CN101704950A - PASSI terpolymer and preparation method thereof - Google Patents
PASSI terpolymer and preparation method thereof Download PDFInfo
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- CN101704950A CN101704950A CN200910153735A CN200910153735A CN101704950A CN 101704950 A CN101704950 A CN 101704950A CN 200910153735 A CN200910153735 A CN 200910153735A CN 200910153735 A CN200910153735 A CN 200910153735A CN 101704950 A CN101704950 A CN 101704950A
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Abstract
The invention discloses a PASSI terpolymer and a preparation method thereof. The invention is characterized in that sulphur, disubstituted phthalimide, disubstituted sulphone, reducing agent and reaction aid in a reactor filled with solvent, heating for reaction for certain time, pouring reaction liquid into precipitating agent, stirring and filtering, desalting and filter cake and residual solvent to obtain the PASSI terpolymer. Compared with the prior art, the invention has the advantages that the obtained product has good thermal stability (e.g. fluidity, mechanical property and heat resistance), lower fusion viscosity, wider processing window and excellent processing performance; meanwhile, the introduction of sulphur and sulphone containing structure can further reduce preparation cost of polyimide polymer.
Description
Technical field
The present invention relates to a kind of PASSI polymkeric substance, belong to polymer industrial technology field, the invention still further relates to the preparation method of this PASSI polymkeric substance.
Background technology
Polythioetherimide is incorporated in the inflexible polyimide main chain owing to the thioether bond flexible unit, this base polymer is except having good thermomechanical property, having also that solvability is good, melt viscosity is low and the characteristics of melt-processable, is a kind of very promising thermoplasticity heat-proof macromolecule material.Be subjected to the concern of some research institutions with the synthetic Polythioetherimide of traditional method, and the pertinent literature report has been arranged, such as: U.S. Pat 3989712, US4054584, US4092297, US4499285 and US4625037.
China's documents and materials have in this respect reported mainly that as CN1038676C, CN1724528A chlorine (perhaps nitro) replaces phthalic anhydride through protection, coupling; hydrolysis; acidifying becomes series of steps sulfide synthesis dianhydrides such as acid anhydride, and then and diamines generation polyimide.
Because above-mentioned reactions steps is loaded down with trivial details, people have has developed some two methods that replace the direct postcure thing of phthalimide coupling synthesis of polyimides, such as U.S. Pat 4092297 and document Poly Bull 1995,34,287-294.In order further to improve the synthetic method of polyimide, the applicant has also done a little researchs, and research contents can be with reference to CN101392055A and CN101463132A.
Although Polythioetherimide has such as above-mentioned advantage, to compare with traditional polymer, its higher cost and narrow process window have limited it and have used widely.For reducing cost, following a kind of preparation method is disclosed, see that the patent No. is ZL02104269.1 Chinese invention patent " preparation method of dichlorophthalein imide and two chloro benzophenones or dichloro diphenyl sulfone multipolymer " (Granted publication number: CN1171930C), to replace phthalimides and dichloro diphenyl sulfone or two chloro benzophenones be the coupling agent copolymerization with sodium sulphite to this patent with two, but because the easy oxidation of sodium sulphite, be difficult to when polymerization to realize polycondensation etc. mol ratio, so its gained multipolymer viscosity and molecular weight are all lower, industrialization has little significance.
Summary of the invention
Technical problem to be solved by this invention is to provide the PASSI terpolymer that a kind of molecular weight is higher, melt viscosity is lower and have good over-all properties at the above-mentioned state of the art.
Another technical problem to be solved by this invention provides that a kind of molecular weight is higher, melt viscosity is lower and have the preparation method of the PASSI terpolymer of good over-all properties.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of PASSI terpolymer, and its general structure is as follows:
Wherein, m and n are respectively sulphur sulfone and the imido number of repeat unit of thioether, thioether bond in polymkeric substance the position on the phthalimide structural unit in the 3-position, or 4-position, A, R, R ' they are fragrance or fat group.
The used solvent of the present invention is dipolar aprotic solvent, benzene kind solvent and composition thereof.This suitable kind solvent comprises and singly is not limited to N, dinethylformamide, N,N-dimethylacetamide, N-N-methyl-2-2-pyrrolidone N-, N-N-methyl-2-2-pyrrolidone N-, dimethyl sulfoxide (DMSO), HMPA, sulfobenzide, N-ethyl hexanolactam, hexanolactam, tetramethyl-urea or tetramethylene sulfone etc. are material or its mixture similarly.Benzene kind solvent or refer to benzene,toluene,xylene, chlorobenzene, dichlorobenzene, toluene dichloride, phenyl ethyl ether, methyl-phenoxide, 1,2,4-trichlorobenzene and o-Xylol oxygen base benzene etc. are material or its mixture similarly.
The usage quantity of solvent of the present invention is a measurement standard with the solid content of institute's formation reaction liquid in theory.Solid content is defined as follows:
In polyreaction of the present invention, the reaction solution solid content is 0.1%～50%.
The substituting group ratio of two substituted imides of indication of the present invention be easier to take place nucleophilic substitution reaction by replace.Two substituted imides have structure as follows:
Wherein, A is an organic group, and X is fluorine, chlorine, bromine, iodine or nitro.The position of substituent X can be 3-position or 4-position, and wherein specified 3-position and 4-position are meant at the position of substitution that contains on the phthalimide ring.Two replacement phthalimides are synthetic by corresponding replacement phthalic anhydride and diamines.Diamines NH
2ANH
2In organic group A for replacing or unsubstituted fat or aromatic diamines, A can be selected from but be not limited to following at least a diamines: 1, the 2-hexanediamine, 1,6-hexanediamine, 1, the 6-cyclohexanediamine, Ursol D, mphenylenediamine, 4,4 '-benzidine, 3,3 '-dimethyl-4,4 '-benzidine, 2,2 '-dimethyl-4,4 '-benzidine, 4,4 '-diaminodiphenyl oxide, 3,4 '-diaminodiphenyl oxide, 4,4 '-diamino benzophenone, 3,4 '-diamino benzophenone, 4,4 '-diaminodiphenylsulfone(DDS), 3,4 '-diaminodiphenylsulfone(DDS), 4,4 '-diaminodiphenylmethane, 4, the different propane of 4 '-diamino-diphenyl, 4,4 '-diaminodiphenyl sulfide, 2,2 '-two chloro-4,4 '-diaminodiphenylmethane, 3,3 '-two chloro-4,4 '-diaminodiphenylmethane, 4,4 '-diamino-two phenoxy group-4 ", 4 " ' biphenyl, 4,4 '-diamino-two phenoxy group-4 ", 4 " ' phenyl ether, 4,4 '-diamino-two phenoxy group-4 ", 4 " ' sulfobenzide, 4,4 '-diamino-two phenoxy group-4 ", 4 " ' the different propane of phenylbenzene, 2,4-tolylene diamine, 5-methyl-4,6-diethyl-1, the 3-phenylenediamine, 3,3 '-dimethyl-4,4 '-diaminodiphenylmethane, or 2,2 ' 3,3 '-tetramethyl--4,4 '-diaminodiphenylmethane, or their mixture.Two replacement phthalimides can have corresponding replacement phthalic anhydride and corresponding diamine to reflux in glacial acetic acid, methyl-phenoxide, dimethylbenzene equal solvent to obtain; The purity of two replacement phthalimides should be can be to be used for polymerization more than 98%.In copolyreaction, two replacement phthalimides can be a kind of pure substances, also can be multiple two mixtures that replaces phthalimide.
Be applicable to that two sulfone that replaces of the present invention has the monomer of halogen or nitro substituent for those, described substituting group has reactive behavior, forms PASSI terpolymer easily.The two sulfones that replace that satisfy above-mentioned condition have following a few class:
1) have structure shown in (III),
Wherein, X
1Be fluorine, chlorine, bromine, iodine or nitro; M:H, SO
3Li, SO
3Na, SO
3K or SO
3H; Substituent X
1, M the position can be ortho position, a position and contraposition;
2) have structure shown in (IV):
Wherein, X
1Be fluorine, chlorine, bromine, iodine or nitro; M:H, SO
3Li, SO
3Na, SO
3K or SO
3H; Substituent X
1, M the position can be ortho position, a position and contraposition;
3) have structure shown in (V):
Wherein: M:H, SO
3Li, SO
3Na, SO
3K or SO
3H; Q is the group that is selected from down array structure:
The following group of R:
N is 1 to 6 integer, perhaps is no more than the straight chain or the branching aliphatics divalent group of six carbon atom;
In specific embodiment, two replacement sulfones comprise at least a dichloro diphenyl sulfone, difluorodiphenyl sulfone or diphenylsulfone dinitro. in other embodiment, two replacement sulfones comprise 4,4-dihalo diaryl sulfone and 4,4-dinitrobenzene diaryl sulfone, its exemplary example has 4,4-dichloro diphenylsulfone, 4,4-difluorodiphenyl base sulfone and 4,4-nitro sulfobenzide. in copolyreaction, two replacement sulfones can be a kind of pure substances, also can be multiple two mixtures that replaces sulfone.
The scope of the ratio of the amount of substance of two replacement phthalimides and two replacement sulfones is 99.9: 0.1～0.1: 99.9.In the embodiment, two replacement phthalimides and two ratio that replaces the amount of substance of sulfone are 50: 50.
With the amount of substance of sulphur be two replace phthalimides and two replace sulfones the two the amount of substance sum 70%～130%, be preferably 90%～110%.In a specific embodiment, the amount of substance of sulphur be two substituted monomers monomer mixture amount of substance 105%.In another embodiment, the amount of substance of sulphur be two substituted monomers monomer mixture amount of substance 95%.
The used reductive agent of the present invention is common reducing substance, such as formate; Oxalate; The aldehydes that comprises formaldehyde or acetaldehyde etc.; The hydrazine class that comprises phenylhydrazine or hydrazine hydrate etc.; Azanol; The metal simple-substance class that comprises iron powder, aluminium powder or zinc powder etc.; Ferrous salt, tin salt etc. have the salt of reducing power; The hydride that comprises sodium hydride, hydrolith, sodium borohydride or lithium aluminum hydride etc.; Ammonia; Hydrogen etc.; Or their mixture, the amount of substance consumption of these reductive agents is 0.2-6 times of corresponding sulphur amount of substance consumption.In one embodiment, reductive agent is a Paraformaldehyde 96, and consumption is 1.5 times of amount of substance of sulphur.In the another one embodiment, the reductive agent of use is a sodium hydride, and consumption is 2.5 times of amount of substance of sulphur.
Reaction promoter used in the present invention can be selected from following at least a: comprise Quilonum Retard, yellow soda ash, or the carbonate of salt of wormwood, the supercarbonate that comprises sodium bicarbonate or saleratus, the phosphoric acid salt that comprises sodium hydrogen phosphate or potassium hydrogen phosphate, the hydrophosphate that comprises phosphoric acid acid disodium hydrogen or dipotassium hydrogen phosphate, comprise potassium hydroxide, the alkali hydroxide of sodium hydroxide or lithium hydroxide, comprise calcium chloride, sodium-chlor, Repone K, lithiumbromide, Potassium monofluoride, or the halogenide of sodium iodide, comprise phase-transfer catalysts such as quaternary amine quaternary alkylphosphonium salt and crown ether, or their mixture, the amount of substance consumption of these reaction promoters is 0.02-3 times of corresponding sulphur amount of substance consumption.In a specific embodiments, the amount of reaction promoter is 1.2 times of sulphur.
Simultaneously, because raw material used in the present invention is a sulphur, so this polyreaction is not high to temperature requirement yet.Polyreaction of the present invention can be carried out in 60 ℃～300 ℃ temperature range.In one embodiment, temperature of reaction is 100 ℃.In another embodiment, polymeric reaction temperature is 180 ℃.
So the present invention can carry out under the protection of rare gas element.Inert atmosphere can be selected from but be not limited to nitrogen, argon gas etc.For the molecular weight of controlling final polymkeric substance or for other purposes, also can blanketing with inert gas.
The reaction mixture for preparing PASSI of the present invention can be chosen wantonly from least a chain terminator.Suitable chain terminator has active substituent including, but not limited to all those and is suitable in polymerization process by sulphur negative ion metathetical material.In each embodiment, suitable chain terminator is including, but not limited to having the material of following formula: B-R-M, and wherein B can be selected from but be not limited to comprise the halogen atom or the nitro of fluorine, chlorine or bromine atom; R is replacement or unsubstituted aryl group or alkyl, can be selected from but is not limited to following a kind of group: as phenyl, substituted-phenyl, xenyl, substituted biphenyl base, furyl, pyridyl, naphthyl, quinolyl, etc. similar group; M can be selected from but be not limited to more following atoms or group: as hydrogen, methyl, acyl group, phenyl acyl group, alkyl sulphonyl, aryl sulfonyl, nitre its, cyano group, azo-group, carboxyl, trifluoromethyl, imide or substituted imides base.
Concrete chain terminator can be 3-chloro-phenyl--tertiary butyl ketone, 3-fluorophenyl-tertiary butyl ketone, the 4-chloro benzophenone, 3-nitro benzophenone, 4-nitrophenyl methyl sulfone, the 4-fluorophenyl phenyl sulfone, the 2-iodonitrobenzene, 4-bromophenyl nitrogen benzide, 4-fluorine pyridine, the 3-chloro-benzoic acid, 1-nitro-4-trifluoromethylbenzene, 1-chloro-3-trifluoromethylbenzene, N-phenyl-3-chlorophthalimide, N-phenyl-4-fluorine phthalic imidine, N-methyl-3-chlorophthalimide, N-methyl-4-nitro phthalic imidine, N-butyl-3-chlorophthalimide, or N-cyclohexyl-4-chlorophthalimide or the like, perhaps aforesaid two or more mixtures.
Chain terminator can be chosen wantonly with any method easily and add in the described reaction mixture, for example to obtain required molecular weight.In specific embodiment, at least a chain terminator all once adds or any time in polymerization process adds in batches.At least a chain terminator can be chosen independent adding wantonly or to add with one or more monomeric form of mixtures.
After copolyreaction is finished, can adopt ordinary method to separate PASSI terpolymer.These methods can be including, but not limited to a step or multistep precipitation, filtration, washing or poach, Soxhlet extracting, drying etc.In certain embodiments, will comprise that the reaction mixture of PASSI terpolymer mixes with the non-solvent of PASSI terpolymer,, make described PASSI terpolymer precipitation such as water.In another embodiment, the separating step of described polymkeric substance comprises total devolatilization, for example carries out in degassing forcing machine.
Condition determination according to the limiting viscosity of the method disclosed in the present institute synthetic PASSI terpolymer is 30 ℃, and solvent is a meta-cresol, uses determination of ubbelohde viscometer.Use the method disclosed in the present, the limiting viscosity scope of PASSI terpolymer is 0.13dL/g～3.10dL/g.
Has thermal characteristics preferably according to the method disclosed in the present institute synthetic PASSI terpolymer, PASSI glass transition temperature Tg 〉=170 ℃, heat-drawn wire 〉=140 ℃, heat decomposition temperature 〉=400 ℃.In one embodiment, second-order transition temperature is 265 ℃, and heat-drawn wire is 243 ℃, and 5% thermal weight loss temperature is 521 ℃.
Another of PASSI terpolymer disclosed by the invention is characterised in that described multipolymer has lower melt viscosity.The condition determination of melt viscosity is 350 ℃, and shearing frequency is 1Hz.In one embodiment, the melt viscosity of PASSI terpolymer of the present invention is less than 5000 pascal seconds (Pas).In another embodiment, melt viscosity is less than about 2000 pascal seconds (Pas).In another embodiment, melt viscosity is about 10～1000 pascal seconds (Pas) or about 150～2500 pascal seconds (Pas).
Compared with prior art, the invention has the advantages that: the two phthalimides that replace of employing are raw material with two replacement sulfones, with sulphur is that coupling agent prepares, and products therefrom has higher molecular weight, good thermal stability (as flowability, mechanical property and thermotolerance), lower melt viscosity, the process window of broad and good processing characteristics; Simultaneously, owing to the introducing of sulfur-bearing sulfone structure, can further reduce the preparation cost of polyimide copolymer; Resulting polymers has suitable injection moulding processing, extrudes the characteristics of processing, mold pressing processing, solvent spinning and melt-spinning, in association areas such as resistant to elevated temperatures engineering plastics, film, tackiness agent, enameled wire, porous plastics, fiber and advanced composite materials good application prospects is arranged.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail.
Embodiment 1: add 5.29g (0.0lmol) 4 in the 250ml there-necked flask, 4 '-two (4-chloro imide) phenyl ether, 2.87g (0.01mol) 4 ' 4-dichloro diphenyl sulfone, 0.67g (0.021mol) sulphur, 5.67g (0.063) trioxymethylene, 1.68g sodium hydroxide, 0.25g calcium chloride, add 100mlN-methyl-2-pyrrolidone (solid content: 8%) after the logical nitrogen deoxygenation three times, be heated to 150 ℃ of reactions after 5 hours, added behind the 0.11g chlorobenzene reheat to 180 ℃ reaction behind the cool to room temperature 3 hours, the reaction solution cool to room temperature is carried out aftertreatment.
Reaction solution poured in the methyl alcohol lentamente stirred 2 hours, filter the back with water boil 1 hour, filter, with filter cake with filter paper packet, with the extracting 24 hours in apparatus,Soxhlet's of the mixing solutions of ethanol and acetone, then with resulting polymers 200 ℃ of bakings 48 hours in vacuum drying oven.
30 ℃ of limiting viscosities in meta-cresol of resulting polymers are 0.65dL/g, and second-order transition temperature (Tg) is 265 ℃. heat-drawn wire is 243 ℃, and 5% thermal weight loss temperature is that 521 ℃ of .350 ℃ of melt viscosities are 4000Pas. in air
Embodiment 2: add 54.85g (0.100mol) 3 in the 1000ml there-necked flask, 4 '-two (4-nitro imide) ditanes and 48.04g (0.100mol) 3, the mixture of 3 '-two (3-fluoro imide) biphenyl, 30.83g (0.100mol) 4,4 '-diphenylsulfone dinitro, 9.14g (0.285mol) sulphur, 21.56g (0.57mol) sodium borohydride, 41.46g salt of wormwood, 5.23g sodium iodide, add 4000ml dimethyl sulfoxide (DMSO) and 1000ml dimethylbenzene (solid content: 14%) after the logical argon gas deoxygenation three times, be heated to 180 ℃ of reactions after 20 hours, added behind the 3-nitro benzophenone reheat to 200 ℃ reaction behind the cool to room temperature 1 hour, the reaction solution cool to room temperature is carried out aftertreatment.
Reaction solution poured in the ethanol lentamente stirred 2 hours, filter the back with water boil 2 hours, filter, with filter cake with filter paper packet, mixing solutions with ethanol and acetone extracted wherein extracting 24 hours in Soxhlet, then with resulting polymers in vacuum drying oven 200 ℃ the baking 48 hours.
30 ℃ of limiting viscosities in meta-cresol of resulting polymers are 1.25dL/g, and second-order transition temperature (Tg) is 247 ℃.Heat-drawn wire is 220 ℃, and 5% thermal weight loss temperature is 506 ℃ in air.350 ℃ of melt viscosities are 1500Pas.
Embodiment 3: add 22.22g (0.04mol) 2 in the 500ml there-necked flask, 2 '-(4,4 '-two (3-chloro imide) phenylbenzene) different propane and 16.33g (0.03mol) 3, the mixture of 3 '-two (3-fluoro imide) sulfobenzide, 2.56g (0.01mol) 3, the mixture of 3 '-difluorodiphenyl sulfone and 5.19g (0.01mol) two (4-(4-chlorinated benzene sulfuryl) phenyl) ether, 2.88g (0.09mol) sulphur, 5.04g (0.09) reduced iron powder, 9.07g sodium bicarbonate, 0.3g18-hat-6 adds 300mlN after the logical argon gas deoxygenation three times, dinethylformamide is heated to 180 ℃ of reactions and adds 20ml oxalic acid cancellation polyreaction after 20 hours.
Reaction solution poured in the water lentamente stirred 2 hours, filter the back, filter, with filter cake 200 ℃ of bakings 48 hours in vacuum drying oven with water boil 2 hours.
30 ℃ of limiting viscosities in meta-cresol of resulting polymers are 0.41dL/g, and second-order transition temperature (Tg) is 249 ℃.Heat-drawn wire is 216 ℃, and 5% thermal weight loss temperature is 505 ℃ in air.350 ℃ of melt viscosities are 500Pas.
Embodiment 4: add 5.45g (0.01mol) 4,4 '-two (3-chloro imide) diphenyl sulfide in a 250ml there-necked flask, 0.32g (0.01mol) sulphur, 0.24g ((0.01mol) sodium hydride, 0.84g sodium bicarbonate, 0.05g Tetrabutylammonium bromide, 125ml HMPA; In an other 100ml there-necked flask, add 2.60g (0.005mol) two (4-(4-chlorinated benzene sulfuryl) phenyl) ether, 0.1603g (0.005mol) sulphur, 0.12g (0.005mol) sodium hydride, 0.42 sodium bicarbonate, 0.03g Tetrabutylammonium bromide 40ml HMPA; Being heated to 180 ℃ after all logical argon gas deoxygenation of two reaction flasks three times reacted after 8 hours, reacted 15 hours at 180 ℃ again after then the reaction solution in two there-necked flasks being mixed, added after N-phenyl-3-chlorophthalimide reheat to 170 ℃ reaction then behind the cool to room temperature 2 hours, the reaction solution cool to room temperature is carried out aftertreatment.
Reaction solution poured in the water lentamente stirred 2 hours, filter the back with water boil 2 hours, filter, with filter cake with filter paper packet, mixing solutions with ethanol and acetone extracted wherein extracting 24 hours in Soxhlet, then with resulting polymers in vacuum drying oven 200 ℃ the baking 48 hours.
30 ℃ of limiting viscosities in meta-cresol of resulting polymers are 0.41dL/g, and second-order transition temperature (Tg) is 271 ℃.Heat-drawn wire is 242 ℃, and 5% thermal weight loss temperature is 524 ℃ in air.350 ℃ of melt viscosities are 2500Pas.
Embodiment 5: add 1.15g (0.002mol) 4 in two mouthfuls of bottles of 25ml, two (the 4-chloro imide) sulfobenzides of 4-, 0.25g (0.001mol) 3,4 '-difluorodiphenyl sulfone, 0.10g (0.003mol) sulphur, 0.10g (0.004mol) sodium hydride, 0.32g salt of wormwood, 0.05g sodium iodide, add 10mlN after the logical argon gas deoxygenation three times, dinethylformamide was heated to 150 ℃ of reactions after 24 hours, added behind the 3-nitro benzophenone reheat to 200 ℃ reaction behind the cool to room temperature 1 hour, the reaction solution cool to room temperature carried out aftertreatment.
Reaction solution poured in the ethanol lentamente stirred 2 hours, filter the back with water boil 2 hours, filter, with filter cake with filter paper packet, mixing solutions with ethanol and acetone extracted wherein extracting 24 hours in Soxhlet, then with resulting polymers in vacuum drying oven 200 ℃ the baking 48 hours.
30 ℃ of limiting viscosities in meta-cresol of resulting polymers are 1.75dL/g, and second-order transition temperature (Tg) is 281 ℃.Heat-drawn wire is 241 ℃, and 5% thermal weight loss temperature is 531 ℃ in air.350 ℃ of melt viscosities are 700Pas.
Embodiment 6: add 4.37g (0.01mol) N in two mouthfuls of bottles of 250ml, a N '-phenyl-two (4-chloro imide), 9.17g (0.02mol) 4,4 '-two fluoro-3,3 '-sodium disulfonate sulfobenzide, 0.96g (0.03mol) sulphur, 0.81g (0.03mol) aluminium powder, 3.40g salt of wormwood, 0.2g add 80mlN-crassitude copper (solid content: 14%), be heated to 170 ℃ of reactions after 17 hours behind the Tetrabutylammonium bromide, logical argon gas deoxygenation three times, added behind the 2-iodonitrobenzene reheat to 200 ℃ reaction behind the cool to room temperature 3 hours, the reaction solution cool to room temperature is carried out aftertreatment.
Poured reaction solution into deionized water for stirring lentamente 2 hours, filter the back, filter, then with resulting polymers 200 ℃ of bakings 48 hours in vacuum drying oven with water boil 2 hours.
30 ℃ of limiting viscosities in meta-cresol of resulting polymers are 0.65dL/g, and second-order transition temperature (Tg) is 256 ℃.Heat-drawn wire is 210 ℃, and 5% thermal weight loss temperature is 542 ℃ in air.350 ℃ of melt viscosities are 4800Pas.
Embodiment 7: add 5.55g (0.01mol) 3 in two mouthfuls of bottles of 500ml, 3-dimethyl-two (4-chloro imide)-4, the 4-ditane, 2.29g (0.005mol) 4,4 '-two fluoro-3,3 '-sodium disulfonate sulfobenzide and 6.36g (0.025mol) 4,4 '-difluorodiphenyl sulfone, 1.35g (0.042mol) sulphur, 2.40g (0.08mol) Paraformaldehyde 96,3.20g sodium hydroxide, 0.2g add 270mlN-crassitude copper (solid content: 5%), be heated to 190 ℃ of reactions after 20 hours behind the Tetrabutylammonium bromide, logical argon gas deoxygenation three times, added after N-cyclohexyl-4-chlorophthalimide reheat to 200 ℃ reaction behind the cool to room temperature 3 hours, the reaction solution cool to room temperature is carried out aftertreatment.
Poured reaction solution into deionized water for stirring lentamente 2 hours, filter the back, filter, then with resulting polymers 200 ℃ of bakings 40 hours in vacuum drying oven with water boil 5 hours.
30 ℃ of limiting viscosities in meta-cresol of resulting polymers are 1.31dL/g, and second-order transition temperature (Tg) is 235 ℃.Heat-drawn wire is 191 ℃, and 5% thermal weight loss temperature is 535 ℃ in air.350 ℃ of melt viscosities are 800Pas.
Embodiment 8: add two (the 4-chloro imides)-1 of 44.33g (0.1mol) in two mouthfuls of bottles of 2000ml, 6 hexanaphthenes, 2.29g (0.005mol) 4,4 '-two fluoro-3,3-sodium disulfonate sulfobenzide and 27.28g (0.095mol) 4,4 '-dichloro diphenyl sulfone, 3.05g (0.095mol) sulphur, 10.00g (0.20mol) hydrazine hydrate, 8.20g sodium hydroxide, 0.60g Tetrabutylammonium bromide, add 900mlN-methyl-2-pyrrolidone (solid content: 8%) after the logical argon gas deoxygenation three times, be heated to 160 ℃ of reactions after 16 hours, added after N-cyclohexyl-4-chlorophthalimide reheat to 200 ℃ reaction behind the cool to room temperature 3 hours, the reaction solution cool to room temperature is carried out aftertreatment.
Poured reaction solution into deionized water for stirring lentamente 2 hours, filter the back, filter, then with resulting polymers 200 ℃ of bakings 40 hours in vacuum drying oven with water boil 5 hours.
30 ℃ of limiting viscosities in meta-cresol of resulting polymers are 1.98dL/g, and second-order transition temperature (Tg) is 235 ℃.Heat-drawn wire is 191 ℃, and 5% thermal weight loss temperature is 520 ℃ in air.350 ℃ of melt viscosities are 320Pas.
Embodiment 9: add 12.43g (0.02mol) 1 in the 500ml there-necked flask, 4-two (4-(3-chloro imide) two phenoxy groups) benzene and 16.33g (0.03mol) 3, the mixture of 3 '-two (3-fluoro imide) sulfobenzide, 9.43g (0.02mol) mixture of two (4-(4-chloro phenoxy group) phenyl) sulfones and 5.19g (0.01mol) two (4-(4-chlorinated benzene sulfuryl) phenyl) ether, 2.88g (0.09mol) sulphur, 5.04g (0.09) reduced iron powder, 9.07g sodium bicarbonate, 0.3g18-hat-6, add 300mlN after the logical argon gas deoxygenation three times, dinethylformamide (solid content: 12%), be heated to 180 ℃ of reactions and add 20ml oxysuccinic acid cancellation polyreaction after 20 hours.
Reaction solution poured in the water lentamente stirred 2 hours, filter the back, filter, with filter cake 200 ℃ of bakings 48 hours in vacuum drying oven with water boil 2 hours.
30 ℃ of limiting viscosities in meta-cresol of resulting polymers are 0.41dL/g, and second-order transition temperature (Tg) is 231 ℃.Heat-drawn wire is 182 ℃, and 5% thermal weight loss temperature is 490 ℃ in air.350 ℃ of melt viscosities are 126Pas.
Embodiment 10: add 33.88g (0.05mol) 9 in a 2000ml there-necked flask, 9-two (3-chloro imide) phenyl-9H-fluorenes, 1.60g (0.05mol) sulphur, 1.20g ((0.01mol) sodium hydride, 4.50g sodium bicarbonate, 0.30g Tetrabutylammonium bromide, 600ml HMPA; In an other 100ml there-necked flask, add 2.60g (0.005mol) two (4-(4-chlorinated benzene sulfuryl) phenyl) ether, 0.1603g (0.005mol) sulphur, 0.12g (0.005mol) sodium hydride, 0.42 sodium bicarbonate, 0.03g Tetrabutylammonium bromide 40ml HMPA; Being heated to 130 ℃ after all logical argon gas deoxygenation of two reaction flasks three times reacted after 28 hours, reacted 15 hours at 150 ℃ again after then the reaction solution in two there-necked flasks being mixed, added after N-phenyl-3-chlorophthalimide reheat to 170 ℃ reaction then behind the cool to room temperature 2 hours, the reaction solution cool to room temperature is carried out aftertreatment.
Reaction solution poured in the water lentamente stirred 2 hours, filter the back with water boil 2 hours, filter, with filter cake with filter paper packet, mixing solutions with ethanol and acetone extracted wherein extracting 24 hours in Soxhlet, then with resulting polymers in vacuum drying oven 200 ℃ the baking 48 hours.
30 ℃ of limiting viscosities in meta-cresol of resulting polymers are 2.81dL/g, and second-order transition temperature (Tg) is 224 ℃.Heat-drawn wire is 205 ℃, and 5% thermal weight loss temperature is 512 ℃ in air.350 ℃ of melt viscosities are 260Pas.
Second-order transition temperature in the foregoing description (Tg) adopts dsc (DSC) to measure, and heating rate is 20 ℃/minute.Weight-average molecular weight adopts gel permeation chromatography (GPC) to measure, and uses polystyrene not have as standard, and the mixture of the Virahol of use chloroform and 3.5% volume is as solvent.The GPC post is the Mix-C post, is of a size of 300mm * 7.5mm, buys from Polymer Laboratories.Heat-drawn wire uses the Vicat softening point determinator to measure.
Claims (18)
1. PASSI terpolymer, its general structure is as follows:
Wherein, m, n are natural number, and the position in the alive polymkeric substance of thioether on the phthalimide structural unit is in the 3-position or the 4-position, and A, R, R ' are fat or aromatic group.
2. PASSI terpolymer according to claim 1 is characterized in that described PASSI terpolymer glass transition temperature Tg 〉=170 ℃, heat-drawn wire 〉=140 ℃, heat decomposition temperature 〉=400 ℃.
3. the terpolymer of preparation method's preparation according to claim 1 is characterized in that described PASSI terpolymer and 350 ℃ of mensuration melt viscosities are less than 10000 pascal seconds.
4. the terpolymer of preparation method according to claim 1 preparation, it is characterized in that described PASSI terpolymer by Ubbelohde viscometer concentration 30 ℃ the time be the logarithmic viscosity number measured in the meta-cresol of 0.5g/dL at 0.13dL/g between the 3.10dL/g.
5. the preparation method of a PASSI terpolymer, it is characterized in that sulphur, two replacement phthalimide, two replacement sulfone, reductive agent, reaction promoter are joined in the reactor that solvent is housed, behind the reacting by heating certain hour reaction solution poured in the precipitation agent and stir, filter, with filter cake desalination and residual solvent get final product PASSI terpolymer.
6. preparation method according to claim 5 is characterized in that described two phthalimide that replaces has general structure shown below:
Wherein, A is fat or aromatic group, and X is fluorine, chlorine, bromine, iodine or nitro, and the position of substituent X is in the 3-position or the containing on the phthalimide ring of 4-position.
7. preparation method according to claim 5 is characterized in that described two phthalimide that replaces synthesizes diamines NH by corresponding replacement phthalic anhydride and diamines
2-A-NH
2In organic group A be selected from following at least a diamines:
1,2-hexanediamine, 1,6-hexanediamine, 1,6-cyclohexanediamine, Ursol D, mphenylenediamine, 4,4 '-benzidine, 3,3 '-dimethyl-4,4 '-benzidine, 2,2 '-dimethyl-4,4 '-benzidine, 4,4 '-diaminodiphenyl oxide, 3,4 '-diaminodiphenyl oxide, 4,4 '-diamino benzophenone, 3,4 '-diamino benzophenone, 4,4 '-diaminodiphenylsulfone(DDS), 3,4 '-diaminodiphenylsulfone(DDS), 4,4 '-diaminodiphenylmethane, 4, the different propane of 4 '-diamino-diphenyl, 4,4 '-diaminodiphenyl sulfide, 2,2 '-two chloro-4,4 '-diaminodiphenylmethane, 3,3 '-two chloro-4,4 '-diaminodiphenylmethane, 4,4 '-diamino-two phenoxy group-4 ", 4 ' " biphenyl, 4,4 '-diamino-two phenoxy group-4 ", 4 ' " phenyl ether, 4,4 '-diamino-two phenoxy group-4 ", 4 ' " sulfobenzide, 4,4 '-diamino-two phenoxy group-4 ", 4 ' " the different propane of phenylbenzene, 2,4-tolylene diamine, 5-methyl-4,6-diethyl-1,3-phenylenediamine, 3,3 '-dimethyl-4,4 '-diaminodiphenylmethane, 2,2 ' 3,3 '-tetramethyl--4,4 '-diaminodiphenylmethane.
8. preparation method according to claim 5 is characterized in that described two sulfone that replaces is at least by one of following general structure:
A, have following general structure (III),
Wherein, X
1Be fluorine, chlorine, bromine, iodine or nitro; M is H, SO
3Li, SO
3Na, SO
3K or SO
3H; Substituent X
1, M the position be ortho position, a position or contraposition;
B, have following general structure (IV):
Wherein, X
1Be fluorine, chlorine, bromine, iodine or nitro; M is H, SO
3Li, SO
3Na, SO
3K or SO
3H; Substituent X
1, M the position be ortho position, a position or contraposition;
C, following general structure (V) is arranged:
Wherein: X
1Be fluorine, chlorine, bromine, iodine or nitro; M is H, SO
3Li, SO
3Na, SO
3K or SO
3H; Q is selected from one of following group:
R is one of following group:
N is 1～6 integer.
9. preparation method according to claim 5, it is following at least a to it is characterized in that described reductive agent is selected from: oxalate, formate, aldehydes, phenylhydrazine, hydrazine hydrate, azanol, iron powder, aluminium powder, zinc powder, ferrous salt, tin salt, sodium hydride, hydrolith, sodium borohydride, lithium aluminum hydride, ammonia and hydrogen.
10. preparation method according to claim 5, it is following at least a to it is characterized in that described reaction promoter is selected from: Quilonum Retard, yellow soda ash, salt of wormwood, saleratus, sodium bicarbonate, yellow soda ash, sodium hydrogen phosphate, potassium hydrogen phosphate, phosphoric acid acid disodium hydrogen, dipotassium hydrogen phosphate, sodium-acetate, Potassium ethanoate, potassium hydroxide, sodium hydroxide, lithium hydroxide, calcium chloride, sodium-chlor, Repone K, lithiumbromide, Potassium monofluoride, sodium iodide, quaternary amine, quaternary alkylphosphonium salt, crown ether.
11. preparation method according to claim 5 is characterized in that described solvent is dipolar aprotic solvent, benzene kind solvent or their mixture, described dipolar aprotic solvent is following at least a:
N, dinethylformamide, N,N-dimethylacetamide, N-N-methyl-2-2-pyrrolidone N-, N-N-methyl-2-2-pyrrolidone N-, dimethyl sulfoxide (DMSO), HMPA, sulfobenzide, N-ethyl hexanolactam, hexanolactam, tetramethyl-urea, tetramethylene sulfone;
Benzene kind solvent is following at least a: benzene,toluene,xylene, chlorobenzene, dichlorobenzene, toluene dichloride, phenyl ethyl ether, methyl-phenoxide, 1,2,4-trichlorobenzene and o-Xylol oxygen base benzene.
12. preparation method according to claim 5 is characterized in that described temperature of reaction is 60 ℃～300 ℃.
13. preparation method according to claim 5, it is characterized in that described PASSI terpolymer also comprises the molecular weight that comes controlled polymerization degree and polymkeric substance derived from the structural unit of at least a chain terminator, the structural unit of described chain terminator is to have general structure as follows: B-R-M, and wherein B is the halogen atom or the nitro of fluorine, chlorine or bromine atom; R is phenyl, substituted-phenyl, xenyl, substituted biphenyl base, furyl, pyridyl, naphthyl or quinolyl; M be hydrogen, methyl, acyl group, phenyl acyl group, alkyl sulphonyl, aryl sulfonyl, nitre its, cyano group, azo-group, carboxyl, trifluoromethyl, imide or substituted imides base;
Described chain terminator is for following at least a kind of: chloro-N-aryl phthalic imidine, chloro-N-alkyl phthalic imide, alkylogen, alkyl chloride, aryl halide.
14. preparation method according to claim 13, it is characterized in that described chain terminator is following at least a: 3-chloro-phenyl--tertiary butyl ketone, 3-fluorophenyl-tertiary butyl ketone, the 4-chloro benzophenone, 3-nitro benzophenone, 4-nitrophenyl methyl sulfone, the 4-fluorophenyl phenyl sulfone, its benzene of 2-iodine nitre, 4-bromophenyl nitrogen benzide, 4-fluorine pyridine, the 3-chloro-benzoic acid, 1-nitro-4-trifluoromethylbenzene, 1-chloro-3-trifluoromethylbenzene, N-phenyl-3-chlorophthalimide, N-phenyl-4-fluorine phthalic imidine, N-methyl-3-chlorophthalimide, N-methyl-4-nitro phthalic imidine, N-butyl-3-chlorophthalimide, N-cyclohexyl-4-chlorophthalimide.
15. preparation method according to claim 5 is characterized in that the amount of substance of described sulphur is two phthalimide and two 50%～200% of sulfone amount of substance sums that replace of replacing.
16. preparation method according to claim 5, the amount that it is characterized in that the material sum of described auxiliary agent and catalyzer are 0.02～5 times of sulphur amount of substance.
17. preparation method according to claim 5 is characterized in that described solvent quality is 0.1%～50% of a reaction solution solid content, the reaction solution solid content equals following formula:
18. preparation method according to claim 5, the amount of substance consumption that it is characterized in that described reductive agent is 0.2～6 times of sulphur amount of substance consumption.
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