JP2020504776A - 超疎水性膜を用いた振動噴射による均一なポリマービーズの生産方法 - Google Patents
超疎水性膜を用いた振動噴射による均一なポリマービーズの生産方法 Download PDFInfo
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- JP2020504776A JP2020504776A JP2019554010A JP2019554010A JP2020504776A JP 2020504776 A JP2020504776 A JP 2020504776A JP 2019554010 A JP2019554010 A JP 2019554010A JP 2019554010 A JP2019554010 A JP 2019554010A JP 2020504776 A JP2020504776 A JP 2020504776A
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- membrane
- agarose
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- polytetrafluoroethylene
- beads
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Classifications
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Abstract
Description
本発明は、一般に球状ポリマービーズの調製に関し、より詳細には超疎水性膜を用いた振動噴射による、実質的に均一の粒径を有する球状ポリマービーズの調製に関する。
サイズ範囲が直径約1から300μmの球状ポリマービーズは、様々な用途で有用である。たとえば、そのようなポリマービーズはとりわけ、イオン交換樹脂用の基材のような多様なクロマトグラフィーの用途で、より大きなサイズのポリマー粒子を調製するための種結晶として、血球計数器やエアロゾル機器の較正基準として、公害防止設備中で、また写真乳剤用のスペーサとして使用されている。
本発明の一目的は、超疎水性膜を用いた振動噴射を用いて、均一の粒径および狭い粒径分布を有する均一のサイズの球状ポリマービーズを調製するための方法を提供することである。具体的には、そのポリマービーズはとりわけアガロースおよびキチン、ペクチン、ゼラチン、ジェラン、セルロース、アルギン酸塩、カラゲナン、デンプン、キサンタンガム等の他の天然のゲル化親水コロイド等の水溶性(親水性)物質から製造される。加えて、PVA(ポリビニルアセテート)、PVP(ポリビニルピロリドン)およびPEG(ポリエチレングリコール)等の合成のゲル化ポリマーを用いてもよい。さらに、とりわけアクリル等の重合性水溶性モノマーを用いてもよい。本明細書では、これらの出発材料はそれぞれ「ポリマー」または「親水コロイド」を形成するものと同じ意味とされる。これらの出発材料のうち、アガロースが好ましい。アガロースビーズはたとえばクロマトグラフィー媒体中に基材を提供するので有用である。アガロースは耐酸性、耐塩基性かつ耐溶媒性で、親水性で、多孔性および官能化のための多数のヒドロキシル基を有する。米国特許第7,678,302号明細書を参照されたい。
本明細書に記載されている本発明は、記載されている特定の方式、手順および試薬は変動し得るので、これらに限定されないことが理解されよう。本明細書で用いている専門用語は特定の実施形態のみを説明する目的のものであり、本発明の適用範囲を限定しようとするものではないことも理解されたい。別に定義しない限り、本明細書で用いる全技術用語および科学用語は本発明が属する技術分野の当業者が通常理解しているのと同一の意味を有するものとする。本明細書に記載されているのと同様のまたは同等の方法および材料であればいずれも本発明の実施または試験に用いることができる。
超疎水性表面をもつ膜の調製。1cm2当たり約1500個の細孔を有し、各細孔が直径16μmであり、電鋳により形成されるニッケル板を、二重壁の円筒形の缶形(「缶」)になるように組み立てた。次にこの缶を30分間10%水酸化ナトリウム溶液中に浸し、次いで水洗浄することにより、洗浄した。次にこの缶を30分間5%クエン酸溶液中に浸し、次いで水洗浄した。次にこの洗浄した缶を室温で1分間亜リン酸ニッケル水溶液(ニッケル80g/l(70〜90g/l)リン25g/l(20〜30g/l))中に浸した。この缶を85℃に保持したPTFE無電解ニッケルめっき溶液を含むタンクに移し、10〜30分間めっきを続けた。(Caswell Europeから)。次にこの缶を超音波水浴中で音波処理洗浄し、160℃で2時間乾燥させた。次にこの缶をトルエン浴中で3回洗浄し、次に60℃で1時間乾燥させた。次にPFTEコーティング缶を周囲温度で2時間0.5%Teflon AF(Sigma Aldrich CAS 37626−13−4)の電子液体Fluorinert FC−70(3M Performance Materials、セントポール、ミネソタ州から入手)溶液中に浸した。次にTeflon AFコーティング缶を純粋なFluorinert FC−70で洗い流し、最後に160℃で2時間乾燥させた。
均一なアガロースビーズ(体積平均直径82μm)の調製
図1に示す器具構成を用いて均一の粒径のアガロースビーズを製造した。下記を含むアガロース相(分散相)を中性pHで調製した:
均一なアガロースビーズ(体積平均直径63μm)の調製
膜振動の振動数が21.5Hzで振幅が3mmであることを除いては、実施例2を繰り返した。アガロースビーズを油から分離し洗浄した後、以下の特性を認めた:体積平均粒径は63μm、均一性係数は1.20、SPAN=0.32であった。
均一なアガロースビーズ(体積平均直径71μm)の調製
膜振動の振動数が21Hzで振幅が2.8mmであることを除いては、実施例2を繰り返した。アガロースビーズを油から分離し洗浄した後、以下の特性を認めた:体積平均粒径は71μm、均一性係数は1.29、SPAN=0.45であった。
膜振動の振動数が21.5Hzで振幅が2.8mmであることを除いては、実施例2を繰り返した。アガロースビーズを油から分離し洗浄した後、以下の特性を認めた:体積平均粒径は66μm、均一性係数は1.23、SPAN=0.35であった。
疎水性膜および超疎水性膜をもつ均一なアガロースビーズの調製。
40×40mm缶1個を疎水性処理および超疎水性処理後に用いた。最初に純ニッケル膜を周囲温度で2時間0.5%Teflon AF(Sigma Aldrich CAS 37626−13−4)の電子液体Fluorinert FC−70(3M Performance Materials、セントポール、ミネソタ州から入手)溶液中に浸した。次にTeflon AFコーティング缶を純粋なFluorinert FC−70で洗い流し、最後に160℃で2時間乾燥させた。
制御可能な滴固化のための栓流反応器の使用。
本実施例では、同一の条件下で同一の膜を用いて生産した2バッチの滴が異なる冷却温度プロファイルで栓流反応器の中を流れた。第1の例では15〜20分間にわたって80℃から20℃への冷却が起こった。しかし、第2の例では、滴は200〜250分間にわたって20℃に冷却された。得られた多孔性アガロースビーズをサイズ排除クロマトグラフィーにより多孔性について試験した。表4に挙げたタンパク質について分配係数を測定した。急速な冷却により低速な冷却よりも小さい分配係数が得られ、それゆえ高速で冷却したビーズの多孔性はより小さくなる。
Claims (30)
- 複数の貫通孔を含む金属膜を含む器具を用意するステップであって、前記金属膜がニッケルであり、超疎水性コーティングでコーティングされており、第1の量が前記膜の第1の側面と接触しており、第2の量が前記膜の第2の側面と接触しており、前記第1の量が重合性モノマー相を含み、前記第2の量が前記モノマー相と不混和性の液体を含む、ステップと、
前記重合性モノマーを含む複数のモノマー液滴を形成するのに十分な条件下で前記貫通孔を通じて前記第1の量を前記第2の量中に分散させるステップであって、剪断力が前記第1の量が前記第2の量中に出て行く地点で提供され、剪断の向きが前記第1の量が出て行く向きに対して実質的に垂直方向であり、前記剪断力が前記膜を前記第2の量に対して変位させることにより提供される、ステップと、
前記第2の量中に分散した前記液滴を重合させるステップと
を含む、約10から約180μmの体積平均粒径を有する球状ポリマービーズを調製するための方法。 - 前記膜が前記膜の1cm2当たり約200から約2,000個の貫通孔を含む、請求項1に記載の方法。
- 前記貫通孔が約1μmから約100μmの範囲の直径を有する、請求項1に記載の方法。
- 前記貫通孔が約20μmから約60μmの範囲の直径を有する、請求項3に記載の方法。
- 距離を各貫通孔の中心部から測定する場合、前記複数の貫通孔が互いから各貫通孔の直径の少なくとも約20倍の距離で配置されている、請求項1に記載の方法。
- 前記モノマー相が前記貫通孔を通じて前記第2の量中に約1から約50cm/sの速度で分散する、請求項1に記載の方法。
- 前記ビーズが1.2未満の均一性係数を有する粒径分布を有する、請求項1に記載の方法。
- 前記変位させることが回転する、脈動する、または揺動する動きである、請求項1に記載の方法。
- 前記第1の量に圧力をかけることにより、前記第1の量が前記第2の量中に分散する、請求項1に記載の方法。
- 前記膜がニッケルめっきを施されている、請求項1に記載の方法。
- 前記複数の貫通孔が円錐形である、請求項1に記載の方法。
- 前記貫通孔がスロット形であり、スロット幅対スロット長の縦横比が少なくとも1:2である、請求項1に記載の方法。
- 分散相がアガロースまたは他のゲル形成化合物を含む、請求項1に記載の方法。
- 前記重合性モノマー相がポロゲンを含む、請求項1に記載の方法。
- 前記超疎水性コーティングがポリテトラフルオロエチレンである、請求項1に記載の方法。
- 前記ポリテトラフルオロエチレンコーティングがポリテトラフルオロエチレンの粒子を含む、請求項15に記載の方法。
- 前記ポリテトラフルオロエチレンコーティングが元素状ニッケルのナノ粒子をさらに含む、請求項15に記載の方法。
- 前記超疎水性コーティングが無電解析出により前記膜に塗布される、請求項15に記載の方法。
- 前記ポリテトラフルオロエチレンコーティングの上面に塗布されているアモルファスなポリテトラフルオロエチレンのコーティングをさらに含む、請求項15に記載の方法。
- 複数の貫通孔を含む金属膜を含む器具を用意するステップであって、前記金属膜がニッケルであり、超疎水性コーティングでコーティングされており、第1の量が前記膜の第1の側面と接触しており、第2の量が前記膜の第2の側面と接触しており、前記第1の量がアガロース溶液を含み、前記第2の量が前記アガロース溶液と不混和性の液体を含む、ステップと、複数のアガロース液滴を形成するのに十分な条件下で、前記貫通孔を通じて前記アガロース溶液と不混和性の前記液体中に前記アガロース溶液を分散させるステップであって、前記第1の量が前記第2の量中に出て行く地点で剪断力が提供され、剪断の向きが前記第1の量が出て行く向きに対して実質的に垂直方向であり、前記膜を前記第2の量に対して変位させることにより前記剪断力が提供される、ステップと、前記第2の量中に分散している前記アガロース液滴を硬化させてアガロースビーズを形成するステップとを含む、約10から約180μmの体積平均粒径を有する球状アガロースビーズを調製するための方法。
- 前記超疎水性コーティングがポリテトラフルオロエチレンである、請求項20に記載の方法。
- 前記ポリテトラフルオロエチレンコーティングがポリテトラフルオロエチレンのナノ粒子を含む、請求項21に記載の方法。
- 前記超疎水性コーティングが元素状ニッケルのナノ粒子をさらに含む、請求項21に記載の方法。
- 前記超疎水性コーティングが無電解析出により前記膜に塗布される、請求項21に記載の方法。
- 複数の貫通孔を含む金属膜を含む器具を用意するステップであって、前記金属膜がニッケルであり、超疎水性コーティングでコーティングされており、水性アガロース溶液が前記膜の第1の側面と接触しており、鉱物油が前記膜の第2の側面と接触している、ステップと、複数のアガロース液滴を形成するのに十分な条件下で、前記貫通孔を通じて前記鉱物油中に前記アガロース溶液を分散させるステップであって、前記アガロース溶液が前記鉱物油中に出て行く地点で剪断力が提供され、剪断の向きが前記アガロース溶液が出て行く向きに対して実質的に垂直方向であり、前記膜を前記鉱物油に対して変位させることにより前記剪断力が提供される、ステップと、前記鉱物油中に分散している前記アガロース液滴を硬化させてアガロースビーズを形成するステップとを含む、約10から約180μmの体積平均粒径を有する球状アガロースビーズを調製するための方法。
- 前記超疎水性コーティングがポリテトラフルオロエチレンである、請求項25に記載の方法。
- 前記ポリテトラフルオロエチレンコーティングがポリテトラフルオロエチレンのナノ粒子を含む、請求項26に記載の方法。
- 前記超疎水性コーティングが元素状ニッケルのナノ粒子をさらに含む、請求項26に記載の方法。
- 前記超疎水性コーティングが無電解析出により前記膜に塗布される、請求項26に記載の方法。
- 前記アガロース溶液が前記貫通孔を通じて分散する前に加熱される、請求項25に記載の方法。
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WO2022202466A1 (ja) * | 2021-03-25 | 2022-09-29 | Jsr株式会社 | クロマトグラフィー用担体の製造方法、クロマトグラフィーカラムの製造方法、及びクロマトグラフィー用担体 |
WO2022202467A1 (ja) * | 2021-03-25 | 2022-09-29 | Jsr株式会社 | クロマトグラフィー用担体の製造方法、クロマトグラフィーカラムの製造方法、及びクロマトグラフィー用担体 |
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MX2019007087A (es) | 2019-10-15 |
AU2017378089A1 (en) | 2019-06-06 |
MX2024004069A (es) | 2024-04-29 |
CN108203514B (zh) | 2022-11-22 |
EP4378963A3 (en) | 2024-08-21 |
RU2736821C1 (ru) | 2020-11-20 |
AU2017378089B2 (en) | 2022-05-12 |
UA124813C2 (uk) | 2021-11-24 |
CA3044128A1 (en) | 2018-06-21 |
KR102446737B1 (ko) | 2022-09-22 |
JP7106570B2 (ja) | 2022-07-26 |
EP4378963A2 (en) | 2024-06-05 |
KR20190097073A (ko) | 2019-08-20 |
EP3555146A1 (en) | 2019-10-23 |
CN108203514A (zh) | 2018-06-26 |
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