JP4312605B2 - 表面グラフト変性クロマトグラフィ用ポリマー支持体およびその作製方法 - Google Patents
表面グラフト変性クロマトグラフィ用ポリマー支持体およびその作製方法 Download PDFInfo
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- JP4312605B2 JP4312605B2 JP2003564098A JP2003564098A JP4312605B2 JP 4312605 B2 JP4312605 B2 JP 4312605B2 JP 2003564098 A JP2003564098 A JP 2003564098A JP 2003564098 A JP2003564098 A JP 2003564098A JP 4312605 B2 JP4312605 B2 JP 4312605B2
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Description
本願は、2002年1月25日に出願された米国仮出願第60/351,695号の利益を主張するものであり、その内容全体を参照により本願明細書中に援用する。
500m2/gの多孔質(ポリ)スチレン−ジビニルベンゼン(50%ジビニルベンゼン)ポリマー粒子1.3gを、メタノール10ml中に入れ、2−メルカプトエタノール1.5mlを添加した。この溶液を24時間室温に保ち、次いでメタノールで十分に洗浄して、未反応の2−メルカプトエタノールを全て除去した。元素分析によって、2.3%のイオウが得られたが、これは、約1.5umol/m2という利用可能なアルケン基の表面濃度と相関関係があるものである。これは、有効な被覆を表面にグラフトすることが可能であることを示している。
80%のジビニルベンゼンおよび20%のエチルスチレンで作製された、30ミクロンの、表面積800m2/gおよび細孔容積1ml/gのPSDVBポリマー収着剤50gを、1,4−ジオキサン300mlに添加した。この溶液に、変性アルケン試薬N−ビニルピロリドン25mlと遊離基開始剤2,2’−アゾビスイソブチロニトリル(AIBN)0.5gを添加した。この溶液を沸騰状態(約100C)まで3時間加熱し、1,4−ジオキサンで洗浄して、溶液中に形成された未反応のモノマーまたはポリマーを全て除去した。この変性した樹脂14の表面には窒素が含まれているが、この窒素は、表面グラフト変性ポリマー粒子の1.3重量%と測定された。これは、ポリマー粒子14の表面でグラフト化したモノマーが、表面1平方メートル当たり、1.2マイクロモル(umol/m2)であるというグラフト化レベルに相当する。
80%のジビニルベンゼンおよび20%のエチルスチレンで作製された、30ミクロンの、表面積800m2/gおよび細孔容積1ml/gのPSDVBポリマー収着剤50gを、1,4−ジオキサン300mlに添加した。この溶液に、変性アルケン試薬N−ビニルピロリドン8.4mlと遊離基開始剤2,2’−アゾビスイソブチロニトリル0.5gを添加した。これを沸騰状態(約100C)にまで3時間加熱し、1,4−ジオキサンで洗浄して、溶液中に形成された未反応のモノマーまたはポリマーを全て除去した。この変性した樹脂14の表面には窒素が含まれているが、この窒素は、表面グラフト変性ポリマー粒子の1.1重量%と測定された。これは、ポリマー粒子の表面1平方メートル当たり、表面でグラフト化したモノマーが1.0マイクロモル(umol/m2)であるというグラフト化レベルに相当する。
50%のジビニルベンゼンおよび50%のスチレンで作製された、70ミクロンの、表面積500m2/gおよび細孔容積1.1ml/gのPSDVBポリマー収着剤50gを、テトラヒドロフラン300mlに添加した。この溶液に、変性アルケン試薬であるアクリロニトリル25mlと遊離基開始剤2,2’−アゾビスイソブチロニトリル0.5gを添加した。これを沸騰状態(約66C)まで18時間加熱し、テトラヒドロフランで洗浄して、溶液中に形成された未反応のモノマーまたはポリマーを全て除去した。この変性した樹脂14の表面には窒素が含まれているが、この窒素は、表面グラフト変性ポリマー粒子または樹脂14の2.8重量%と測定された。これは、ポリマー粒子の表面1平方メートル当たり、表面でグラフト化したモノマーが4.1マイクロモル(umol/m2)であるというグラフト化レベルに相当し、その濃度はシリカベースの変性樹脂とほぼ同様である。
80%のジビニルベンゼンおよび20%のエチルスチレンで作製された、30ミクロンの、表面積800m2/gおよび細孔容積1ml/gのポリマー粒子50gを、1,4−ジオキサン300mlに添加した。この溶液に、変性アルケン試薬である無水マレイン酸25gと遊離基開始剤2,2’−アゾビスイソブチロニトリル0.5gを添加した。これを沸騰状態(約100C)まで3時間加熱し、1,4−ジオキサンで洗浄して、溶液中に形成された未反応のモノマーまたはポリマーを全て除去した。この変性した表面には、変性試薬中に見られる反応性無水カルボン酸化学基が含まれている。これらの反応性無水カルボン酸基を使用して、表面をさらに変性させた。
Claims (24)
- ポリマー粒子の表面に0.01μmol/m2 〜8μmol/m 2 の未反応アルケン基を有し、かつ、10%〜100%の架橋を有し、ポリマー粒子1グラムあたり1〜1200平方メートルの範囲に表面積を有する複数のポリマー粒子を選択する工程と、
クロマトグラフィ性能をもたらす遊離アルケン基を有するモノマーからなる化学変性剤としてN−ビニルピロリドンを選択する工程と、
該化学変性剤が可溶でありかつ選択された該ポリマー粒子とは反応性でない溶媒を選択する工程と、
該ポリマー粒子および該化学変性剤を該溶媒中に入れる工程と、
該溶媒中に遊離基開始剤を添加し、必要に応じて温度を上昇させて、溶液ベースの表面グラフト変性反応を引き起こすことにより該化学変性剤を該ポリマー粒子に結合して、クロマトグラフィの用途で使用するのに適切なクロマトグラフィ機能が高められた樹脂を生成する工程と
からなる非逐次的な工程を有する、クロマトグラフィ用ポリマー支持体の作製方法。 - ポリアクリレート、ポリメタクリレート、およびポリスチレンからなる群から前記ポリマー粒子を選択する工程をさらに備える、請求項1に記載の方法。
- 前記遊離基開始剤がAIBNである、請求項1または2に記載の方法。
- 前記ポリマー粒子が、直径1〜500μmの複数の粒子からなる、請求項1〜3のいずれか1項に記載の方法。
- ポリマー膜の表面に0.01μmol/m 2 〜8μmol/m 2 の複数の未反応アルケン基を有し、かつ、10%〜100%の架橋を有し、ポリマー膜1グラムあたり1〜1200平方メートルの範囲に表面積を画定するポリマー膜を形成するためのポリマー粒子を選択する工程と、
クロマトグラフィ特性を有する遊離アルケン基を備えたモノマーからなる化学変性剤を選択する工程と、
該化学変性剤が可溶でありかつ選択された該ポリマー膜とは反応性でない溶媒を選択する工程と、
該ポリマー粒子および該化学変性剤を該溶媒中に入れる工程と、
該溶媒中に遊離基開始剤を添加し、必要に応じて温度を上昇させて、溶液ベースの表面グラフト変性反応を引き起こすことにより該化学変性剤を該ポリマー膜に結合して、クロマトグラフィの用途で使用するのに適切なクロマトグラフィ機能が高められた膜を生成する工程と
からなる非逐次的な工程を有する、クロマトグラフィ用ポリマー支持体の作製方法。 - 前記膜は、0.25mm〜2mmの厚さを有し、さらに前記ポリマー膜が、ポリアクリレート、ポリメタクリレート、およびポリスチレンからなる群から選択される請求項5に記載の方法。
- 前記遊離基開始剤がAIBNである、請求項5に記載の方法。
- 円筒ポリマーモノリスの表面に0.01μmol/m 2 〜8μmol/m 2 の未反応アルケン基を有し、かつ、10%〜100%の架橋を有し、円筒ポリマーモノリス1グラムあたり1〜1200平方メートルの範囲に表面積を画定する円筒ポリマーモノリスを選択する工程と、
クロマトグラフィ性能をもたらす遊離アルケン基を有するモノマーからなる化学変性剤としてN−ビニルピロリドンを選択する工程と、
該化学変性剤が可溶でありかつ選択された該円筒ポリマーモノリスとは反応性でない溶媒を選択する工程と、
該ポリマー粒子および該化学変性剤を該溶媒中に投入する工程と、
該溶媒中に遊離基開始剤を添加し、必要に応じて温度を上昇させて、溶液ベースの表面グラフト変性反応を引き起こすことにより該化学変性剤を該円筒ポリマーモノリスに結合して、クロマトグラフィの用途で使用するのに適切なクロマトグラフィ機能が高められた円筒ポリマーモノリスを生成する工程と
からなる非逐次的な工程を有する、クロマトグラフィ用ポリマー支持体の作製方法。 - 前記ポリマーがポリアクリレート、ポリメタクリレート、およびポリスチレンからなる群から選択される請求項8に記載の方法。
- 前記遊離基開始剤がAIBNである、請求項8に記載の方法。
- 10%〜100%の架橋を有し、0.01μmol/m 2 〜8μmol/m 2 の未反応アルケン基を備えた表面を有するポリマー粒子と、
少なくとも1つの未反応アルケン基を表面に有するモノマーであって、クロマトグラフィ用ポリマー支持体を形成するために該モノマーを溶解するが該モノマーまたは該ポリマー粒子とは化学的に反応しない溶液中で行われる表面グラフト変性により、該ポリマー粒子の表面にある未反応アルケン基のそれぞれ一つに結合されている、少なくとも1つの未反応アルケン基を表面に有するモノマーと
からなり、該モノマーは、該ポリマー粒子に結合して該クロマトグラフィ用ポリマー支持体を形成する際に、該ポリマー粒子のクロマトグラフィ特性を高めるように選択されたN−ビニルピロリドンである
クロマトグラフィ特性が高められたクロマトグラフィ用ポリマー支持体。 - 前記ポリマー粒子が、ポリアクリレート、ポリメタクリレート、ポリエチルベンゼン、およびポリスチレンからなる群から選択される、請求項11に記載のクロマトグラフィ用ポリマー支持体。
- 前記ポリマー粒子が(ポリ)スチレン−ジビニルベンゼンである、請求項12に記載のクロマトグラフィ用ポリマー支持体。
- 前記ポリマーおよび前記クロマトグラフィ用ポリマー支持体は、直径1μm〜500μmの複数のビーズからなり、ビーズ1グラムあたり1〜1200平方メートルの範囲の表面積を有する請求項13に記載のクロマトグラフィ用ポリマー支持体。
- 前記ポリマーおよび前記クロマトグラフィ用ポリマー支持体が、厚さ0.1mm〜50mmの膜からなる、請求項13に記載のクロマトグラフィ用ポリマー支持体。
- 前記ポリマーおよび前記クロマトグラフィ用ポリマー支持体が円筒形のモノリスからなる、請求項13に記載のクロマトグラフィ用ポリマー支持体。
- 前記ポリマー粒子は、45〜100%の架橋を有している請求項1に記載の方法。
- 前記ポリマー粒子は、70〜100%の架橋を有している請求項17に記載の方法。
- 前記ポリマー粒子は、1〜300μmの直径を有している請求項1に記載の方法。
- 前記ポリマー粒子は、多孔質であり、10オングストローム(0.001μm)〜5000オングストローム(0.5μm)のメジアン孔径を有している請求項1に記載の方法。
- 前記ポリマー粒子は、50オングストローム(0.005μm)〜4000オングストローム(0.4μm)の範囲の孔径を有している請求項20に記載の方法。
- 前記溶媒は、メタノール、1,4−ジオキサン、テトラヒドロフランからなる群より選択される請求項1に記載の方法。
- 前記化学変性剤が、前記ポリマー粒子には見られない元素を有するモノマーを含み、
前記表面グラフト変性の前に、前記ポリマー粒子と前記化学変性剤とを反応させ、該ポリマー粒子中の該元素の含量に基づいて、未反応のアルケン基の濃度を決定する工程を更に含む請求項1、5、および8のいずれか1項に記載の方法。 - 前記化学変性剤が、前記ポリマー粒子には見られない元素を有するモノマーを含み、
前記表面グラフト変性の後に該元素の量を測定し、その元素の量を使用して、引き起こされた表面グラフト変性の程度を評価する工程を更に含む請求項1、5、および8のいずれか1項に記載の方法。
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-
2003
- 2003-01-24 AU AU2003216108A patent/AU2003216108A1/en not_active Abandoned
- 2003-01-24 US US10/351,119 patent/US7119145B2/en not_active Expired - Lifetime
- 2003-01-24 DE DE60304184T patent/DE60304184T2/de not_active Expired - Lifetime
- 2003-01-24 AT AT03735012T patent/ATE321078T1/de not_active IP Right Cessation
- 2003-01-24 JP JP2003564098A patent/JP4312605B2/ja not_active Expired - Fee Related
- 2003-01-24 WO PCT/US2003/002338 patent/WO2003064478A2/en active IP Right Grant
- 2003-01-24 EP EP03735012A patent/EP1506239B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2005516088A (ja) | 2005-06-02 |
EP1506239B1 (en) | 2006-03-22 |
EP1506239A2 (en) | 2005-02-16 |
WO2003064478A3 (en) | 2004-12-09 |
DE60304184T2 (de) | 2006-12-28 |
WO2003064478A2 (en) | 2003-08-07 |
ATE321078T1 (de) | 2006-04-15 |
AU2003216108A1 (en) | 2003-09-02 |
DE60304184D1 (de) | 2006-05-11 |
US7119145B2 (en) | 2006-10-10 |
US20030144421A1 (en) | 2003-07-31 |
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