JP2022510909A - ペンダント親水性基を有する親水性フィルタ膜、ならびに関連する調製および使用の方法 - Google Patents
ペンダント親水性基を有する親水性フィルタ膜、ならびに関連する調製および使用の方法 Download PDFInfo
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- JP2022510909A JP2022510909A JP2021530102A JP2021530102A JP2022510909A JP 2022510909 A JP2022510909 A JP 2022510909A JP 2021530102 A JP2021530102 A JP 2021530102A JP 2021530102 A JP2021530102 A JP 2021530102A JP 2022510909 A JP2022510909 A JP 2022510909A
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- photoinitiator
- membrane
- filter membrane
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- SZHIIIPPJJXYRY-UHFFFAOYSA-M sodium;2-methylprop-2-ene-1-sulfonate Chemical compound [Na+].CC(=C)CS([O-])(=O)=O SZHIIIPPJJXYRY-UHFFFAOYSA-M 0.000 description 1
- BWYYYTVSBPRQCN-UHFFFAOYSA-M sodium;ethenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C=C BWYYYTVSBPRQCN-UHFFFAOYSA-M 0.000 description 1
- 238000000935 solvent evaporation Methods 0.000 description 1
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- 238000004611 spectroscopical analysis Methods 0.000 description 1
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- 125000000542 sulfonic acid group Chemical group 0.000 description 1
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- RRHXZLALVWBDKH-UHFFFAOYSA-M trimethyl-[2-(2-methylprop-2-enoyloxy)ethyl]azanium;chloride Chemical compound [Cl-].CC(=C)C(=O)OCC[N+](C)(C)C RRHXZLALVWBDKH-UHFFFAOYSA-M 0.000 description 1
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Abstract
Description
モノマーをナイロンにグラフトするための、脱イオン水とイソプロパノールとの混合物に溶解したベンゾフェノン
この実施例では、ナイロンを表面修飾する間のベンゾフェノンに対して、脱イオン水対イソプロパノールが50:50の混合物を溶媒として使用する方法が、100%のイソプロパノールよりも優れていることを説明する。
負に荷電したAMPSモノマーで修飾したナイロン表面
この実施例では、負に荷電したモノマー、2-アクリルアミド-2-メチル-1-プロパンスルホン酸(AMPS)によるナイロン膜の表面修飾について説明する。
表1A AMPSモノマー溶液
負に荷電したVPAモノマーで修飾したナイロン表面
この実施例では、負に荷電したモノマー、ビニルホスホン酸(Vinyl Phosphonic Acid:VPA)によるナイロン膜の表面修飾について説明する。
表1B VPAモノマー溶液
負に荷電したナイロン膜の色素結合能の定量
この実施例では、正に荷電した色素分子、メチレンブルーの取込み率を評価することによって、処理された多孔質ナイロン膜に存在する負電荷の度合いを近似できる方法について説明する。
正に荷電したAPTACモノマーで修飾したナイロン表面
この実施例では、正に荷電したモノマー、(3-アクリルアミドプロピル)トリメチルアンモニウムクロリド(APTAC)によるナイロン膜の表面修飾について説明する。
表1C APTACモノマー溶液
正に荷電したIMモノマーで修飾したナイロン表面
この実施例では、正に荷電したモノマー、1-ビニルイミダゾール(1-Vinyl Imidazole:IM)によるナイロン膜の表面修飾について説明する。
表1D IMモノマー溶液
正に荷電したAPTACモノマーで、風乾グラフトによって修飾したナイロン表面
この実施例では、風乾した光開始剤を用いたグラフトによる、正に荷電したモノマー、(3-アクリルアミドプロピル)トリメチルアンモニウムクロリド(APTAC)を用いたナイロン膜の表面修飾について説明する。
表1E APTACモノマー溶液
正に荷電したAPTACモノマーで風乾グラフトによって修飾した、アルカリプライミングしたナイロン表面。
この実施例では、風乾した光開始剤を用いたグラフトによる、正に荷電したモノマー、(3-アクリルアミドプロピル)トリメチルアンモニウムクロリド(APTAC)を用いて、アルカリプライミングしたナイロン膜の表面修飾について説明する。
表1F APTACモノマー溶液
正に荷電したナイロン膜の色素結合能の定量
この実施例では、負に荷電した色素分子、ポンソーSの取込み率を評価することによって、処理された多孔質ナイロン膜に存在する正電荷の度合いを近似できる方法について説明する。
ナイロン膜、負に荷電したナイロン膜、および正に荷電した膜のG25ビーズのフィルタ保持率の定量
以下の実施例では、荷電官能基をナイロン膜に付加的に導入することによって、膜の保持特性を維持または向上させることができることを説明する。
表1G G25ビーズのフィルタ保持率
元来のナイロン膜および負に荷電したナイロン膜を使用したDIW中の金属除去率の定量
以下の実施例では、ナイロン膜に負に荷電した官能基を付加的に導入することによって、膜の金属除去特性を向上させることができることを説明する。
表1H 水中での金属除去率
Claims (20)
- 多孔質ポリマーフィルタ膜であって、
親水性ポリマーであって、
ポリマー骨格と、
ヒドロキシル基、アミン基、カルボン酸基、またはそれらの組み合わせからなる群から選択されるペンダント親水性基と、
ペンダント親水性基とは異なるペンダントイオン性基と、
を含む親水性ポリマー
を含む、多孔質ポリマーフィルタ膜。 - ペンデントイオン性基が、フィルタ膜の非ふるい分け濾過性能を、ペンダントイオン性基を含まないこと以外は同じであるフィルタ膜より向上させるのに有効である、請求項1に記載のフィルタ膜。
- ポリマー骨格がポリアミドである、請求項1または2に記載のフィルタ膜。
- イオン性基が、カチオン性窒素含有基、アニオン性硫黄含有基、またはアニオン性リン含有基である、請求項1から3のいずれかに記載のフィルタ膜。
- イオン性基がカチオン性窒素含有環状芳香族基である、請求項1から4のいずれかに記載のフィルタ膜。
- イオン性基がカチオン性イミダゾールまたはカチオン性アミンである、請求項1から4のいずれかに記載のフィルタ膜。
- イオン性基がアニオン性ホスホン酸またはアニオン性スルホン酸である、請求項1から4のいずれかに記載のフィルタ膜。
- 残留光開始剤をさらに含む、請求項1から7のいずれかに記載の膜。
- 多孔質ポリマーフィルタ膜が少なくとも60パーセントの多孔度を有する、請求項1から8のいずれかに記載の膜。
- 多孔質ポリマーフィルタ膜が0.001~1.0ミクロンの範囲の孔径を有する、請求項1から9のいずれかに記載の膜。
- 請求項1から10のいずれかに記載の膜を含むフィルタカートリッジ。
- 請求項1から10のいずれかに記載の膜を含むフィルタ。
- 請求項1から10のいずれかに記載のフィルタ膜を使用する方法であって、溶媒含有液体を膜に通すことを含む、方法。
- イオン性基を親水性ポリマーにグラフトする方法であって、
溶媒および光開始剤を含む光開始剤溶液に親水性ポリマーを接触させて、親水性ポリマーの表面に光開始剤を配置することと、
光開始剤溶液に表面を接触させて表面に光開始剤を配置した後に、荷電モノマーを含むモノマー溶液に表面を接触させることと、
表面を電磁放射線に曝露して、イオン性基を親水性ポリマーにグラフトさせることと、
を含み、
荷電モノマーはイオン性基を含む、方法。 - 親水性ポリマーが多孔質ポリマーフィルタ膜である、請求項14に記載の方法。
- 溶媒が有機溶媒および水を含む、請求項14または15のいずれかに記載の方法。
- 請求項14から16のいずれかに記載の方法であって、
光開始剤溶液に表面を接触させた後に、
溶媒の蒸発によって表面を少なくとも部分的に乾燥させることと、
光開始剤溶液を少なくとも部分的に乾燥させた後に、モノマー溶液に膜を接触させることと、
を含む方法。 - 光開始剤がベンゾフェノンまたはベンゾフェノン誘導体である、請求項14から17のいずれかに記載の方法。
- 光開始剤溶液が0.1~2重量パーセントのベンゾフェノンまたはベンゾフェノン誘導体を含み、光開始剤溶液が水ならびにイソプロパノールおよびメタノールのうちの1つ以上を含む、請求項14から18のいずれかに記載の方法。
- 荷電モノマーが、ビニルイミダゾール、2-アクリルアミド-2-メチルプロパンスルホン酸、(3-アクリルアミドプロピル)トリメチルアンモニウムクロリド、ビニルスルホン酸、ビニルホスホン酸、アクリル酸、(ビニルベンジル)トリメチルアンモニウムクロリド、またはポリジアリルジメチルアンモニウムクロリドを含む、請求項14から19のいずれかに記載の方法。
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JP2022134720A JP2022174115A (ja) | 2018-11-30 | 2022-08-26 | ペンダント親水性基を有する親水性フィルタ膜、ならびに関連する調製および使用の方法 |
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US62/773,661 | 2018-11-30 | ||
PCT/US2019/059749 WO2020112306A1 (en) | 2018-11-30 | 2019-11-05 | Hydrophilic filter membrane with pendant hydrophilic groups, and related methods of preparation and use |
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WO2022125452A1 (en) * | 2020-12-11 | 2022-06-16 | Entegris, Inc. | Membranes for acid-sensitive solvents |
US20230149916A1 (en) * | 2021-11-12 | 2023-05-18 | Entegris, Inc. | Membrane for removing anionic materials |
CN115121193B (zh) * | 2022-07-25 | 2023-08-08 | 西安理工大学 | 荷正电AgO@MgO中空复合微球制备方法 |
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CN111249930B (zh) | 2024-04-05 |
US20200171442A1 (en) | 2020-06-04 |
KR20210072103A (ko) | 2021-06-16 |
EP3887028A4 (en) | 2022-11-30 |
CN212663244U (zh) | 2021-03-09 |
CN111249930A (zh) | 2020-06-09 |
TWI727527B (zh) | 2021-05-11 |
JP2022174115A (ja) | 2022-11-22 |
WO2020112306A1 (en) | 2020-06-04 |
TW202027841A (zh) | 2020-08-01 |
EP3887028A1 (en) | 2021-10-06 |
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