JP2008064905A - 光学部品用フッ素化ポリイミド、およびそれを用いた光導波路 - Google Patents
光学部品用フッ素化ポリイミド、およびそれを用いた光導波路 Download PDFInfo
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- JP2008064905A JP2008064905A JP2006240960A JP2006240960A JP2008064905A JP 2008064905 A JP2008064905 A JP 2008064905A JP 2006240960 A JP2006240960 A JP 2006240960A JP 2006240960 A JP2006240960 A JP 2006240960A JP 2008064905 A JP2008064905 A JP 2008064905A
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- Prior art keywords
- polyimide
- bis
- dianhydride
- refractive index
- optical
- Prior art date
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- 229920001721 polyimide Polymers 0.000 title claims abstract description 53
- 239000004642 Polyimide Substances 0.000 title claims abstract description 46
- 230000003287 optical effect Effects 0.000 title claims abstract description 41
- 150000004985 diamines Chemical class 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 12
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 238000005452 bending Methods 0.000 claims description 10
- 238000005253 cladding Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
- 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 description 34
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 27
- -1 3,4-dicarboxyphenyl Chemical group 0.000 description 17
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 15
- 239000002904 solvent Substances 0.000 description 11
- 239000011162 core material Substances 0.000 description 9
- 229920005575 poly(amic acid) Polymers 0.000 description 7
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 6
- 239000009719 polyimide resin Substances 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 6
- NVKGJHAQGWCWDI-UHFFFAOYSA-N 4-[4-amino-2-(trifluoromethyl)phenyl]-3-(trifluoromethyl)aniline Chemical group FC(F)(F)C1=CC(N)=CC=C1C1=CC=C(N)C=C1C(F)(F)F NVKGJHAQGWCWDI-UHFFFAOYSA-N 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 125000006158 tetracarboxylic acid group Chemical group 0.000 description 5
- 239000002966 varnish Substances 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 4
- 239000010408 film Substances 0.000 description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000004528 spin coating Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- VLDPXPPHXDGHEW-UHFFFAOYSA-N 1-chloro-2-dichlorophosphoryloxybenzene Chemical compound ClC1=CC=CC=C1OP(Cl)(Cl)=O VLDPXPPHXDGHEW-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- BTANRVKWQNVYAZ-UHFFFAOYSA-N butan-2-ol Chemical compound CCC(C)O BTANRVKWQNVYAZ-UHFFFAOYSA-N 0.000 description 3
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- 238000006116 polymerization reaction Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 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 2
- HHLMWQDRYZAENA-UHFFFAOYSA-N 4-[4-[2-[4-(4-aminophenoxy)phenyl]-1,1,1,3,3,3-hexafluoropropan-2-yl]phenoxy]aniline Chemical compound C1=CC(N)=CC=C1OC1=CC=C(C(C=2C=CC(OC=3C=CC(N)=CC=3)=CC=2)(C(F)(F)F)C(F)(F)F)C=C1 HHLMWQDRYZAENA-UHFFFAOYSA-N 0.000 description 2
- ZHBXLZQQVCDGPA-UHFFFAOYSA-N 5-[(1,3-dioxo-2-benzofuran-5-yl)sulfonyl]-2-benzofuran-1,3-dione Chemical compound C1=C2C(=O)OC(=O)C2=CC(S(=O)(=O)C=2C=C3C(=O)OC(C3=CC=2)=O)=C1 ZHBXLZQQVCDGPA-UHFFFAOYSA-N 0.000 description 2
- MQJKPEGWNLWLTK-UHFFFAOYSA-N Dapsone Chemical compound C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=C1 MQJKPEGWNLWLTK-UHFFFAOYSA-N 0.000 description 2
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 239000012024 dehydrating agents Substances 0.000 description 2
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Natural products C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- QNVRIHYSUZMSGM-UHFFFAOYSA-N hexan-2-ol Chemical compound CCCCC(C)O QNVRIHYSUZMSGM-UHFFFAOYSA-N 0.000 description 2
- AWJUIBRHMBBTKR-UHFFFAOYSA-N isoquinoline Chemical compound C1=NC=CC2=CC=CC=C21 AWJUIBRHMBBTKR-UHFFFAOYSA-N 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- JYVLIDXNZAXMDK-UHFFFAOYSA-N pentan-2-ol Chemical compound CCCC(C)O JYVLIDXNZAXMDK-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- PHPTWVBSQRENOR-UHFFFAOYSA-N (3-amino-4-phenoxyphenyl)-(4-aminophenyl)methanone Chemical compound C1=CC(N)=CC=C1C(=O)C(C=C1N)=CC=C1OC1=CC=CC=C1 PHPTWVBSQRENOR-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
- NSGXIBWMJZWTPY-UHFFFAOYSA-N 1,1,1,3,3,3-hexafluoropropane Chemical compound FC(F)(F)CC(F)(F)F NSGXIBWMJZWTPY-UHFFFAOYSA-N 0.000 description 1
- RZTDESRVPFKCBH-UHFFFAOYSA-N 1-methyl-4-(4-methylphenyl)benzene Chemical group C1=CC(C)=CC=C1C1=CC=C(C)C=C1 RZTDESRVPFKCBH-UHFFFAOYSA-N 0.000 description 1
- QNVRIHYSUZMSGM-LURJTMIESA-N 2-Hexanol Natural products CCCC[C@H](C)O QNVRIHYSUZMSGM-LURJTMIESA-N 0.000 description 1
- ZBMISJGHVWNWTE-UHFFFAOYSA-N 3-(4-aminophenoxy)aniline Chemical compound C1=CC(N)=CC=C1OC1=CC=CC(N)=C1 ZBMISJGHVWNWTE-UHFFFAOYSA-N 0.000 description 1
- ZMPZWXKBGSQATE-UHFFFAOYSA-N 3-(4-aminophenyl)sulfonylaniline Chemical compound C1=CC(N)=CC=C1S(=O)(=O)C1=CC=CC(N)=C1 ZMPZWXKBGSQATE-UHFFFAOYSA-N 0.000 description 1
- SHZHLGBQLITWOB-UHFFFAOYSA-N 3-(trifluoromethyl)-6-[2-(trifluoromethyl)phenoxy]phthalic acid Chemical compound C1=CC(C(F)(F)F)=C(C(O)=O)C(C(=O)O)=C1OC1=CC=CC=C1C(F)(F)F SHZHLGBQLITWOB-UHFFFAOYSA-N 0.000 description 1
- GIDZGEJVGCDPLV-UHFFFAOYSA-N 3-[2-(2,3-dicarboxyphenoxy)-3,4-bis(trifluoromethyl)phenoxy]phthalic acid Chemical compound OC(=O)C1=CC=CC(OC=2C(=C(C(=CC=2)C(F)(F)F)C(F)(F)F)OC=2C(=C(C(O)=O)C=CC=2)C(O)=O)=C1C(O)=O GIDZGEJVGCDPLV-UHFFFAOYSA-N 0.000 description 1
- QBQWCUVAROAAQA-UHFFFAOYSA-N 3-[2-(2,3-dicarboxyphenoxy)-3-(trifluoromethyl)phenoxy]phthalic acid Chemical compound OC(=O)C1=CC=CC(OC=2C(=C(C=CC=2)C(F)(F)F)OC=2C(=C(C(O)=O)C=CC=2)C(O)=O)=C1C(O)=O QBQWCUVAROAAQA-UHFFFAOYSA-N 0.000 description 1
- MFTFTIALAXXIMU-UHFFFAOYSA-N 3-[4-[2-[4-(3-aminophenoxy)phenyl]-1,1,1,3,3,3-hexafluoropropan-2-yl]phenoxy]aniline Chemical compound NC1=CC=CC(OC=2C=CC(=CC=2)C(C=2C=CC(OC=3C=C(N)C=CC=3)=CC=2)(C(F)(F)F)C(F)(F)F)=C1 MFTFTIALAXXIMU-UHFFFAOYSA-N 0.000 description 1
- WCXGOVYROJJXHA-UHFFFAOYSA-N 3-[4-[4-(3-aminophenoxy)phenyl]sulfonylphenoxy]aniline Chemical compound NC1=CC=CC(OC=2C=CC(=CC=2)S(=O)(=O)C=2C=CC(OC=3C=C(N)C=CC=3)=CC=2)=C1 WCXGOVYROJJXHA-UHFFFAOYSA-N 0.000 description 1
- QWMSLLWUPKDBDV-UHFFFAOYSA-N 3-[[(3,4-dicarboxyphenyl)-dimethylsilyl]oxy-dimethylsilyl]phthalic acid Chemical compound C=1C=C(C(O)=O)C(C(O)=O)=CC=1[Si](C)(C)O[Si](C)(C)C1=CC=CC(C(O)=O)=C1C(O)=O QWMSLLWUPKDBDV-UHFFFAOYSA-N 0.000 description 1
- ITQTTZVARXURQS-UHFFFAOYSA-N 3-methylpyridine Chemical compound CC1=CC=CN=C1 ITQTTZVARXURQS-UHFFFAOYSA-N 0.000 description 1
- VXNBGANNWBFTNZ-UHFFFAOYSA-N 3-phenoxy-6-(trifluoromethyl)phthalic acid Chemical compound C1=CC(C(F)(F)F)=C(C(O)=O)C(C(=O)O)=C1OC1=CC=CC=C1 VXNBGANNWBFTNZ-UHFFFAOYSA-N 0.000 description 1
- FYYYKXFEKMGYLZ-UHFFFAOYSA-N 4-(1,3-dioxo-2-benzofuran-5-yl)-2-benzofuran-1,3-dione Chemical compound C=1C=C2C(=O)OC(=O)C2=CC=1C1=CC=CC2=C1C(=O)OC2=O FYYYKXFEKMGYLZ-UHFFFAOYSA-N 0.000 description 1
- DHRKBGDIJSRWIP-UHFFFAOYSA-N 4-(4-aminophenyl)-2,3-bis(trifluoromethyl)aniline Chemical group C1=CC(N)=CC=C1C1=CC=C(N)C(C(F)(F)F)=C1C(F)(F)F DHRKBGDIJSRWIP-UHFFFAOYSA-N 0.000 description 1
- HLBLWEWZXPIGSM-UHFFFAOYSA-N 4-Aminophenyl ether Chemical compound C1=CC(N)=CC=C1OC1=CC=C(N)C=C1 HLBLWEWZXPIGSM-UHFFFAOYSA-N 0.000 description 1
- APXJLYIVOFARRM-UHFFFAOYSA-N 4-[2-(3,4-dicarboxyphenyl)-1,1,1,3,3,3-hexafluoropropan-2-yl]phthalic acid Chemical compound C1=C(C(O)=O)C(C(=O)O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(C(O)=O)C(C(O)=O)=C1 APXJLYIVOFARRM-UHFFFAOYSA-N 0.000 description 1
- AJYDKROUZBIMLE-UHFFFAOYSA-N 4-[2-[2-[2-(4-aminophenoxy)phenyl]propan-2-yl]phenoxy]aniline Chemical compound C=1C=CC=C(OC=2C=CC(N)=CC=2)C=1C(C)(C)C1=CC=CC=C1OC1=CC=C(N)C=C1 AJYDKROUZBIMLE-UHFFFAOYSA-N 0.000 description 1
- HPUJEBAZZTZOFL-UHFFFAOYSA-N 4-[3-(4-aminophenoxy)-2,2-dimethylpropoxy]aniline Chemical compound C=1C=C(N)C=CC=1OCC(C)(C)COC1=CC=C(N)C=C1 HPUJEBAZZTZOFL-UHFFFAOYSA-N 0.000 description 1
- WJMZKMOQJDOAIE-UHFFFAOYSA-N 4-[3-[2-[3-(4-aminophenoxy)phenyl]-1,1,1,3,3,3-hexafluoropropan-2-yl]phenoxy]aniline Chemical compound C1=CC(N)=CC=C1OC1=CC=CC(C(C=2C=C(OC=3C=CC(N)=CC=3)C=CC=2)(C(F)(F)F)C(F)(F)F)=C1 WJMZKMOQJDOAIE-UHFFFAOYSA-N 0.000 description 1
- FNJFWOJEIGPYAS-UHFFFAOYSA-N 4-[4-(9h-fluoren-1-yl)phenoxy]phthalic acid Chemical compound C1=C(C(O)=O)C(C(=O)O)=CC=C1OC1=CC=C(C=2C3=C(C4=CC=CC=C4C3)C=CC=2)C=C1 FNJFWOJEIGPYAS-UHFFFAOYSA-N 0.000 description 1
- RIMWCPQXJPPTHR-UHFFFAOYSA-N 4-[4-[2-[3-[2-[4-[4-amino-2-(trifluoromethyl)phenoxy]phenyl]propan-2-yl]phenyl]propan-2-yl]phenoxy]-3-(trifluoromethyl)aniline Chemical compound C=1C=CC(C(C)(C)C=2C=CC(OC=3C(=CC(N)=CC=3)C(F)(F)F)=CC=2)=CC=1C(C)(C)C(C=C1)=CC=C1OC1=CC=C(N)C=C1C(F)(F)F RIMWCPQXJPPTHR-UHFFFAOYSA-N 0.000 description 1
- 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 1
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- QQGYZOYWNCKGEK-UHFFFAOYSA-N 5-[(1,3-dioxo-2-benzofuran-5-yl)oxy]-2-benzofuran-1,3-dione Chemical compound C1=C2C(=O)OC(=O)C2=CC(OC=2C=C3C(=O)OC(C3=CC=2)=O)=C1 QQGYZOYWNCKGEK-UHFFFAOYSA-N 0.000 description 1
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- FMACFWAQBPYRFO-UHFFFAOYSA-N 5-[9-(1,3-dioxo-2-benzofuran-5-yl)fluoren-9-yl]-2-benzofuran-1,3-dione Chemical compound C1=C2C(=O)OC(=O)C2=CC(C2(C3=CC=CC=C3C3=CC=CC=C32)C=2C=C3C(=O)OC(C3=CC=2)=O)=C1 FMACFWAQBPYRFO-UHFFFAOYSA-N 0.000 description 1
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- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
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- IVGBGCPUDUTSHT-UHFFFAOYSA-N [3-(3-aminobenzoyl)phenyl]-(3-aminophenyl)methanone Chemical compound NC1=CC=CC(C(=O)C=2C=C(C=CC=2)C(=O)C=2C=C(N)C=CC=2)=C1 IVGBGCPUDUTSHT-UHFFFAOYSA-N 0.000 description 1
- JYYBEGXDDHNJMX-UHFFFAOYSA-N [3-(4-amino-3-phenoxybenzoyl)phenyl]-(4-amino-3-phenoxyphenyl)methanone Chemical compound NC1=CC=C(C(=O)C=2C=C(C=CC=2)C(=O)C=2C=C(OC=3C=CC=CC=3)C(N)=CC=2)C=C1OC1=CC=CC=C1 JYYBEGXDDHNJMX-UHFFFAOYSA-N 0.000 description 1
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- 150000008065 acid anhydrides Chemical class 0.000 description 1
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 description 1
- UKJLNMAFNRKWGR-UHFFFAOYSA-N cyclohexatrienamine Chemical group NC1=CC=C=C[CH]1 UKJLNMAFNRKWGR-UHFFFAOYSA-N 0.000 description 1
- XCIXKGXIYUWCLL-UHFFFAOYSA-N cyclopentanol Chemical compound OC1CCCC1 XCIXKGXIYUWCLL-UHFFFAOYSA-N 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical group C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
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Abstract
【解決手段】低屈折率であるフッ素化ポリイミドにシリコーンジアミンを共重合させたポリイミドを使用する。(a)波長830nmにおける屈折率がTEモード、TMモードともに1.55以下、(b)屈曲半径0.38mm、荷重500gのMIT法による折り曲げ回数が10000回以上であることを特徴とする光学部品用フッ素化ポリイミド、特にポリイミドの合成原料としてシリコーンジアミンをジアミン原料重量の10重量%以上含む。
【選択図】 なし
Description
躍進するポリイミドの最新動向III p.231 本発明におけるMIT法による折り曲げ試験はMIT耐揉疲労試験機(D型)(東洋精機製)を用いて行われた。フィルムの膜厚は約50μm、屈曲半径は0.38mm、屈曲角度は135°、屈曲速度は175回/分、荷重は500gである。下限を10000回としたのは、現在一般的にフレキシブル基板用途に用いられているKapton(東レ・デュポン社製)やApical(カネカ製)などのポリイミドは10000回以上の耐折性を有しているので光電気混載基板として用いる場合、電気基板用ポリイミドに匹敵できるレベルの耐折性が光導波路にも必要となると考えられるためである。耐折性は高ければ高いほど良いので上限は設けないものとする。
(実施例1)
攪拌翼がついた容器に、モレキュラーシーブにて十分に脱水したジメチルホルムアミド(DMF)を48.0g入れ、2,2−ビス―[4−(4−アミノフェノキシ)フェニル]−1,1,1,3,3,3−ヘキサフルオロプロパン10.4g(20mmol)を加え、完全に溶解するまで攪拌した。この系を0℃に冷却し、2,2−ビス―((3,4−ジカルボキシフェニル)−ヘキサフルオロプロパン二無水物13.3g(30mmol)を徐々に加え、完全に溶解させた。次にシリコーンジアミンKF−8010(信越シリコーン製)を8.3g(10mmol)加えて4時間攪拌し、ポリアミド酸溶液(1)を得た。次に、上記溶液に、触媒であるβピコリンを2.8g(30mmol)、脱水剤である無水酢酸を18.4g(180mmol)添加し、100℃のオイルバス中で1時間攪拌してポリイミド溶液を得た。得られたポリイミド溶液を大量のイソプロピルアルコール(IPA)中に滴下し、ポリイミドを沈殿析出させた。濾過抽出によって得られたポリイミドはIPA中で撹拌洗浄させた。再び濾過を行った後、ポリイミドを80℃、減圧下にて充分に乾燥し、ポリイミド(1)を得た。そのうちの10gをDMF20gに溶解させてポリイミドワニス(1)を得た。
ポリイミドワニス(1)4mLをガラス基板(4インチ径)上に滴下し、2500rpmで2秒スピンコートした後に、80℃で10分乾燥させることにより厚み5μmの薄膜を得た。スピンコートして作製した薄膜の厚みは、前記とは別に酸化膜付シリコン基板上に前記同様の条件で薄膜を作製し、基板を割断して薄膜を剥がしてから、機械的に厚み測定を実施した。波長830nmにおける屈折率はプリズムカプラモデル2010(メトリコン社製)を使用して測定した。波長830nmにおける測定結果はTEモードで1.539であった。
MIT耐折試験はMIT耐揉疲労試験機(D型)(東洋精機製)を用いて行った。フィルムはポリイミドワニス(1)4mLをガラス基板(4インチ径)上に滴下し、450rpmで30秒スピンコートした後に、80℃で15分、250℃で5分間乾燥させることにより厚み52μmの薄膜を得た。試験条件は屈曲半径0.38mm、屈曲角度135°、屈曲速度175回/分、荷重500gであった。その結果19355回を記録した。
(比較例1)
ジアミンとして2,2´‐ビス(トリフルオロメチル)‐4,4´‐ジアミノビフェニルを用いたこと以外は実施例1と同様の方法でポリイミドフィルムを作製した。フィルムの膜厚は屈折率測定用が4μm、MIT試験用が48μmであった。実施例1と同様の方法で評価した結果、波長830nmにおける屈折率はTEモードで1.543、MIT耐折試験結果は7000回であった。
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KR20190039180A (ko) | 2016-08-10 | 2019-04-10 | 다이니폰 인사츠 가부시키가이샤 | 폴리이미드 필름, 적층체 및 디스플레이용 표면재 |
US10316155B2 (en) | 2014-06-16 | 2019-06-11 | Samsung Electronics., Ltd. | Composition for preparing polyimide-inorganic composite material, and article prepared by using same |
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