JP6054393B2 - アラミド共重合体の製造方法 - Google Patents
アラミド共重合体の製造方法 Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title description 7
- 239000004760 aramid Substances 0.000 title description 3
- 229920003235 aromatic polyamide Polymers 0.000 title description 3
- 229920000642 polymer Polymers 0.000 claims description 95
- 239000002904 solvent Substances 0.000 claims description 48
- 238000000034 method Methods 0.000 claims description 47
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 claims description 41
- LXEJRKJRKIFVNY-UHFFFAOYSA-N terephthaloyl chloride Chemical compound ClC(=O)C1=CC=C(C(Cl)=O)C=C1 LXEJRKJRKIFVNY-UHFFFAOYSA-N 0.000 claims description 40
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 18
- 239000003960 organic solvent Substances 0.000 claims description 16
- 239000002002 slurry Substances 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 11
- UKJLNMAFNRKWGR-UHFFFAOYSA-N cyclohexatrienamine Chemical group NC1=CC=C=C[CH]1 UKJLNMAFNRKWGR-UHFFFAOYSA-N 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- JWYUFVNJZUSCSM-UHFFFAOYSA-N 2-aminobenzimidazole Chemical compound C1=CC=C2NC(N)=NC2=C1 JWYUFVNJZUSCSM-UHFFFAOYSA-N 0.000 claims description 6
- 229920001730 Moisture cure polyurethane Polymers 0.000 claims 1
- 238000004090 dissolution Methods 0.000 claims 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 76
- 239000000835 fiber Substances 0.000 description 48
- 239000000243 solution Substances 0.000 description 44
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 30
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 27
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 19
- 229920001577 copolymer Polymers 0.000 description 19
- 150000003839 salts Chemical class 0.000 description 17
- 238000006386 neutralization reaction Methods 0.000 description 16
- 238000009987 spinning Methods 0.000 description 15
- 238000004140 cleaning Methods 0.000 description 12
- 238000005406 washing Methods 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 150000001412 amines Chemical class 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 229920001519 homopolymer Polymers 0.000 description 7
- 239000000178 monomer Substances 0.000 description 7
- 125000003277 amino group Chemical group 0.000 description 6
- WGQKYBSKWIADBV-UHFFFAOYSA-N benzylamine Chemical compound NCC1=CC=CC=C1 WGQKYBSKWIADBV-UHFFFAOYSA-N 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 238000001035 drying Methods 0.000 description 5
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000003643 water by type Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 150000004985 diamines Chemical class 0.000 description 3
- 239000005457 ice water Substances 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 230000009257 reactivity Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000013638 trimer Substances 0.000 description 3
- GEYOCULIXLDCMW-UHFFFAOYSA-N 1,2-phenylenediamine Chemical compound NC1=CC=CC=C1N GEYOCULIXLDCMW-UHFFFAOYSA-N 0.000 description 2
- KAESVJOAVNADME-UHFFFAOYSA-N 1H-pyrrole Natural products C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- XAFOTXWPFVZQAZ-UHFFFAOYSA-N Nc(cc1)ccc1-c1nc2cc(N)ccc2[nH]1 Chemical compound Nc(cc1)ccc1-c1nc2cc(N)ccc2[nH]1 XAFOTXWPFVZQAZ-UHFFFAOYSA-N 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- -1 azole amine Chemical class 0.000 description 2
- 239000013626 chemical specie Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000010828 elution Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 2
- QLSWIGRIBOSFMV-UHFFFAOYSA-N 1h-pyrrol-2-amine Chemical compound NC1=CC=CN1 QLSWIGRIBOSFMV-UHFFFAOYSA-N 0.000 description 1
- PVNHYDDCQMHWAL-UHFFFAOYSA-N 2-phenyl-1h-benzimidazol-4-amine Chemical compound N=1C=2C(N)=CC=CC=2NC=1C1=CC=CC=C1 PVNHYDDCQMHWAL-UHFFFAOYSA-N 0.000 description 1
- 230000005526 G1 to G0 transition Effects 0.000 description 1
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 1
- DGJYUDIGRNGCHJ-UHFFFAOYSA-N Nc(cc1)ccc1-c1nc(cc(cc2)NC(c(cc3)ccc3C(Nc(cc3)cc4c3[nH]c(-c(cc3)ccc3N)n4)=O)=O)c2[nH]1 Chemical compound Nc(cc1)ccc1-c1nc(cc(cc2)NC(c(cc3)ccc3C(Nc(cc3)cc4c3[nH]c(-c(cc3)ccc3N)n4)=O)=O)c2[nH]1 DGJYUDIGRNGCHJ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000013375 chromatographic separation Methods 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 125000002883 imidazolyl group Chemical group 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000012453 solvate Substances 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229920006027 ternary co-polymer Polymers 0.000 description 1
- 125000005270 trialkylamine group Chemical group 0.000 description 1
- 238000002166 wet spinning Methods 0.000 description 1
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Classifications
-
- 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
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
- C08K5/3415—Five-membered rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
- C08G69/265—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids from at least two different diamines or at least two different dicarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
- C08G69/32—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids from aromatic diamines and aromatic dicarboxylic acids with both amino and carboxylic groups aromatically bound
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/18—Polybenzimidazoles
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/16—Halogen-containing compounds
-
- 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
- C08K5/16—Nitrogen-containing compounds
- C08K5/20—Carboxylic acid amides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/10—Polyamides derived from aromatically bound amino and carboxyl groups of amino-carboxylic acids or of polyamines and polycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
- C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyamides (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Artificial Filaments (AREA)
Description
Vinh=ln(Vrel)/C
式中、lnは自然対数関数であり、Cはポリマー溶液の濃度である。Vrelは、無名数の比であり、従ってVinhは、通常、グラム当たりのデシリットル(「dl/g」)として、濃度の逆数の単位で表される。
本明細書で使用する場合、化学種の「残基」という用語は、特定の反応式中の化学種から得られる生成物またはその後の配合物もしくは化学製品である部分を指し、その部分が実際にその化学種から得られるかどうかは関係ない。従って、p−フェニレンジアミンの残基を含む共重合体は、式:
固有粘度は、ポリマーが濃度96重量%の濃硫酸にポリマー濃度(C)0.5g/dlおよび温度25℃で溶解している溶液を使用して測定することができる。次いで、固有粘度をln(tpoly/tsolv)/C(式中、tpolyはポリマー溶液の滴下時間であり、tsolvは純粋な溶媒の滴下時間である)として算出する。
IPCピークブロック比=共重合体のピークまでの分/単独重合体のピークまでの分
によりIPCピークブロック比を算出する。
ポリマーの製造:
バスケット攪拌機および窒素入口/出口を備えた1リットルの反応釜に、NMP/CaCl2プレミックス(8.3重量%(塩の重量/塩と溶媒の全重量))83.75グラム、NMP(N−メチル−2−ピロリドン]163.30gおよびDAPBI12.288g(0.055モル)を添加し、10分間撹拌した。この時点ではDAPBIは溶媒系に完全に溶解しなかった。内容物を氷水浴中で撹拌し、混合物を10℃未満に冷却した。TCl(テレフタロイルジクロライド)5.562グラム(0.027モル)を全部一度に添加し、5分間撹拌した。この時点で、DAPBIがTClと反応したため溶液は透明になった。氷水浴を取り除き、PPD(p−フェニレンジアミン)2.539グラム(0.023モル)を添加し、PPDが全部、溶液に溶解するまで撹拌した。TCl10.340グラム(0.051モル)を全部一度に添加し、撹拌した。溶液は、非常に粘度が高くなり、約4分でゲル化した。次いで、高粘度の反応混合物をさらに25分間撹拌した。得られたポリマーをWaring(登録商標)Blenderに移して、小粒子に粉砕し、水で数回洗浄して、溶媒(NMP/CaCl2)および反応により生じた過剰のHClを除去した。次いで、ポリマーを炭酸水素ナトリウムで中和し、最後に水で数回洗浄して、中性のポリマーを得た。ポリマーをトレイに移し入れ、窒素をスイープガスとして用いた120℃の真空オーブンで終夜乾燥した。ポリマーの固有粘度は8.15であった。
上記ポリマー0.125グラムをガラスバイアル内の溶媒(DMAc/LiCl、4重量%(塩の重量/塩と溶媒の全重量))25mlに添加し、振盪機で室温にて撹拌した。ポリマーが完全に溶解し、透明な溶液を得た。
この実施例は、DAPBIとPPDの両方を溶媒に溶解した溶液にTClを添加する従来の方法による、NMP/CaCl2溶媒中でのDAPBI/PPD−T共重合体の製造について説明する。
比較例のポリマー0.125グラムをガラスバイアル内の(DMAc/LiCl、4重量%(塩の重量/塩と溶媒の全重量))25mlに添加し、振盪機で室温にて撹拌した。ポリマーは全く溶解せず、膨潤を示さなかった。
前述の試験方法で、実施例1および比較例のポリマーのIPCピークブロック比を求めた。結果を下記に示す。
1. 2−(4−アミノフェニル)−5(6)アミノベンズイミダゾール(DAPBI)、p−フェニレンジアミン(PPD)、およびテレフタロイルジクロライドの残基を含むポリマーの製造方法であって:
a)有機溶媒と無機塩とを含む溶媒系にDAPBIを懸濁したスラリーを形成する工程;
b)DAPBIの量に対して、化学量論量未満のテレフタロイルジクロライドを前記スラリーに添加する工程;
c)前記スラリーを撹拌して前記DAPBIとテレフタロイルジクロライドを反応させ、オリゴマー溶液を生成する工程;
d)PPDを前記オリゴマー溶液に添加し、前記PPDが実質的に全部溶解するまで撹拌した後、テレフタロイルジクロライドを添加してプレポリマー溶液を生成する工程;および
e)前記プレポリマー溶液からポリマーを生成する工程;
を含む方法。
2. 添加されるテレフタロイルジクロライドの全量が、DAPBIとPPDとを含む全ジアミンに対する化学量論量である、上記1に記載の方法。
3. 前記有機溶媒が、N−メチル−2−ピロリドン(NMP)またはジメチルアセトアミド(DMAC)である、上記1または2に記載の方法。
4. 前記無機塩がLiClまたはCaCl 2 である、上記1〜3のいずれか一項に記載の方法。
5. 前記溶媒系がNMP/CaCl 2 である、上記1〜4のいずれか一項に記載の方法。
6. 工程e)が撹拌下で行われる、上記1〜5のいずれか一項に記載の方法。
7. 前記ポリマーを単離する工程をさらに含む、上記1〜6のいずれか一項に記載の方法。
8. 前記ポリマーを粉砕する工程をさらに含む、上記7に記載の方法。
9. 前記ポリマーを1つ以上の洗浄工程、中和工程、またはその両方で処理することをさらに含む、上記7に記載の方法。
10. 前記粉砕されたポリマーを1つ以上の洗浄工程、中和工程、またはその両方で処理することをさらに含む、上記8に記載の方法。
11. 硫酸を含む溶媒に前記ポリマーを溶解し、繊維の紡糸に好適な溶液を形成する工程をさらに含む、上記9に記載の方法。
12. 硫酸を含む溶媒に前記ポリマーを溶解し、繊維の紡糸に好適な溶液を形成する工程をさらに含む、上記10に記載の方法。
13. N−メチル−2−ピロリドン(NMP)またはジメチルアセトアミド(DMAC)と無機塩とを含む溶媒に前記ポリマーを溶解し、繊維の紡糸に好適な溶液を形成する工程をさらに含む、上記9に記載の方法。
14. N−メチル−2−ピロリドン(NMP)またはジメチルアセトアミド(DMAC)と無機塩とを含む溶媒に前記ポリマーを溶解し、繊維の紡糸に好適な溶液を形成する工程をさらに含む、上記10に記載の方法。
15. DAPBIとフェニレンジアミンが0.25〜4.0の範囲のモル比で存在する、上記1〜14のいずれか一項に記載の方法。
16. NMP/CaCl 2 のCaCl 2 重量パーセントが1〜10%の範囲である、上記5に記載の方法。
17. 工程(a)のDAPBIである前記スラリーの量が0.5〜10重量%の範囲である、上記1〜16のいずれか一項に記載の方法。
18. 工程(d)の前記オリゴマー溶液に溶解されるp−フェニレンジアミンの量が0.2〜6.0重量%の範囲である、上記1〜17のいずれか一項に記載の方法。
Claims (1)
- 2−(4−アミノフェニル)−5(6)アミノベンズイミダゾール(DAPBI)、p−フェニレンジアミン(PPD)、およびテレフタロイルジクロライドの残基を含むポリマーの製造方法であって:
a)有機溶媒と無機塩とを含む溶媒系にDAPBIを懸濁したスラリーを形成する工程;
b)DAPBIの量に対して、化学量論量未満のテレフタロイルジクロライドを前記スラリーに添加する工程;
c)前記スラリーを撹拌して前記DAPBIとテレフタロイルジクロライドを反応させ、オリゴマー溶液を生成する工程;
d)PPDを前記オリゴマー溶液に添加し、前記PPDが全部溶解するまで撹拌した後、テレフタロイルジクロライドを添加してプレポリマー溶液を生成する工程;および
e)前記プレポリマー溶液からポリマーを生成する工程;
を含む方法。
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US61/513,056 | 2011-07-29 | ||
PCT/US2012/048428 WO2013019568A1 (en) | 2011-07-29 | 2012-07-27 | Process of forming an aramid copolymer |
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