JP2021161208A - 親水性改質基材 - Google Patents
親水性改質基材 Download PDFInfo
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- JP2021161208A JP2021161208A JP2020063385A JP2020063385A JP2021161208A JP 2021161208 A JP2021161208 A JP 2021161208A JP 2020063385 A JP2020063385 A JP 2020063385A JP 2020063385 A JP2020063385 A JP 2020063385A JP 2021161208 A JP2021161208 A JP 2021161208A
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- DYHSDKLCOJIUFX-UHFFFAOYSA-N tert-butoxycarbonyl anhydride Chemical compound CC(C)(C)OC(=O)OC(=O)OC(C)(C)C DYHSDKLCOJIUFX-UHFFFAOYSA-N 0.000 description 1
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Landscapes
- Treatments Of Macromolecular Shaped Articles (AREA)
- Laminated Bodies (AREA)
- Surface Treatment Of Glass (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
Abstract
Description
(1-1) メタクリルアミドプロピルスルホベタインの合成
(1-2(i)) モノBocピペラジンの合成
合成例1で調製した共重合体[化学式(9)]を用いて、各種基材に親水性改質処理を行った。成形基材は架橋済みシリコーンゴムシートを用いた。共重合体[化学式(9)]を0.1wt%水溶液に調製して使用した。基材を所定条件でプラズマ処理又はエキシマ処理した後、0.1wt%共重合体水溶液に室温で10分間浸漬した。その後、基材を取り出した後に紫外線を照射して親水性改質基材を得た。
基材にポリカーボネート(三菱ガス化学社製:ユーピロン・フィルムFE−2000)を用いたこと以外は、実施例1と同様にして、親水性改質基材を得た。
基材にソーダ石灰ガラス(松波硝子工業社製:S9213)を用いたこと以外は、実施例1と同様にして、親水性改質基材を得た。
数平均分子量(i)95000又は(ii)253000のホスホリルコリン高分子を用いたこと以外は、実施例1と同様にして、親水性改質基材を作製した。
得られた親水性処理改質基板の水の接触角にて親水性の評価を行った。得られた親水性改質基板に水1滴を滴下して10秒後に、接触角測定器自動接触角計(協和界面科学社製;DM−501)で水との接触角を、一試験片につき5〜7点測定し、その平均値を求めた。結果を表1に示した。
得られた親水性改質基材にオートクレーブ処理を行い、その前後により接触角の変化を確認した。試験は実施例1と比較例2にて実施した。オートクレーブ処理は、高圧蒸気滅菌器(サクラ精機社製:ASV−2402)にて121℃、2気圧で20分間行い、その後、水の接触角を測定した。結果を表2に示した。
親水性改質基材にγ線及び電子線照射を行い、放射線耐性を確認した。親水性改質基材を放射線発生装置にて20〜50kGyで放射線照射を行った。その後、水との接触角を測定した。
親水性改質基材を長期保管し、長期保存性を確認した。親水性改質基材をシャーレに入れて、室温、湿度60%環境下にて6箇月間保管し、日数経過後に水との接触角を測定した。
Claims (15)
- ゴム、樹脂、及びガラスから選ばれる何れかの材質製の成形基材を親水化した親水性改質基材であって、側鎖にベタイン構造を有する繰返単位と側鎖に活性官能基を有する繰返単位とを有する共重合体で、前記成形基材が被覆されており、前記ベタイン構造と前記活性官能基とが、前記成形基材上の表面官能基に反応、結合、又は吸着していることを特徴とする親水性改質基材。
- 前記共重合体中、前記繰返単位を繰り返している主鎖が、ポリ(メタ)アクリル骨格であることを特徴とする請求項1に記載の親水性改質基材。
- 前記共重合体中、前記ポリ(メタ)アクリル骨格が、ポリ(メタ)アクリルアミド共重合骨格、ポリ(メタ)アクリレート共重合骨格、又はポリ(メタ)アクリルアミド及びポリ(メタ)アクリレート共重合骨格であることを特徴とする請求項2に記載の親水性改質基材。
- 前記ベタイン構造が、カルボン酸基、スルホン酸基、及びリン酸基から選ばれるアニオン基と、アンモニウム基、スルホニウム基、及びホスホニウム基から選ばれるカチオン基とを有することを特徴とする請求項1〜3の何れかに記載の親水性改質基材。
- 前記ベタイン構造が、側鎖末端に前記アニオン基又は前記カチオン基を有することを特徴とする請求項5に記載の親水性改質基材。
- 前記活性官能基が、アジド基、スルホ基、トリアルコキシシリル基、及び水酸基から選ばれる少なくとも何れかの官能基であることを特徴とする請求項1〜5の何れかに記載の親水性改質基材。
- 炭化水素芳香環基、非芳香族複素環基、芳香族複素環基、直鎖状、分岐鎖状及び/又は環状で飽和又は不飽和の炭化水素基、アミド基、及びエステル基から選ばれる少なくとも何れかのスペーサ基が、前記活性官能基を有しつつ、前記繰返単位に、結合していることを特徴とする請求項1〜6の何れかに記載の親水性改質基材。
- 前記成形基材が、シリコーンゴム、フッ素ゴム、エチレン−プロピレン−ジエン三元共重合体ゴム、及びウレタンゴムから選ばれる前記ゴム製であることを特徴とする請求項1〜8の何れかに記載の親水性改質基材。
- 前記成形基材が、シリコーン樹脂、シクロオレフィン樹脂、ポリカーボネート樹脂、ポリエチレンテレフタレート樹脂、及びアクリル樹脂から選ばれる前記樹脂製であることを特徴とする請求項1〜8の何れかに記載の親水性改質基材。
- 前記成形基材が、石英ガラス、ホウケイ酸ガラス、及びソーダ石灰ガラスから選ばれる前記ガラス製であることを特徴とする請求項1〜8の何れかに記載の親水性改質基材。
- 前記成形基材の表面が、コロナ放電処理表面、プラズマ処理表面、紫外線処理表面、エキシマ処理表面、及び/又はシランカップリング剤処理表面であることを特徴とする請求項1〜11の何れかに記載の親水性改質基材。
- 前記表面官能基が、水酸基、カルボキシル基、カルボニル基、アミノ基、アルコキシ基、及びアルコキシシリル基から選ばれる少なくとも何れかであることを特徴とする請求項1〜12の何れかに記載の親水性改質基材。
- 前記ベタイン構造が前記表面官能基にイオン結合で結合し又は吸着しており、前記活性官能基がイオン結合又は共有結合で結合していることを特徴とする請求項1〜13の何れかに記載の親水性改質基材。
- 前記成形基材が、ポリジメチルシロキサン骨格、ポリメチルフェニルシロキサン骨格、及びポリメチルハイドロジェンシロキサン骨格から選ばれる何れかを有するシリコーンゴム製又はシリコーン樹脂製であることを特徴とする請求項1〜14の何れかに記載の親水性改質基材。
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