JP2021063208A - ポリイミドフィルムの製造方法 - Google Patents
ポリイミドフィルムの製造方法 Download PDFInfo
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- JP2021063208A JP2021063208A JP2020043468A JP2020043468A JP2021063208A JP 2021063208 A JP2021063208 A JP 2021063208A JP 2020043468 A JP2020043468 A JP 2020043468A JP 2020043468 A JP2020043468 A JP 2020043468A JP 2021063208 A JP2021063208 A JP 2021063208A
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- Prior art keywords
- polyimide film
- treatment
- liquid
- bis
- polyimide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229920001721 polyimide Polymers 0.000 title claims abstract description 195
- 238000004519 manufacturing process Methods 0.000 title claims description 22
- 238000011282 treatment Methods 0.000 claims abstract description 161
- 239000007788 liquid Substances 0.000 claims abstract description 120
- 239000003960 organic solvent Substances 0.000 claims abstract description 49
- -1 glycol ethers Chemical class 0.000 claims abstract description 44
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000004642 Polyimide Substances 0.000 claims abstract description 37
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 14
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims abstract description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 54
- GTDPSWPPOUPBNX-UHFFFAOYSA-N ac1mqpva Chemical compound CC12C(=O)OC(=O)C1(C)C1(C)C2(C)C(=O)OC1=O GTDPSWPPOUPBNX-UHFFFAOYSA-N 0.000 claims description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 35
- 239000009719 polyimide resin Substances 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 25
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 18
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 18
- 150000004985 diamines Chemical class 0.000 claims description 16
- NVKGJHAQGWCWDI-UHFFFAOYSA-N 4-[4-amino-2-(trifluoromethyl)phenyl]-3-(trifluoromethyl)aniline Chemical compound FC(F)(F)C1=CC(N)=CC=C1C1=CC=C(N)C=C1C(F)(F)F NVKGJHAQGWCWDI-UHFFFAOYSA-N 0.000 claims description 14
- 150000001298 alcohols Chemical class 0.000 claims description 8
- 239000004210 ether based solvent Substances 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 6
- QHHKLPCQTTWFSS-UHFFFAOYSA-N 5-[2-(1,3-dioxo-2-benzofuran-5-yl)-1,1,1,3,3,3-hexafluoropropan-2-yl]-2-benzofuran-1,3-dione Chemical group C1=C2C(=O)OC(=O)C2=CC(C(C=2C=C3C(=O)OC(=O)C3=CC=2)(C(F)(F)F)C(F)(F)F)=C1 QHHKLPCQTTWFSS-UHFFFAOYSA-N 0.000 claims description 5
- 125000006158 tetracarboxylic acid group Chemical group 0.000 claims description 4
- 239000002904 solvent Substances 0.000 abstract description 83
- 239000013557 residual solvent Substances 0.000 abstract description 36
- 239000012528 membrane Substances 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 description 36
- 239000000243 solution Substances 0.000 description 34
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 33
- 229920005575 poly(amic acid) Polymers 0.000 description 31
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 26
- 238000007654 immersion Methods 0.000 description 26
- 239000010408 film Substances 0.000 description 22
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 description 20
- 230000000052 comparative effect Effects 0.000 description 19
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 15
- 239000002253 acid Substances 0.000 description 14
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 11
- 125000004432 carbon atom Chemical group C* 0.000 description 11
- KZTYYGOKRVBIMI-UHFFFAOYSA-N diphenyl sulfone Chemical compound C=1C=CC=CC=1S(=O)(=O)C1=CC=CC=C1 KZTYYGOKRVBIMI-UHFFFAOYSA-N 0.000 description 10
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 8
- WKDNYTOXBCRNPV-UHFFFAOYSA-N bpda Chemical compound C1=C2C(=O)OC(=O)C2=CC(C=2C=C3C(=O)OC(C3=CC=2)=O)=C1 WKDNYTOXBCRNPV-UHFFFAOYSA-N 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- LJGHYPLBDBRCRZ-UHFFFAOYSA-N 3-(3-aminophenyl)sulfonylaniline Chemical compound NC1=CC=CC(S(=O)(=O)C=2C=C(N)C=CC=2)=C1 LJGHYPLBDBRCRZ-UHFFFAOYSA-N 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 5
- 238000009835 boiling Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 229940028356 diethylene glycol monobutyl ether Drugs 0.000 description 5
- 238000007598 dipping method Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- JCGNDDUYTRNOFT-UHFFFAOYSA-N oxolane-2,4-dione Chemical compound O=C1COC(=O)C1 JCGNDDUYTRNOFT-UHFFFAOYSA-N 0.000 description 5
- 238000006116 polymerization reaction Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 4
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
- 239000011737 fluorine Substances 0.000 description 4
- 239000002985 plastic film Substances 0.000 description 4
- 229920006255 plastic film Polymers 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000001294 propane Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- HYLLZXPMJRMUHH-UHFFFAOYSA-N 1-[2-(2-methoxyethoxy)ethoxy]butane Chemical compound CCCCOCCOCCOC HYLLZXPMJRMUHH-UHFFFAOYSA-N 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- JPZRPCNEISCANI-UHFFFAOYSA-N 4-(4-aminophenyl)-3-(trifluoromethyl)aniline Chemical compound C1=CC(N)=CC=C1C1=CC=C(N)C=C1C(F)(F)F JPZRPCNEISCANI-UHFFFAOYSA-N 0.000 description 3
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 3
- WVOLTBSCXRRQFR-SJORKVTESA-N Cannabidiolic acid Natural products OC1=C(C(O)=O)C(CCCCC)=CC(O)=C1[C@@H]1[C@@H](C(C)=C)CCC(C)=C1 WVOLTBSCXRRQFR-SJORKVTESA-N 0.000 description 3
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000007983 Tris buffer Substances 0.000 description 3
- UVXIFYUJZWURAR-UHFFFAOYSA-N [3-(4-aminobenzoyl)phenyl]-(4-aminophenyl)methanone Chemical compound C1=CC(N)=CC=C1C(=O)C1=CC=CC(C(=O)C=2C=CC(N)=CC=2)=C1 UVXIFYUJZWURAR-UHFFFAOYSA-N 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- HFACYLZERDEVSX-UHFFFAOYSA-N benzidine Chemical compound C1=CC(N)=CC=C1C1=CC=C(N)C=C1 HFACYLZERDEVSX-UHFFFAOYSA-N 0.000 description 3
- WVOLTBSCXRRQFR-DLBZAZTESA-N cannabidiolic acid Chemical compound OC1=C(C(O)=O)C(CCCCC)=CC(O)=C1[C@H]1[C@H](C(C)=C)CCC(C)=C1 WVOLTBSCXRRQFR-DLBZAZTESA-N 0.000 description 3
- 239000012024 dehydrating agents Substances 0.000 description 3
- 125000006159 dianhydride group Chemical group 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- 239000012046 mixed solvent Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 150000003457 sulfones Chemical class 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 description 2
- CHLICZRVGGXEOD-UHFFFAOYSA-N 1-Methoxy-4-methylbenzene Chemical compound COC1=CC=C(C)C=C1 CHLICZRVGGXEOD-UHFFFAOYSA-N 0.000 description 2
- GZMAAYIALGURDQ-UHFFFAOYSA-N 2-(2-hexoxyethoxy)ethanol Chemical compound CCCCCCOCCOCCO GZMAAYIALGURDQ-UHFFFAOYSA-N 0.000 description 2
- SBASXUCJHJRPEV-UHFFFAOYSA-N 2-(2-methoxyethoxy)ethanol Chemical compound COCCOCCO SBASXUCJHJRPEV-UHFFFAOYSA-N 0.000 description 2
- COBPKKZHLDDMTB-UHFFFAOYSA-N 2-[2-(2-butoxyethoxy)ethoxy]ethanol Chemical compound CCCCOCCOCCOCCO COBPKKZHLDDMTB-UHFFFAOYSA-N 0.000 description 2
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 2
- CRWNQZTZTZWPOF-UHFFFAOYSA-N 2-methyl-4-phenylpyridine Chemical compound C1=NC(C)=CC(C=2C=CC=CC=2)=C1 CRWNQZTZTZWPOF-UHFFFAOYSA-N 0.000 description 2
- KRPRVQWGKLEFKN-UHFFFAOYSA-N 3-(3-aminopropoxy)propan-1-amine Chemical compound NCCCOCCCN KRPRVQWGKLEFKN-UHFFFAOYSA-N 0.000 description 2
- QCAHUFWKIQLBNB-UHFFFAOYSA-N 3-(3-methoxypropoxy)propan-1-ol Chemical compound COCCCOCCCO QCAHUFWKIQLBNB-UHFFFAOYSA-N 0.000 description 2
- SYBYTAAJFKOIEJ-UHFFFAOYSA-N 3-Methylbutan-2-one Chemical compound CC(C)C(C)=O SYBYTAAJFKOIEJ-UHFFFAOYSA-N 0.000 description 2
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- UTDAGHZGKXPRQI-UHFFFAOYSA-N 4-[4-[4-(4-aminophenoxy)phenyl]sulfonylphenoxy]aniline Chemical compound C1=CC(N)=CC=C1OC1=CC=C(S(=O)(=O)C=2C=CC(OC=3C=CC(N)=CC=3)=CC=2)C=C1 UTDAGHZGKXPRQI-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 125000002723 alicyclic group Chemical group 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 125000004202 aminomethyl group Chemical group [H]N([H])C([H])([H])* 0.000 description 2
- 150000004984 aromatic diamines Chemical class 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- GCAIEATUVJFSMC-UHFFFAOYSA-N benzene-1,2,3,4-tetracarboxylic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1C(O)=O GCAIEATUVJFSMC-UHFFFAOYSA-N 0.000 description 2
- 125000003236 benzoyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C(*)=O 0.000 description 2
- 235000010290 biphenyl Nutrition 0.000 description 2
- 239000004305 biphenyl Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- VHRGRCVQAFMJIZ-UHFFFAOYSA-N cadaverine Chemical compound NCCCCCN VHRGRCVQAFMJIZ-UHFFFAOYSA-N 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- BGTOWKSIORTVQH-UHFFFAOYSA-N cyclopentanone Chemical compound O=C1CCCC1 BGTOWKSIORTVQH-UHFFFAOYSA-N 0.000 description 2
- 239000004205 dimethyl polysiloxane Substances 0.000 description 2
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 2
- 150000002168 ethanoic acid esters Chemical class 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 125000001153 fluoro group Chemical group F* 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 239000005453 ketone based solvent Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- XNLICIUVMPYHGG-UHFFFAOYSA-N pentan-2-one Chemical compound CCCC(C)=O XNLICIUVMPYHGG-UHFFFAOYSA-N 0.000 description 2
- FDPIMTJIUBPUKL-UHFFFAOYSA-N pentan-3-one Chemical compound CCC(=O)CC FDPIMTJIUBPUKL-UHFFFAOYSA-N 0.000 description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- KIDHWZJUCRJVML-UHFFFAOYSA-N putrescine Chemical compound NCCCCN KIDHWZJUCRJVML-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 150000003384 small molecules Chemical class 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 150000003462 sulfoxides Chemical class 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- JLGLQAWTXXGVEM-UHFFFAOYSA-N triethylene glycol monomethyl ether Chemical compound COCCOCCOCCO JLGLQAWTXXGVEM-UHFFFAOYSA-N 0.000 description 2
- XFNJVJPLKCPIBV-UHFFFAOYSA-N trimethylenediamine Chemical compound NCCCN XFNJVJPLKCPIBV-UHFFFAOYSA-N 0.000 description 2
- HFBHOAHFRNLZGN-LURJTMIESA-N (2s)-2-formamido-4-methylpentanoic acid Chemical compound CC(C)C[C@@H](C(O)=O)NC=O HFBHOAHFRNLZGN-LURJTMIESA-N 0.000 description 1
- STIUJDCDGZSXGO-UHFFFAOYSA-N (3-amino-4-phenoxyphenyl)-(3-aminophenyl)methanone Chemical compound NC1=CC=CC(C(=O)C=2C=C(N)C(OC=3C=CC=CC=3)=CC=2)=C1 STIUJDCDGZSXGO-UHFFFAOYSA-N 0.000 description 1
- YKNMIGJJXKBHJE-UHFFFAOYSA-N (3-aminophenyl)-(4-aminophenyl)methanone Chemical compound C1=CC(N)=CC=C1C(=O)C1=CC=CC(N)=C1 YKNMIGJJXKBHJE-UHFFFAOYSA-N 0.000 description 1
- GETTZEONDQJALK-UHFFFAOYSA-N (trifluoromethyl)benzene Chemical compound FC(F)(F)C1=CC=CC=C1 GETTZEONDQJALK-UHFFFAOYSA-N 0.000 description 1
- QYGBYAQGBVHMDD-XQRVVYSFSA-N (z)-2-cyano-3-thiophen-2-ylprop-2-enoic acid Chemical compound OC(=O)C(\C#N)=C/C1=CC=CS1 QYGBYAQGBVHMDD-XQRVVYSFSA-N 0.000 description 1
- VNJNCUKYJZOMRO-UHFFFAOYSA-N 1,1,1,3,3,3-hexafluoropropane 3-phenoxyaniline Chemical compound FC(CC(F)(F)F)(F)F.NC=1C=C(OC=2C=CC=CC2)C=CC1 VNJNCUKYJZOMRO-UHFFFAOYSA-N 0.000 description 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- 125000001140 1,4-phenylene group Chemical group [H]C1=C([H])C([*:2])=C([H])C([H])=C1[*:1] 0.000 description 1
- PWGJDPKCLMLPJW-UHFFFAOYSA-N 1,8-diaminooctane Chemical compound NCCCCCCCCN PWGJDPKCLMLPJW-UHFFFAOYSA-N 0.000 description 1
- CUVLMZNMSPJDON-UHFFFAOYSA-N 1-(1-butoxypropan-2-yloxy)propan-2-ol Chemical compound CCCCOCC(C)OCC(C)O CUVLMZNMSPJDON-UHFFFAOYSA-N 0.000 description 1
- XYKNTXVAUYWFFE-UHFFFAOYSA-N 1-(1-hexoxypropan-2-yloxy)propan-2-ol Chemical compound CCCCCCOCC(C)OCC(C)O XYKNTXVAUYWFFE-UHFFFAOYSA-N 0.000 description 1
- LAVARTIQQDZFNT-UHFFFAOYSA-N 1-(1-methoxypropan-2-yloxy)propan-2-yl acetate Chemical compound COCC(C)OCC(C)OC(C)=O LAVARTIQQDZFNT-UHFFFAOYSA-N 0.000 description 1
- QWOZZTWBWQMEPD-UHFFFAOYSA-N 1-(2-ethoxypropoxy)propan-2-ol Chemical compound CCOC(C)COCC(C)O QWOZZTWBWQMEPD-UHFFFAOYSA-N 0.000 description 1
- QCNZRFLQCBZYMO-UHFFFAOYSA-N 1-[2-(2-butoxyethoxy)ethoxy]pentane Chemical compound CCCCCOCCOCCOCCCC QCNZRFLQCBZYMO-UHFFFAOYSA-N 0.000 description 1
- VXVGKMGIPAWMJC-UHFFFAOYSA-N 1-[2-(2-ethoxyethoxy)ethoxy]butane Chemical compound CCCCOCCOCCOCC VXVGKMGIPAWMJC-UHFFFAOYSA-N 0.000 description 1
- HQDGQKLBDFTNEM-UHFFFAOYSA-N 1-[2-(2-ethoxyethoxy)ethoxy]pentane Chemical compound CCCCCOCCOCCOCC HQDGQKLBDFTNEM-UHFFFAOYSA-N 0.000 description 1
- MBRRDORCFVPYMA-UHFFFAOYSA-N 1-[2-(2-methoxyethoxy)ethoxy]propane Chemical compound CCCOCCOCCOC MBRRDORCFVPYMA-UHFFFAOYSA-N 0.000 description 1
- YXOUPUFJBBFWNL-UHFFFAOYSA-N 1-[2-(2-pentoxyethoxy)ethoxy]pentane Chemical compound CCCCCOCCOCCOCCCCC YXOUPUFJBBFWNL-UHFFFAOYSA-N 0.000 description 1
- GNVFCWJZMJINCS-UHFFFAOYSA-N 1-[2-(2-propoxyethoxy)ethoxy]butane Chemical compound CCCCOCCOCCOCCC GNVFCWJZMJINCS-UHFFFAOYSA-N 0.000 description 1
- CWXNQBGBKAMLPP-UHFFFAOYSA-N 1-[2-(2-propoxyethoxy)ethoxy]pentane Chemical compound CCCCCOCCOCCOCCC CWXNQBGBKAMLPP-UHFFFAOYSA-N 0.000 description 1
- BOGFHOWTVGAYFK-UHFFFAOYSA-N 1-[2-(2-propoxyethoxy)ethoxy]propane Chemical compound CCCOCCOCCOCCC BOGFHOWTVGAYFK-UHFFFAOYSA-N 0.000 description 1
- RWNUSVWFHDHRCJ-UHFFFAOYSA-N 1-butoxypropan-2-ol Chemical compound CCCCOCC(C)O RWNUSVWFHDHRCJ-UHFFFAOYSA-N 0.000 description 1
- FUWDFGKRNIDKAE-UHFFFAOYSA-N 1-butoxypropan-2-yl acetate Chemical compound CCCCOCC(C)OC(C)=O FUWDFGKRNIDKAE-UHFFFAOYSA-N 0.000 description 1
- VLDPXPPHXDGHEW-UHFFFAOYSA-N 1-chloro-2-dichlorophosphoryloxybenzene Chemical compound ClC1=CC=CC=C1OP(Cl)(Cl)=O VLDPXPPHXDGHEW-UHFFFAOYSA-N 0.000 description 1
- RRQYJINTUHWNHW-UHFFFAOYSA-N 1-ethoxy-2-(2-ethoxyethoxy)ethane Chemical compound CCOCCOCCOCC RRQYJINTUHWNHW-UHFFFAOYSA-N 0.000 description 1
- CNJRPYFBORAQAU-UHFFFAOYSA-N 1-ethoxy-2-(2-methoxyethoxy)ethane Chemical compound CCOCCOCCOC CNJRPYFBORAQAU-UHFFFAOYSA-N 0.000 description 1
- CAQYAZNFWDDMIT-UHFFFAOYSA-N 1-ethoxy-2-methoxyethane Chemical compound CCOCCOC CAQYAZNFWDDMIT-UHFFFAOYSA-N 0.000 description 1
- JOLQKTGDSGKSKJ-UHFFFAOYSA-N 1-ethoxypropan-2-ol Chemical compound CCOCC(C)O JOLQKTGDSGKSKJ-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
ポリイミドは、一般にテトラカルボン酸二無水物(以下、「酸二無水物」と記載する場合がある)とジアミンとの重合によりポリアミド酸を得て、ポリアミド酸を脱水環化することにより得られる。すなわち、ポリイミドはテトラカルボン酸二無水物由来構造とジアミン由来構造とを有する。
ポリアミド酸およびポリイミドの原料として使用可能な酸二無水物の例としては、エチレンテトラカルボン酸二無水物、ブタンテトラカルボン酸二無水物、1,2,3,4−シクロブタンテトラカルボン酸二無水物、1,2,3,4−シクロペンタンテトラカルボン酸二無水物、1,2,4,5−シクロヘキサンテトラカルボン酸二無水物、1,1’‐ビシクロヘキサン−3,3’,4,4’テトラカルボン酸二無水物、3,3’,4,4’−ベンゾフェノンテトラカルボン酸二無水物、2,2’,3,3’−ベンゾフェノンテトラカルボン酸二無水物、2,2’,3,3’−ビフェニルテトラカルボン酸二無水物、ピロメリット酸二無水物、3,3’,4,4’-ビフェニルテトラカルボン酸二無水物、2,2−ビス(3,4−ジカルボキシフェニル)プロパン二無水物、2,2−ビス(2,3−ジカルボキシフェニル)プロパン二無水物、ビス(3,4−ジカルボキシフェニル)エーテル二無水物、ビス(3,4−ジカルボキシフェニル)スルホン二無水物、1,1−ビス(2,3−ジカルボキシフェニル)エタン二無水物、ビス(2,3−ジカルボキシフェニル)メタン二無水物、ビス(3,4−ジカルボキシフェニル)メタン二無水物、2,2−ビス(3,4−ジカルボキシフェニル)−1,1,1,3,3,3−ヘキサフルオロプロパン二無水物、2,2−ビス(2,3−ジカルボキシフェニル)−1,1,1,3,3,3−ヘキサフルオロプロパン二無水物、2,2−ビス{4−[4−(1,2−ジカルボキシ)フェノキシ]フェニル}−1,1,1,3,3,3−ヘキサフルオロプロパン二無水物、1,3−ビス[(3,4−ジカルボキシ)ベンゾイル]ベンゼン二無水物、1,4−ビス[(3,4−ジカルボキシ)ベンゾイル]ベンゼン二無水物、2,2−ビス{4−[4−(1,2−ジカルボキシ)フェノキシ]フェニル}プロパン二無水物、2,2−ビス{4−[3−(1,2−ジカルボキシ)フェノキシ]フェニル}プロパン二無水物、ビス{4−[4−(1,2−ジカルボキシ)フェノキシ]フェニル}ケトン二無水物、ビス{4−[3−(1,2−ジカルボキシ)フェノキシ]フェニル}ケトン二無水物、4,4’−ビス[4−(1,2−ジカルボキシ)フェノキシ]ビフェニル二無水物、4,4’−ビス[3−(1,2−ジカルボキシ)フェノキシ]ビフェニル二無水物、ビス{4−[4−(1,2−ジカルボキシ)フェノキシ]フェニル}ケトン二無水物、ビス{4−[3−(1,2−ジカルボキシ)フェノキシ]フェニル}ケトン二無水物、ビス{4−[4−(1,2−ジカルボキシ)フェノキシ]フェニル}スルホン二無水物、ビス{4−[3−(1,2−ジカルボキシ)フェノキシ]フェニル}スルホン二無水物、ビス{4−[4−(1,2−ジカルボキシ)フェノキシ]フェニル}スルフィド二無水物、ビス{4−[3−(1,2−ジカルボキシ)フェノキシ]フェニル}スルフィド二無水物、2,2−ビス{4−[4−(1,2−ジカルボキシ)フェノキシ]フェニル}−1,1,1,3,3,3−ヘキサフルプロパン二無水物、2,2−ビス{4−[3−(1,2−ジカルボキシ)フェノキシ]フェニル}−1,1,1,3,3,3−プロパン二無水物、2,3,6,7−ナフタレンテトラカルボン酸二無水物、1,4,5,8−ナフタレンテトラカルボン酸二無水物、1,2,5,6−ナフタレンテトラカルボン酸二無水物、1,2,3,4−ベンゼンテトラカルボン酸二無水物、3,4,9,10−ペリレンテトラカルボン酸二無水物、2,3,6,7−アントラセンテトラカルボン酸二無水物、1,2,7,8−フェナントレンテトラカルボン酸二無水物、ビス(1,3−ジヒドロ−1,3−ジオキソ−5−イソベンゾフランカルボン酸)−1,4−フェニレンエステル、ビス(1,3−ジヒドロ−1,3−ジオキソ−5−イソベンゾフランカルボン酸)−(2,2’,3,3’,5,5’−ヘキサメチル[1,1’−ビフェニル]−4,4’−ジイル)エステルが挙げられる。
<ポリアミド酸溶液の調製>
ポリイミドは、ポリイミド前駆体であるポリアミド酸の脱水環化により得られる。ポリアミド酸の製造方法は、公知のあらゆる方法を用いることができ、特に限定されない。例えば、酸二無水物とジアミンとを、略等モル量(95:100〜105:100のモル比)で有機溶媒中に溶解させ、酸二無水物とジアミンとの重合が完了するまで攪拌することによりポリアミド酸溶液が得られる。ポリアミド酸溶液の濃度は、通常5〜35重量%、好ましくは10〜30重量%である。この範囲の濃度である場合に、適切な分子量と粘度を有するポリアミド酸溶液が得られる。複数種のジアミンや複数種の酸二無水物を添加する場合は、一度に添加してもよく、添加回数を複数回に分けて添加してもよい。
ポリアミド酸溶液からポリイミド膜を作製する方法としては、(i)支持体上にポリアミド酸溶液を膜状に塗布し、溶媒を乾燥除去するとともにポリアミド酸をイミド化する方法;および(ii)ポリアミド酸溶液の状態でイミド化を行ってポリイミド樹脂を調製し、ポリイミド樹脂溶液を支持体上に膜状に塗布し、溶媒を乾燥除去する方法が挙げられる。有機溶媒に可溶なポリイミドは、上記(i)(ii)のいずれの方法も適用可能である。イミド化のために高温での加熱を必要とせず、透明性の高いポリイミドフィルムが得られることから、上記(ii)の方法が好ましい。
ポリイミド樹脂を、有機溶媒に溶解さることにより、ポリイミド溶液(製膜ドープともいう)を調製する。有機溶媒は、ポリイミド樹脂を溶解可溶なものであれば特に限定されず、例えば、ポリアミド酸の重合に用いる有機溶媒として先に例示したウレア系溶媒、スルホキシドあるいはスルホン系溶媒、アミド系溶媒、ハロゲン化アルキル系溶媒、芳香族炭化水素系溶媒、エーテル系溶媒等が挙げられる。これらの他に、アセトン、メチルエチルケトン、メチルプロピルケトン、メチルイソプロピルケトン、メチルイソブチルケトン、ジエチルケトン、シクロペンタノン、シクロヘキサノンおよびメチルシクロヘキサノン等のケトン系溶媒も、ポリイミド樹脂の溶媒として好適に用いられる。
(i)支持体上にポリアミド酸溶液を膜状に塗布し、溶媒を乾燥除去するとともにポリアミド酸をイミド化する方法;および(ii)ポリイミド樹脂溶液を支持体上に膜状に塗布し、溶媒を乾燥除去する方法のいずれにおいても、ポリイミド膜から完全に有機溶媒を除去することは困難であり、膜中にはある程度の有機溶媒が残存している。特に、(ii)の方法では、イミド化のための高温加熱を行わないため、ポリイミド膜中に有機溶媒が残存しやすい。また、厚みの大きい(例えば30μm以上の)ポリイミド膜は、表層付近の有機溶媒が揮発すると厚み方向の中心付近の溶媒の揮発が妨げられるため、長時間の加熱を行っても、残存溶媒量を十分に小さくすることが困難な場合がある。
製膜に用いた有機溶媒の除去に用いる処理用液体(第一処理用液体)は、グリコールエーテル系溶媒を含む。グリコールエーテル系溶媒としては、グリコールエーテル類、ジアルキルグリコールエーテル類、グリコールエーテルエステル類が挙げられる。
残存溶媒を含むポリイミド膜と処理用液体との接触方法は特に限定されず、液体中へのポリイミド膜の浸漬、ポリイミド膜への液体のスプレー、ポリイミド膜への液体の塗布、処理用液体の蒸気またはミストへのポリイミド膜の暴露等が挙げられる。
上記のように、ポリイミド膜を第一処理用液体と接触させることにより、製膜に用いた有機溶媒の残存量を低減できる。ポリイミドと第一処理用液体との接触処理後には、ポリイミド膜の表面に第一処理用液体が付着しているため、加熱、エアブロー、水洗等によりポリイミドフィルムの表面に付着した液体を除去してもよい。加熱を行う場合、加熱温度は、室温〜200℃が好ましく、70℃〜180℃がより好ましい。加熱時間は、加熱温度に応じてよって適宜設定すればよいが、生産性向上および溶媒の除去の観点から、1分〜120分が好ましく、5分〜90分がより好ましい。
上記により得られたポリイミドフィルムは、フレキシブルプリント配線板やディスプレイ等の基板材料、ディスプレイ用のカバーウインドウ等の一般的にポリイミドフィルムが用いられている各種の用途に適用できる。ポリイミドフィルムは、可視光において透明であってもよく、例えば、波長400nmにおける光透過率が70%以上または80%以上であってもよい。
IPA:イソプロピルアルコール
DMF:N,N−ジメチルホルムアミド
DCM:ジクロロメタン
TFMB:2,2’−ビス(トリフルオロメチル)ベンジジン
3,3’−DDS:3,3’−ジアミノジフェニルスルホン
6FDA:2,2−ビス(3,4−ジカルボキシフェニル)−1,1,1,3,3,3−ヘキサフルオロプロパン二無水物
BPDA:3,3’,4,4’−ビフェニルテトラカルボン酸二無水物
TMHQ:p−フェニレンビス(トリメリット酸無水物)
実施例および比較例のポリイミド膜の残存溶媒量は、下記の手順により測定した。
1,3−ジオキソラン約8.9gを溶媒として、ポリイミド膜約0.1gと内部標準物質としてのDEGBME(ジエチレングリコールブチルメチルエーテル)約1gを溶解させ、測定試料を調製した。この試料を、ガスクロマトグラフ(GC)装置,(島津製作所製)を用いて分析し、GCピーク面積と調製濃度から、ポリイミド膜に含まれる残存溶媒量を求めた。
反応容器にDMFを投入し、窒素雰囲気下で撹拌した。そこに、TFMB:17重量部、3,3’−DDS:6重量部、BPDA:6重量部、TMHQ:9重量部、および6FDA:17重量部を順次添加し、窒素雰囲気下にて5時間撹拌して、固形分濃度18%のポリアミド酸溶液を得た。その後、ポリアミド酸溶液100重量部に、イミド化触媒としてピリジン9重量部を添加し、完全に分散させた後、無水酢酸12重量部を添加し、120℃で2時間攪拌後、室温まで冷却した。溶液を攪拌しながら、IPAを投入し、ポリイミドを析出させた。その後、吸引ろ過を行い、IPAによる洗浄作業を4回繰り返した後、120℃に設定した真空オーブンで12時間乾燥させてポリイミド樹脂1を得た。
<ポリイミド膜の作製>
製造例1で得られたポリイミド樹脂2をDCMに溶解させて、固形分濃度が18重量%のポリイミド樹脂溶液を調製した。コンマコーターを用いて上記のポリイミド樹脂溶液を無アルカリガラス板上に塗布し、40℃で30分、70℃で60分乾燥した後、無アルカリガラス板から引き剥がして、厚さ約70μmのポリイミド膜を得た。このポリイミド膜の残存溶媒(DCM)量を測定したところ、8重量%であった。
上記のポリイミド膜を、面積約12cm2のサイズに切り出し、グリコールエーテル系溶媒(ジエチレングリコールモノブチルエーテル/水/界面活性剤(ポリオキシエチレンアルキルエーテル等)を81/5/14の重量比で含む混合液)に間浸漬した後に取り出し、表面に付着した溶媒を拭き取った。グリコールエーテル系溶媒の温度、および浸漬時間は表1に示す通りとした。
実施例1〜3と同様にしてポリイミド膜の製膜および乾燥を行い、浸漬処理を行わずに、170℃のオーブンで60分加熱した。
[比較例2,3]
浸漬処理の溶媒、温度および時間を表1に示す条件に変更した。それ以外は実施例1〜3と同様にして、ポリイミド膜の浸漬処理を実施した。
室温(25℃)のアセトンへの浸漬処理を実施したところ、ポリイミド膜が溶解した。
実施例および比較例の処理液の種類、温度および浸漬時間とともに、残存溶媒量を表1に示す。なお、比較例4ではポリイミド膜が溶解したため、残存溶媒量の評価は実施しなかった。
浸漬処理の条件を、温度60℃、浸漬時間5分に変更したこと以外は、実施例1〜3と同様にして、グリコールエーテル系溶媒へのポリイミド膜の浸漬処理を実施した。その後、表2に示す条件でオーブンでの加熱処理を実施した。
浸漬処理の条件を、温度60℃、浸漬時間5分に変更したこと以外は、実施例1〜3と同様にして、グリコールエーテル系溶媒へのポリイミド膜の浸漬処理を実施した。その後、表2「浸漬処理2」に示す条件で、溶媒(第二処理用液体)への浸漬処理を実施した。第二処理用液体として、実施例6,7では水を用い、実施例8,9では、エタノール/IPA/水(重量比45/5/50)の混合溶媒を用い、実施例10ではエタノール/メタノール(重量比90/10)の混合溶媒を用い、実施例11ではエタノールを用いた。第二処理用液体への浸漬処理後、さらに170℃のオーブンで20分加熱処理を行った。
比較例2(水への浸漬処理)および比較例3(IPAへの浸漬処理)のポリイミドフィルムを、170℃のオーブンで60分加熱した。
実施例4〜11および比較例5,6のポリイミド膜の処理条件(浸漬処理および加熱条件)、ならびに処理後の残存溶媒量を表2に示す。なお、表2において「浸漬処理1」は、乾燥後のポリイミド膜のグリコールエーテル系溶媒等への浸漬処理であり、「浸漬処理2」は浸漬処理1の後に実施した浸漬処理である。表2におけるGE(グリコールエーテル)は、グリコールエーテル系溶媒に含まれるジエチレングリコールモノブチルエーテルである。
Claims (14)
- 有機溶媒を含むポリイミド膜を、第一処理用液体と接触させる工程を有し、
前記第一処理用液体が、グリコールエーテル類、ジアルキルグリコールエーテル類、およびグリコールエーテルアセテート類からなる群から選択される1種以上のグリコールエーテル系溶媒を含む、ポリイミドフィルムの製造方法。 - 有機溶媒中にポリイミド樹脂が溶解した溶液を支持体上に塗布し、前記有機溶媒の一部を除去することにより、有機溶媒を含むポリイミド膜を作製する、請求項1に記載のポリイミドフィルムの製造方法。
- 前記支持体から前記ポリイミド膜を剥離した後、前記ポリイミド膜を前記第一処理用液体と接触させる、請求項2に記載のポリイミドフィルムの製造方法。
- 前記第一処理用液体は、引火点が50℃以上であるかまたは引火点を示さない、請求項1〜3のいずれか1項に記載のポリイミドフィルムの製造方法。
- 前記第一処理用液体が水を含む、請求項1〜4のいずれか1項に記載のポリイミドフィルムの製造方法。
- 前記ポリイミド膜を前記第一処理用液体に浸漬することにより、前記ポリイミド膜と前記第一処理用液体とを接触させる、請求項1〜5のいずれか1項に記載のポリイミドフィルムの製造方法。
- 前記ポリイミド膜を前記第一処理用液体と接触させる工程の後に、さらに第二処理用液体に接触させる工程を有し、
前記第二処理用液体が、アルコールを20重量%以上含む、請求項1〜6のいずれか1項に記載のポリイミドフィルムの製造方法。 - 前記第二処理用液体が、メタノール、エタノールおよびイソプロピルアルコールからなる群から選択される一種以上のアルコールを含む、請求項7に記載のポリイミドフィルムの製造方法。
- 前記第二処理用液体が、2種以上のアルコールを含む、請求項7または8に記載のポリイミドフィルムの製造方法。
- 前記第二処理用液体が、さらに水を含む、請求項7〜9のいずれか1項に記載のポリイミドフィルムの製造方法。
- 前記第二処理用液体は、アルコールの含有量が20重量%以上、60重量%未満であり、水の含有量が40重量%以上、80重量%以下である、請求項10に記載のポリイミドフィルムの製造方法。
- ポリイミドが、テトラカルボン酸二無水物成分の合計100モル%のうち、2,2−ビス(3,4−ジカルボキシフェニル)−1,1,1,3,3,3−ヘキサフルオロプロパン二無水物を20モル%以上含有する、請求項1〜11のいずれか1項に記載の透明ポリイミドフィルムの製造方法。
- ポリイミドが、ジアミン成分の合計100モル%のうち、2,2’−ビス(トリフルオロメチル)ベンジジンを20モル%以上含有する、請求項1〜12のいずれか1項に記載の透明ポリイミドフィルムの製造方法。
- ポリイミドフィルムの厚みが5μm以上である、請求項1〜13のいずれか1項に記載のポリイミドフィルムの製造方法。
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