联苯环。 所述稠环芳香环, 含有多个苯环和 /或杂环, 且苯环与苯环之间、 苯环与杂 环之间、 杂环与杂环之间, 存在共用的碳原子, 如萘环、 苯并呋喃环等。
根据本领域公知常识, 常见的杂芳基有呋喃基、 苯并呋喃基、 异苯并呋 喃基、 吡咯基、 吲哚基、 异吲哚基、 噻吩基、 苯并 [b]噻吩基、 苯并 [c]噻吩 基、 咪唑基、 苯并咪唑基、 嘌呤基、 吡唑基、 吲唑基、 恶唑基、 苯并恶唑 基、 异恶唑基、 苯并异恶唑基、 噻唑基、 苯并噻唑基、 吡啶基、 喹啉基、 异喹啉基、 吡嗪基、 喹喔啉基、 吖啶基、 嘧啶基、 喹唑啉基、 哒嗪基、 酞 嗪基和噌啉基。 常见的芳基有苯基、 萘基、 蒽基、 菲基。
优选地,所述杂芳基任选自呋喃基、苯并呋喃基;所述芳基任选自苯基、 萘基、 茚基、 芴基、 甲基苯基、 乙基苯基、 丙基苯基、 丁基苯基、 二甲基 苯基、 异丙基苯基、 异丁基苯基或叔丁基苯基。
本申请还提供了上述化合物的制备方法,其特征在于,将芳基酮和 DOPO 化合物在酸性催化剂作用下反应;
所述 DOPO类化合物, 任选自具有式 (9) 结构式的化合物中的 几种;
— H
ί '
式 (9)
式(8) 中, Ar任选自 C3~C18的杂芳基或 C6~C18的芳基; 和 独 立地任选自氢、 C1 C18的烷基、 C3 C18的杂芳基、 C6 C18的芳基; 式(9) 中, 17和 独立地任选自氢、 C1 C18的烷基、 C3 C18的杂芳 基、 C6 C18的芳基;
q和 j独立地任选自 0, 1, 2, 3, 4; 所述芳基或杂芳基芳香环上的任意氢原子可以独立被任意 C1-C18的烷 基取代。
优选地, 所述芳基酮任选自苯乙酮、 2-萘乙酮、 呋喃乙酮、 1-萘乙酮、 苯丙酮、 茚乙酮、 芴乙酮、 和苯基苄基酮中的一种或多种。
优选地, 所述酸性催化剂含有氯化氢和 /或溴化氢, 或者含有在羟基存在 条件下能够产生氯化氢和 /或溴化氢的物质, 或者含有在水存在条件下能够 产生氯化氢和 /或溴化氢的物质。
优选地, 所述酸性催化剂含有氯化氢、 溴化氢、 三氯化磷、 三氯氧磷中 的任意一种或任意几种的混合物。
优选地, 反应温度为 0~250°C, 进一步优选的反应温度为 80~200°C。 温 度低于 0°C, 反应速度缓慢; 温度高于 250°C, 副产物大量增多。
反应可以在常压、 正压或负压条件下进行。
优选地, 所述 DOPO类化合物、芳基酮和酸性催化剂的摩尔比为 DOPO 类化合物:芳基酮:酸性催化剂 =5~1:1:0.02~10;进一步优选的范围为 DOPO
类化合物: 芳基酮: 酸性催化剂的摩尔比 =3~1: 1:0.1~10; 更进一步优选的 范围为 DOPO类化合物: 芳基酮: 酸性催化剂的摩尔比 =2.5~1: 1:0.1~0.9; 其中, 催化剂的摩尔数以催化剂中所含氯元素和 /或溴元素的摩尔数计。
其中, DOPO类化合物、 芳基酮和酸性催化剂可以以任意次序混合, 也 可以先混合任意两个的全部或部分, 然后加入剩余部分和第三组分。 优选 地, 先混合 DOPO和芳基酮, 然后慢慢滴加酸性催化剂。
可选择地, 反应体系中含有惰性溶剂。
优选地,所述惰性溶剂任选自环己烷、 甲基环己烷、 甲苯、苯、二甲苯、 己烷、 庚烷、 辛烷、 异丙苯、 叔丁基苯中的一种或几种。
DOPO类化合物和芳基酮的反应机理如下:
DOPO类化合物进攻芳香基酮的羰基, 产生 α-ΟΗ膦酸酯, 羟基随即被 亲核的氯化氢或溴化氢取代产生水和 α-氯代或溴代膦酸酯, 后者通过消除 反应重新生成氯化氢或溴化氢以及含 C=C的取代乙烯基膦酸酯, 随后第二 分子 DOPO类化合物加成到 C=C上, 生成具有式 (1 ) 结构式的化合物。
根据本领域公知常识, DOPO 化学名称为 9,10-二氢 -9-氧杂 -10-磷杂菲 - 10-氧化物。本申请所述 DOPO类化合物包含 DOPO和 DOPO衍生物。 DOPO 衍生物指 DOPO化学结构式中的苯环上, 有氢原子被其他取代基取代, 常 见的取代基有甲基、 乙基、 异丙基、 叔丁基、 氯代基等。 本申请还提供一种阻燃剂, 其特征在于,含有上述任一化合物和 /或根据 上述任一方法制得的化合物。 本领域技术人员可以根据实际需要, 在本申 请所述的化合物中,添加其他的阻燃剂或者助剂,以达到更好的阻燃效果。
优选地, 所述阻燃剂中还含有选自三聚氰胺聚磷酸盐、 三聚氰胺氰脲酸 盐、 二乙基次膦酸铝或聚磷酸铵中的一种或几种的混合物。
优选地, 所述阻燃剂中还含有添加剂; 所述添加剂包括稳定剂、 加工助 剂、 抗滴落剂、 颜料、 染料、 成炭催化剂、 分散剂、 成核剂等。 本申请还提供一种阻燃材料, 其特征在于,含有上述任一化合物和 /或根 据上述任一方法制得的化合物。 本领域技术人员可以根据实际需要, 按照 材料所要应用的领域以及对材料性能的要求, 在符合式 结构式的化合物 中选择某一特定结构的化合物。 本申请还提供一种阻燃高分子材料, 其特征在于, 含有上述任一化合物 和 /或根据上述任一方法制得的化合物。
优选地, 所述阻燃高分子材料中, 符合式 (1)结构式化合物的重量占阻燃 高分子材料总重量的 1~40%, 优选的范围是 3~30%, 进一步优选的范围是 5~25%。
优选地, 所述高分子材料为热塑性树脂或热固性树脂。
根据本领域公知常识, 热塑性高分子树脂分子之间没有化学键连接, 具 有受热软化、 冷却硬化的性能。 通常热塑性高分子通过挤出和注塑成形, 但不局限于这两种工艺。
优选地, 所述热塑性树脂任选自聚乙烯、 聚丙烯、 聚苯乙烯、 高抗冲聚 苯乙烯、 聚酰胺、 聚酯、 聚碳酸酯、 丙烯腈-丁二烯-苯乙烯共聚物 (ABS)和 聚醚中的一种或者几种的混合物。
根据本领域公知常识, 聚酰胺是其结构单元中含 -NH-C(0 酰胺基的高 分子, 其典型制备方法包括二元羧酸和二元胺或者氨基酸或者内酰胺的缩 合或开环聚合合成。
优选地, 所述热塑性树脂任选自聚酰胺 6与聚酰胺 66的共聚物、 聚酰 胺 6、 聚酰胺 66中的一种或几种的混合物。
根据本领域公知常识, 聚酯是其结构单元中含 -0-C(0 酯键的高分子, 其典型制备包括二元羧酸和二元醇的缩合反应。
优选地, 所述热塑性树脂任选自聚对苯二甲酸丁二酯、 聚对苯二甲酸乙 二酯、 聚对苯二甲酸丙二酯中的一种或几种的混合物。 根据本领域公知常识, 热固性树脂为分子之间有化学键连接的高分子。 热固性树脂在加热后或自由基引发或光引发后或化学反应后成形, 再受热 之后不再软化流动, 也不溶解的树脂。
优选地, 所述热固性高分子树脂任选自环氧树脂、 聚氨酯和不饱和树脂 中的一种或者几种的混合物。
优选地, 所述热固性高分子树脂为双酚 A型环氧树脂和 /或酚醛型环氧 树脂。 本申请所述技术方案的有益效果为:
本申请所述的化合物,其连接两个 DOPO类化合物之间的桥链结构是含 有芳基的乙烯基, 由于桥链短, 所述化合物分子具有刚性, 极大避免了塑 化性。 乙烯基上的芳基增加了空间位阻, 不仅大幅增加了其化学稳定性,
而且降低了化合物挥发性, 从而克服了已知 DiDOPO类阻燃剂的不足。 应理解, 在本申请披露的技术方案范围内, 本申请的上述各技术特征和 在下文 (如实施例)中具体描述的各技术特征之间都可以互相组合,从而构成 新的或优选的技术方案。 限于篇幅, 在此不再一一累述。
除非另行定义, 文中所使用的所有专业与科学用语与本领域熟练人员所 熟悉的意义相同。 此外, 任何与所记载内容相似或均等的方法及材料皆可 应用于本申请方法中。 文中所述的较佳实施方法与材料仅作示范之用。 附图说明
图 1为实施例 1产物的核磁共振磷谱。
图 2为实施例 1产物的核磁共振氢谱。
图 3为实施例 2产物的核磁共振磷谱。
图 4为实施例 2产物的核磁共振氢谱。 具体实施方式
本申请提到的上述特征, 或实施例提到的特征可以任意组合。 本案说明书 所揭示的所有特征可与任何组合物形式并用, 说明书中所揭示的各个特征, 可以被任何提供相同、 均等或相似目的的替代性特征取代。 因此除有特别 说明, 所揭示的特征仅为均等或相似特征的一般性例子。
下面结合实施例, 进一步阐述本发明。 应理解, 这些实施例仅用于说明本 发明而不用于限制本发明的范围。 下列实施例中未注明具体条件的实验方
法, 通常按照常规条件或按照制造厂商所建议的条件。 除非另外说明, 否 则百分比和份数按重量计算。
未做特殊说明的情况下, 本申请所使用原料, 均通过商业途径购买, 不经 特殊处理直接使用。
未做特殊说明的情况下, 本申请使用 Bruker 400MHz AVANCE III型磁共 振仪器上对实施例中所得产品进行 iH-NM 和 31P-NM 表征。 磷谱表征条 件为氢去耦, 预延期 Dl = 10秒, 扫描次数大于 16次, 溶剂 CDC13, 使用 85%磷酸做定位标样。
实施例中, 产率的计算方法为: (产物重量 /产物理论重量) χ100%。 其中产 物理论重量是基于原料中芳基酮的量计算得到。 实施例 1具有式 (2)结构化合物的制备
DOPO (86.40 g, 0.40 mol), 苯乙酮 (24.05 g, 0.20 mol) 和 10毫升二甲 苯加入到装有温度计, 分水器, 磁搅拌子和恒压漏斗的三口烧瓶中。 在氮 气保护下, 混合液加热到 154°C, 开始滴加三氯氧磷。 P0C13 (30.25 g)在 25 小时内慢慢滴加到反应液中, 在分水器中收集馏分, 保持反应温度在 154-160°C。 滴完三氯氧磷后, 保温半小时。 冷却, 加入 120 g异丙醇, 回 流下搅拌, 粗产物软化后大部分溶解, 体系浑浊。 停止搅拌、 冷却, 静置 一段时间后产物大量析出。 抽滤, 固体产物先用少量异丙醇洗涤, 收集滤 液, 再用适量去离子水洗涤三次, 产物为白色固体粉末, 收集后 110°C下干 燥 13 h, 得到 89g产物, 产率为 83.2%。
在磁共振仪器上对所得产品进行 H谱和 P谱的表征, 其磷谱详见图 1, 数
据为 31PNM (85%H3P04 =0 ppm): 34.2-37.0 ppm (多峰); 其氢谱详见 图 2, 数据为1 HNM (CDC13, TMS ): 6.2-8.0(多峰, 21H), 3.3-3.8 (多峰, 1Η), 2.5-3.0 (多峰, 2H 实施例 具有式 结构化合物的制备
DOPO (86.40 g, 0.40 mol) 和萘乙酮 (34.04g, 0.20 mol) 加入到装有温度 计,磁搅拌子和恒压漏斗的三口烧瓶中。在氮气保护下,混合液加热到 170°C, 开始滴加三氯氧磷。 P0C13 ( 15.96 g) 在 20小时内慢慢滴加到反应液中, 保持反应温度在 170-180度。 滴完三氯氧磷后, 保温半小时。 31P核磁谱图 显示无原料。 冷却, 加 50ml 90%的乙醇溶解, 然后滴加约 60ml 2.5%的 Na2C03溶液将反应液 pH调至 6~7, 回流半小时后抽滤得白色固体产物。产 率 70.6%
在磁共振仪器上对所得产品进行 H谱和 P谱的表征, 其磷谱详见图 3, 数 据为 31PNM (85%H3P04 =0 ppm): 34.0-37.0 ppm (多峰); 其氢谱详见 图 4, 数据为1 HNMR (CDC13 ): 6.0-8.0(多峰, 23H), 3.6-3.8 (多峰, 1H), 2.8-3.1 (多峰, 2H)。 实施例
按照实施例 1中的制备方法, 将三氯氧磷改成 13.7克的三氯化磷, 得到具 有式 (2)结构的化合物。 产率 75.8%。
实施例
按照实施例 1中的制备方法, 将三氯氧磷改成 S02C12 (用量为 DOPO摩尔 量的 5%), 得到具有式 (2)结构的化合物。 产率 60.2%。
实施例 5
按照实施例 1中的制备方法,将三氯氧磷改成浓盐酸(氯化氢用量为 DOPO 摩尔量的 10倍), 得到具有式2)结构的化合物。 产率 55.3%。
实施例 ό
按照实施例 1 中的制备方法, 但将三氯氧磷改成三溴化磷 (用量为 DOPO 摩尔量的 30%, 得到具有式2)结构的化合物。 产率 91.0%。
实施例 7具有式 (7)结构化合物的制备
DOPO (21.60 g, 0.10 mol) 和苯基苄基酮 (9.81g, 0.05 mol) 加入到装有 温度计, 分水器, 磁搅拌子和恒压漏斗的三口烧瓶中。 在氮气保护下, 混 合液加热到 110°C, 开始滴加 4.74克三氯氧磷和 20毫升甲苯的混合液。 在 7小时内慢慢升高温度至 200度, 同时收集分水器中的馏分回滴到反应 瓶中。 31P核磁谱图显示无 DOPO原料。 冷却, 加 50ml 90%的乙醇溶解, 然后滴加约 2.5%的 Na2C03溶液将反应液 pH调至 6~7, 回流半小时后抽滤 得白色固体产物。 产率 60.0%。
31PNM (85%H3P04 =0 pm): 35.1, 36.2 pm (2个峰); 1HNM (CDC13): 6.1-7.9(多峰, 26H), 4.18 ( 1H) , 4.13(1H)。
实施例 8
将美国 GE 141 PC聚碳酸酯塑胶原料 (简称 PC)、 汽巴抗氧剂 1010 (主 要化学成份为四 [βρ,5-二叔丁基 -4-羟基苯基:)丙酸]季戊四醇酯)、 实施例 1 所得产物, 按照 58.2: 0.12: 1.8的重量比例混合, 在转速为 50转 /分钟的 密炼机中混合, 设置温度为 270°C, 5分钟后取出冷却、 干燥。 然后将其填 充于模具中, 在 270°C的平板硫化机预热 10分钟, lOMPa保压 4分钟后, 冷压。 按照国家燃烧测试标准 GB/T 2408-2008 测试, 阻燃级别为 3.2mm UL94 V 实施例 9
将美国 GE 141R PC聚碳酸酯塑胶原料 (简称 PC)、 汽巴抗氧剂 1010 (主 要化学成份为四 [βρ,5-二叔丁基 -4-羟基苯基:)丙酸]季戊四醇酯)、 实施例 2 所得产物, 按照 58.0: 0.12: 2.0的重量比例混合, 在转速为 50转 /分钟的 密炼机中混合, 设置温度为 270°C, 5分钟后取出冷却、 干燥。 然后将其填 充于模具中, 在 270°C的平板硫化机预热 10分钟, lOMPa保压 4分钟后, 冷压。按照国家燃烧测试标准 GB/T 2408-2008测试,燃级别为 3.2mm UL94 V 实施列 10
将 2.16g DICY (双氰胺) 溶于 DMF (二甲基甲酰胺), 配制成质量分数为 10%的溶液, 然后将 8.61g实施例 1 所得产物和 39.23g双酚 A环氧树脂溶 于 60°C下的上述 DMF 中, 搅拌混合后得到环氧树脂组合物。 将所得的温
热清漆浸渍玻璃纤维布(7628, 0.18mm), 在 150°C的烘箱内干燥 5min, 制 得预浸渍件。 最后将 8片半预浸渍件重叠, 在 175 °C, 25Kg/cm3的压力下 加热,加压 90min,得到覆铜板基板。经阻燃测试,该基板的耐燃性达 UL 94 V-0级别。 本发明虽然以较佳实施例公开如上, 但并不是用来限定权利要求, 任何本 领域技术人员在不脱离本发明构思的前提下, 都可以做出若干可能的变动 和修改, 因此本发明的保护范围应当以本发明权利要求所界定的范围为准。
Claims
1、 一种化合物, 其特征在于, 具有如式 (1)所示的化学结构式:
其中
Ar任选自 C3 C18的杂芳基或 C6 C18的芳基;
和 独立地任选自氢、 C1 C18的烷基、 C3 C18的杂芳基、 C6 C18的 芳基;
R3, R4, R5和 R6独立地任选自氢、 C1 C18 的烷基、 C3 C18 的杂芳基、 C6-C18的芳基;
m, n, k和 p独立地任选自 0, 1, 2, 3, 4;
所述芳基或杂芳基芳香环上的任意氢原子可以独立被任意 C1-C18 的烷基 取代。
2、根据权利要求 1所述的化合物,其特征在于,所述杂芳基任选自呋喃基、 苯并呋喃基; 所述芳基任选自苯基、 萘基、 茚基、 芴基、 甲基苯基、 乙基 苯基、 丙基苯基、 丁基苯基、 二甲基苯基、 异丙基苯基、 异丁基苯基或叔 丁基苯基。
3、 根据权利要求 1所述的化合物, 其特征在于, 所述化合物的结构式任选 自式 (2)、 式 (3)、 式 (4)、 式 (5)、 式 (6)和式 (7)中的一种:
4、 制备权利要求 1所述化合物的方法, 其特征在于, 将芳基酮和 DOPO类 化合物在酸性催化剂作用下反应;
所述 DOPO类化合物, 任选自具有式 (: 结构式的化合物中的一种或几种;
、j#''、β—- 式 (9 )
式 (8)中, Ar任选自 C3 C18的杂芳基或 C6 C18的芳基; 和 独立地任 选自氢、 C1 C18的烷基、 C3 C18的杂芳基、 C6 C18的芳基;
式 (9)中, 1 7和 R8独立地任选自氢、 C1 C18的烷基、 C3 C18的杂芳基、 C6-C18的芳基;
q和 j独立地任选自 0, 1, 2, 3, 4;
所述芳基或杂芳基芳香环上的任意氢原子可以独立被任意 C1-C18 的烷基 取代。
5、 根据权利要求 4所述的方法, 其特征在于, 所述酸性催化剂含有氯化氢 和 /或溴化氢, 或者含有在羟基存在条件下能够产生氯化氢和 /或溴化氢的物 质; 优选的酸性催化剂含有氯化氢、 溴化氢、 三氯化磷、 三氯氧磷中的任 意一种或任意几种的混合物; 反应温度为 0~250°C; 优选 80~200°C。
6、 根据权利要求 4所述的方法, 其特征在于, 所述 DOPO类化合物、 芳基 酮和酸性催化剂的摩尔比为 DOPO 类化合物: 芳基酮: 酸性催化剂 =5-1:1:0.02-10; 优选的范围为 DOPO 类化合物: 芳基酮: 酸性催化剂
剂 =2.5~1 : 1 :0.1~0.9; 其中, 酸性催化剂的摩尔数以催化剂中所含氯元素和 / 或溴元素的摩尔数计。
7、 根据权利要求 4所述的方法, 其特征在于, 反应体系中含有惰性溶剂; 所述惰性溶剂任选自环己烷、 甲基环己烷、 甲苯、 苯、 二甲苯、 己烷、 庚 烷、 辛烷、 异丙苯、 叔丁基苯中的一种或几种。
8、 一种阻燃剂, 其特征在于, 含有权利要求 1-3所述任一化合物和 /或根据 权利要求 4-7所述任一方法制得的化合物。
9、 一种阻燃材料, 其特征在于, 含有权利要求 1-3所述任一化合物和 /或根 据权利要求 4-7所述任一方法制得的化合物。
10、 一种阻燃高分子材料, 其特征在于, 含有权利要求 1-3所述任一化合物 和 /或根据权利要求 4-7所述任一方法制得的化合物; 权利要求 1-3所述任 一化合物的重量和 /或根据权利要求 4-7所述任一方法制得的化合物的重量, 占阻燃高分子材料总重量的 1~40%, 优选的范围为 3~30%, 进一步优选的 范围为 5~25%; 所述高分子材料为热塑性树脂或热固性树脂。
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