JP2001040090A5 - - Google Patents
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- JP2001040090A5 JP2001040090A5 JP2000010395A JP2000010395A JP2001040090A5 JP 2001040090 A5 JP2001040090 A5 JP 2001040090A5 JP 2000010395 A JP2000010395 A JP 2000010395A JP 2000010395 A JP2000010395 A JP 2000010395A JP 2001040090 A5 JP2001040090 A5 JP 2001040090A5
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そこで、例えば特開平8−100064号公報には、有機極性溶媒及びポリハロ芳香族化合物を含む混合物中にアルカリ金属水硫化物及び/またはアルカリ金属硫化物からなる含水スルフィド化剤を反応混合物から水が除去され得る速度で導入して反応を行うことによって、高分子量かつ直鎖状のポリアリーレンスルフィドを製造し、ポリアリーレンスルフィドの靱性を改善する技術が開示されている。 Thus, for example, Japanese Patent Application Laid- Open No. H8-100604 discloses that a mixture containing an organic polar solvent and a polyhaloaromatic compound is mixed with a water-containing sulfidizing agent comprising an alkali metal hydrosulfide and / or an alkali metal sulfide to form water from the reaction mixture. There is disclosed a technique for producing a high-molecular-weight, linear polyarylene sulfide by introducing a reaction at a rate at which it can be removed, and improving the toughness of the polyarylene sulfide.
【0004】
【発明が解決しようとする課題】
しかし、前記特開平8−100064号公報の方法によって得られるポリアリーレンスルフィドは、分子量が高く靱性が多少改善されるものの、未だ十分でなものではなかった。また、ポリアリーレンスルフィドの靱性を改善する為に、シランカップリング剤で変成する方法も知られているが、前記特開平8−100064号公報の方法によって得られるポリアリーレンスルフィドは、分子量は高められるものの、酸又はアルカリとの反応活性点が少ないためシランカップリング剤等のカップリング剤で変性することが困難であり、結局、実用的な靱性が得られないものであった。
[0004]
[Problems to be solved by the invention]
However, the polyarylene sulfide obtained by the method disclosed in Japanese Patent Application Laid- Open No. Hei 8-100604 has a high molecular weight and a slight improvement in toughness, but is not yet satisfactory. In order to improve the toughness of the polyarylene sulfide, a method of modifying with a silane coupling agent is also known. However, the molecular weight of the polyarylene sulfide obtained by the method of JP-A- 8-100604 is increased. However, since it has few active sites for reaction with acids or alkalis, it is difficult to modify it with a coupling agent such as a silane coupling agent, and as a result, practical toughness cannot be obtained.
実施例1温度センサー、冷却塔、滴下槽、滴下ポンプ、留出物分離槽を連結した撹拌翼付ステンレス製(チタンライニング)4リットルオートクレーブに工程1:パラジクロロベンゼン(以下p−DCBと略)735.0g(5.0モル)、N−メチル−2−ピロリドン(以下NMPと略)1240g(12.5モル)、48%水酸化ナトリウム17g(0.2モル)を室温で仕込み、撹拌しながら窒素雰囲気下で100℃まで30分かけて昇温し系を閉じ、更に220℃まで50分かけて昇温する。
工程2:次いで、その温度で脱水しながら、硫化ナトリウム9水和物(以下Na 2 S・9H 2 Oと略)1200g(5.0モル)を120℃に加熱し33重量%水溶液としたものを、4時間かけて滴下した。滴下中の反応系の圧力は0.1MPaであった。なお、滴下中に水と共沸的に留出されるp−DCBは連続的にオートクレーブに返した。滴下中の留出液の分析をしたところ、水が805g、NMP21gであった。Na 2 S水溶液の滴下が終了した後、分離層とオートクレーブの間を遮断し(分離層とオートクレーブ本体との間のバルブを閉じ)、220℃から250まで1時間かけて昇温し、その温度で1時間保持して反応を終了した。
Example 1 Step 1: Paradichlorobenzene (hereinafter abbreviated as p-DCB) 735 in a stainless steel (titanium-lined) 4-liter autoclave with stirring blades connected to a temperature sensor, a cooling tower, a dropping tank, a dropping pump, and a distillate separation tank. 2.0 g (5.0 mol), 1240 g (12.5 mol) of N-methyl-2-pyrrolidone (hereinafter abbreviated as NMP), and 17 g (0.2 mol) of 48% sodium hydroxide were charged at room temperature and stirred. The temperature is raised to 100 ° C. over 30 minutes in a nitrogen atmosphere to close the system, and the temperature is further raised to 220 ° C. over 50 minutes.
Step 2: Then, while dehydrating at that temperature, 1200 g (5.0 mol) of sodium sulfide 9 hydrate (hereinafter abbreviated as Na 2 S.9H 2 O) was heated to 120 ° C. to obtain a 33% by weight aqueous solution. Was added dropwise over 4 hours. The pressure of the reaction system during the dropwise addition was 0.1 MPa. The p-DCB distilled azeotropically with water during the dropwise addition was continuously returned to the autoclave. Analysis of the distillate during the dropping revealed that water was 805 g and NMP was 21 g. After the dropping of the aqueous Na 2 S solution is completed, the space between the separation layer and the autoclave is shut off (the valve between the separation layer and the autoclave body is closed), and the temperature is raised from 220 ° C. to 250 over 1 hour. For 1 hour to complete the reaction.
実施例5工程1におけるNa 2 S水溶液の代わりにNaSH・H 2 O 370g(5.0モル)を120℃に加熱し75重量%水溶液としたものを用いて、実施例1と同様に実施した(使用したNMPに対する系内の水分量は0.04モル%となる様実施)。溶融粘度は610ポイズ、反応性末端基量は18.5μmol/gであった。また、実施例1同様に曲げ試験を行い、その結果を表2に示した。 Example 5 In the same manner as in Example 1, 370 g (5.0 mol) of NaSH.H 2 O was heated to 120 ° C. to obtain a 75% by weight aqueous solution instead of the Na 2 S aqueous solution in Step 1, (Implementation so that the water content in the system with respect to the NMP used was 0.04 mol%). The melt viscosity was 610 poise and the amount of reactive terminal groups was 18.5 μmol / g. A bending test was performed in the same manner as in Example 1. The results are shown in Table 2.
(カルボキシル基又はその金属塩量の測定)各実施例及び比較例で得られた重合体10gを少量のメタノールで湿潤させ、そこに100mlの水を加えてスラリー化した。そこに希塩酸5mlを加えて、スラリーを酸性にした。次に濾過を行い、ろ液中に塩酸が検出されなくなるまで水で洗浄を繰り返し、乾燥を行った重合体をプレス機でディスク状にプレスし、製顕微FT−IR装置で測定を行った。これら吸収のうち2666cm −1 の吸収に対する1700cm−1の吸収の相対強度を求めた。 (Measurement of Carboxyl Group or Its Metal Salt Amount) 10 g of the polymer obtained in each of Examples and Comparative Examples was wetted with a small amount of methanol, and 100 ml of water was added thereto to form a slurry. The slurry was acidified by adding 5 ml of diluted hydrochloric acid thereto. Next, filtration was performed, washing with water was repeated until hydrochloric acid was not detected in the filtrate, and the dried polymer was pressed into a disk shape with a press machine, and the measurement was performed with a microscope FT-IR apparatus. Among these absorptions, the relative intensity of the absorption at 1700 cm −1 with respect to the absorption at 2666 cm −1 was determined.
Priority Applications (1)
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JP2000010395A JP2001040090A (en) | 1999-05-21 | 2000-01-19 | Polyarylene sulfide, its production and polyarylene sulfide composition |
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JP11-141419 | 1999-05-21 | ||
JP14141999 | 1999-05-21 | ||
JP2000010395A JP2001040090A (en) | 1999-05-21 | 2000-01-19 | Polyarylene sulfide, its production and polyarylene sulfide composition |
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JP2001040090A JP2001040090A (en) | 2001-02-13 |
JP2001040090A5 true JP2001040090A5 (en) | 2007-03-08 |
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Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4608715B2 (en) * | 1999-12-24 | 2011-01-12 | Dic株式会社 | Process for producing polyarylene sulfide |
JP2001279097A (en) * | 2000-03-31 | 2001-10-10 | Dainippon Ink & Chem Inc | Polyarylene sulfide composition |
JP4700277B2 (en) | 2003-01-21 | 2011-06-15 | 株式会社クレハ | Polyarylene sulfide and method for producing the same |
JP4782383B2 (en) | 2004-02-12 | 2011-09-28 | 株式会社クレハ | Polyarylene sulfide and method for producing the same |
JP4633390B2 (en) * | 2004-06-15 | 2011-02-16 | ポリプラスチックス株式会社 | Polyarylene sulfide resin composition |
KR101214316B1 (en) * | 2004-10-29 | 2012-12-21 | 가부시끼가이샤 구레하 | Process for Producing Polyarylene Sulfide |
US7312300B2 (en) * | 2005-02-22 | 2007-12-25 | Chevron Phillips Chemical Company Lp | Inferred water analysis in polyphenylene sulfide production |
EP2055732B1 (en) | 2006-08-17 | 2015-12-30 | DIC Corporation | Method for producing polyarylene sulfide resin |
WO2008020554A1 (en) * | 2006-08-17 | 2008-02-21 | Dic Corporation | Method for producing acid radical-containing polyarylene sulfide resin |
JP4957338B2 (en) * | 2007-03-30 | 2012-06-20 | Dic株式会社 | Method for producing polyarylene sulfide resin |
JP4957337B2 (en) * | 2007-03-30 | 2012-06-20 | Dic株式会社 | Method for producing polyarylene sulfide resin |
JP5110385B2 (en) * | 2008-08-08 | 2012-12-26 | Dic株式会社 | Process for producing carboxyl-containing polyarylene sulfide resin |
JP5888556B2 (en) * | 2012-02-02 | 2016-03-22 | Dic株式会社 | Cross-linked polyarylene sulfide resin and method for producing the same |
JP6797687B2 (en) | 2013-09-25 | 2020-12-09 | ティコナ・エルエルシー | Polyarylene sulfide crystallization method |
WO2015047716A1 (en) | 2013-09-25 | 2015-04-02 | Ticona Llc | Salt byproduct separation during formation of polyarylene sulfide |
JP2016536377A (en) | 2013-09-25 | 2016-11-24 | ティコナ・エルエルシー | A scrubbing process to form polyarylene sulfides |
JP6797686B2 (en) | 2013-09-25 | 2020-12-09 | ティコナ・エルエルシー | Multi-step process for forming polyarylene sulfide |
JP2016536376A (en) | 2013-09-25 | 2016-11-24 | ティコナ・エルエルシー | Method for forming low halogen content polyarylene sulfides |
JP6517789B2 (en) | 2013-09-25 | 2019-05-22 | ティコナ・エルエルシー | Method and system for separating polymer from multiple compounds |
WO2016133738A1 (en) | 2015-02-19 | 2016-08-25 | Ticona Llc | Method for forming a low viscosity polyarylene sulfide |
WO2016133740A1 (en) | 2015-02-19 | 2016-08-25 | Ticona Llc | Method of polyarylene sulfide precipitation |
WO2016133739A1 (en) | 2015-02-19 | 2016-08-25 | Ticona Llc | Method for forming a high molecular weight polyarylene sulfide |
WO2016153610A1 (en) | 2015-03-25 | 2016-09-29 | Ticona Llc | Technique for forming a high melt viscosity polyarylene sulfide |
JP6691660B2 (en) * | 2015-11-20 | 2020-05-13 | Dic株式会社 | Method for producing polyarylene sulfide resin |
US11407861B2 (en) | 2019-06-28 | 2022-08-09 | Ticona Llc | Method for forming a polyarylene sulfide |
US11319441B2 (en) | 2019-12-20 | 2022-05-03 | Ticona Llc | Method for forming a polyarylene sulfide |
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