TW201904662A - 抗蛋白質吸附劑、抗蛋白質吸附膜及利用其之醫療用具 - Google Patents
抗蛋白質吸附劑、抗蛋白質吸附膜及利用其之醫療用具Info
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- TW201904662A TW201904662A TW107113953A TW107113953A TW201904662A TW 201904662 A TW201904662 A TW 201904662A TW 107113953 A TW107113953 A TW 107113953A TW 107113953 A TW107113953 A TW 107113953A TW 201904662 A TW201904662 A TW 201904662A
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Classifications
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Abstract
Description
本發明係關於抗蛋白質吸附劑、抗蛋白質吸附膜及利用其之醫療用具。
不對活體帶來損害,可抑制異物反應之活體適合性材料近年來引起注目。活體適合性材料為非常廣泛的概念,依目的大致上分成二種。一種為以防止血液之凝固作為目的之抗血栓性材料,另一種為防止蛋白質之附著作為目的之抗蛋白質吸附材料。其中,抗蛋白質吸附材料被使用在醫療機器、隱形眼鏡所謂衛生用品、診斷藥或細胞培養器等範圍廣泛之領域。
作為既知之抗蛋白質吸附材料,例如可列舉由(甲基)丙烯酸酯系單體之聚合物與(甲基)丙烯醯胺系單體之聚合物所構成之嵌段共聚物(專利文獻1)。此嵌段共聚物已知被膜形成能優異,與基材的接著性亦優異,且具有不吸附蛋白質的性質。惟,已知(甲基)丙烯醯胺系單體具有毒性,由於共聚物中之殘存單體有於使用中溶出的可能性,故被限定使用用途。
因此,作為具有使用安全性高之原料的被膜形成能之材料,正開發有乙烯基醚系共聚物(專利文獻2)。在同文獻,提案有使2-甲氧基乙基乙烯基醚(MOVE)、與三環癸烷乙烯基醚(TCDVE)等之具有脂環骨架之乙烯基醚進行共聚合之方法。然而,此共聚物係顯示感熱響應性,雖可利用在顯示器或遮光體等之電氣、電子、光學等之材料,但針對如防止蛋白質的附著之活體適合性並未有任何評價。
又,專利文獻3中揭示具有氧乙烯鏈之乙烯基醚與疏水性乙烯基醚的共聚物,係具有優異之製膜性或耐水性,且抗血栓性優異。然而,由於所得之共聚物為非水溶性,有限制使用用途的情況。進而,針對抗血栓性雖有評價,但針對蛋白質之非吸附性,該專利文獻中並未有任何評價。 [先前技術文獻] [專利文獻]
[專利文獻1] 日本特開2013-57058號公報 [專利文獻2] 日本專利第4528601號公報 [專利文獻3] 日本特開2016-50266號公報
[發明欲解決之課題]
本發明係鑑於上述實情而完成者,以提供一種具有優異之製膜性及水溶性,可輕易塗佈在各種基材,並且具有優異之抗蛋白質吸附性的抗蛋白質吸附劑,又,提供一種由此抗蛋白質吸附劑所形成之抗蛋白質吸附膜及利用其之醫療用具作為其課題。 [用以解決課題之手段]
本發明者等,專注在含有源自乙烯基醚之構造單位的聚合物,進行各種研究時,發現藉由於源自特定乙烯基醚之聚合物中導入疏水性基,具有優異之製膜性或水溶性,且顯示優異之抗蛋白質吸附性,而完成本發明。
即,本發明係一種抗蛋白質吸附劑,其係至少具有下述式(1)表示之構造單位(A),[式中,R1
表示甲基或乙基,n表示1~10之整數] 進而含有包含疏水性基之聚合物及水系溶劑。
又,本發明為一種抗蛋白質吸附膜,其係由前述抗蛋白質吸附劑所形成。
進而,本發明為一種醫療用具,其係具備前述抗蛋白質吸附膜。 [發明的效果]
本發明之抗蛋白質吸附劑可輕易塗佈在各種基材,並且具有優異之製膜性及水溶性,並且為可形成抗蛋白質吸附性之被膜者。
又,本發明之抗蛋白質吸附膜由於可防止蛋白質之吸附,對於各種醫療用具而言可適合使用。進而,具備本發明之蛋白質非吸附膜的醫療用具可防止污垢(Fouling)。
本發明之抗蛋白質吸附劑為含有特定之聚合物與水系溶劑者,此特定之聚合物係至少包含下述式(1)表示之構造單位(A)(以下,將此單稱為「構造單位(A)」)之聚合物,該聚合物為經導入疏水性基者(以下,將此稱為「含有疏水性基之聚合物」)。
在前述式(1),R1
為甲基或乙基,氧乙烯鏈之重複數n為1~10之整數,較佳為1~6之整數,更佳為1~4之整數,特佳為1~3之整數。
作為使用在本發明之抗蛋白質吸附劑之含有疏水性基之聚合物中所包含之疏水性基,若為藉由導入在聚合物,使對於水之親和性降低,亦即可賦予難以溶解於水,或難以與水混合之性質者,雖並未特別限定,但例如可列舉下述式(2)~(4)表示之疏水性基等。此等可含有1種或2種以上。
疏水性基(2):
在前述式(2),R2
為脂肪族烴基,具體而言,為直鏈狀或分支鏈狀之烷基或烯基,或單環狀或多環狀之烷基或烯基。
上述之直鏈狀或分支鏈狀之烷基或烯基,較佳為碳數2~10,更佳為碳數2~8,再更佳為碳數2~6。
作為直鏈狀或分支鏈狀之烷基或烯基的具體例,例如可列舉乙基、n-丙基、異丙基、n-丁基、異丁基、tert-丁基、1-戊基、2-戊基、3-戊基、1-(2-甲基)-丁基、2-(2-甲基)-丁基、1-(3-甲基)-丁基、2-(3-甲基)-丁基、(2、2-二甲基)-丙基、1-己基、2-己基、3-己基、1-庚基、2-庚基、3-庚基、4-庚基、1-辛基、1-(2-乙基)-己基等之直鏈狀或分支鏈狀之烷基;乙烯基、1-丙烯基、烯丙基、2-丁烯基、3-丁烯基、異丙烯基、異丁烯基、1-戊烯基、2-戊烯基、3-戊烯基、4-戊烯基、1-己烯基、2-己烯基、3-己烯基、4-己烯基、5-己烯基等之直鏈狀或分支鏈狀之烯基。
又,單環狀或多環狀之烷基或烯基較佳為碳數3~25,更佳為碳數4~20,再更佳為碳數5~15。
作為單環狀或多環狀之烷基或烯基的具體例,例如可列舉環戊基、環戊基甲基、甲基環戊基、二甲基環戊基、環己基、環己基甲基、甲基環己基、二甲基環己基、環己烯基、環庚基、環辛基、環壬基、環癸基、環十一烷基、環十二烷基、環十三烷基、環十四烷基、環十五烷基、環十八烷基、環二十烷基等之單環狀之烷基或烯基;聯環己基、十氫化萘基、降冰片基、甲基降冰片基、異冰片基、金剛烷基、三環癸烷基、三環癸烯基、四環十二烷基等之多環狀之烷基或烯基等。
此等之脂肪族烴基當中,從製膜性、水溶性、抗蛋白質吸附性的點來看,較佳為n-丁基、環己基。
疏水性基(3):
在前述式(3),R3
表示氫原子、碳數1~4之烷基、碳數2~6之烷氧基烷基、烷醯基、烷氧基羰基、烷氧基羰基烷基或烷基矽烷基,m為0~3之整數。
又,R3
所示之烷基可為直鏈狀亦可為分支鏈狀,例如可列舉甲基、乙基、丙基、異丙基、n-丁基、sec-丁基、tert-丁基、異丁基等。
R3
所示之碳數2~6之烷氧基烷基可為直鏈狀、分支鏈狀及環狀(係意指2個烷基鏈與氧原子一同形成含氧雜環)之任一種,具體而言,可列舉甲氧基甲基、乙氧基甲基、2-甲氧基乙基、2-乙氧基乙基等。
作為R3
所示之烷醯基之碳數,較佳為2~6。該烷醯基可為直鏈狀亦可為分支鏈狀,例如可列舉乙醯基、丙醯基、tert-丁基羰基等。
作為R3
所示之烷氧基羰基之碳數,較佳為2~6。該烷氧基羰基可為直鏈狀亦可為分支鏈狀,例如可列舉甲氧基羰基、乙氧基羰基、丙氧基羰基、tert-丁氧基羰基等。
作為R3
所示之烷氧基羰基烷基之碳數,較佳為2~6。該烷氧基羰基烷基可為直鏈狀亦可為分支鏈狀,例如可列舉tert-丁氧基羰基甲基等。
作為R3
所示之烷基矽烷基之碳數,較佳為2~6。作為該烷基矽烷基,例如可列舉三甲基矽烷基、tert-丁基二甲基矽烷基等。
又,式(3)中,作為m,較佳為1或2,更佳為1。尚,m為2或3時,m個-OR3
可為相同亦可為相異。
疏水性基(4):
式(4)中,X表示醚鍵、硫醚鍵、基-NH-或基-OY-(Y係意指伸烷基,以其一端與Ar1
鍵結),Ar1
表示取代或非取代之2價芳香族烴基,Ar2
表示取代或非取代之1價芳香族烴基。
作為Y所示之伸烷基,例如可列舉亞甲基、伸乙基、伸丙基、伸丁基、五亞甲基、六亞甲基等。
作為Ar1
所示之取代或非取代之2價芳香族烴基,例如可列舉伸苯基、伸萘基、伸蒽基,作為Ar2
所示之取代或非取代之1價芳香族烴基,例如可列舉苯基、萘基、蒽基。
又,作為前述式(4)表示之疏水性基,具體而言,可列舉下述式(7)表示之4-苯基二氮雜苯氧基。
前述疏水性基(4)係於含有疏水性基之聚合物的末端具有一個以上者。作為末端,可為主鏈、側鏈之任一個末端,亦可為兩末端、單末端之任一個。
又,於本發明使用之含有疏水性基之聚合物,可含有具有前述疏水性基(2)之下述式(5)之構造單位(B)(以下,單稱為「構造單位(B)」)。
式(5)中,R2
係與前述式(2)同義。
進而,於本發明使用之含有疏水性基之聚合物,可含有具有前述疏水性基(3)之下述式(6)之構造單位(C)(以下,單稱為「構造單位(C)」)。
式(6)中,R3
及m係與前述式(3)同義,R4
表示氫原子或碳數1~4之烷基,作為烷基之碳數,較佳為1或2。
又,R4
所示之烷基可為直鏈狀亦可為分支鏈狀,例如可列舉甲基、乙基、丙基、異丙基、n-丁基、sec-丁基、tert-丁基、異丁基等。
本發明之含有疏水性基之聚合物包含前述構造單位(B)或前述構造單位(C)時,此等可單獨或組合。進而,前述構造單位(A)、與前述構造單位(B)及/或前述構造單位(C)的組成比(莫耳比),於不損害製膜性、水溶性及抗蛋白質吸附性的範圍,可任意選定,雖並未特別限定,但較佳為99/1~10/90的範圍,更佳為95/5~20/80的範圍,再更佳為95/5~30/70,特佳為95/5~40/60的範圍。
又,進而,本發明之含有疏水性基之聚合物包含前述構造單位(B)及/或前述構造單位(C)時,構造單位(A)與構造單位(B)及/或構造單位(C)的配列樣式並未特別限定,可為無規共聚合及嵌段共聚物之任一種。作為嵌段共聚物,例如可列舉二嵌段型(A-B、A-C等)、三嵌段型(A-B-A、B-A-B、A-B-C等)、多分支型星(Star)([B-A]n
、[A-B]n
、[A-C]n
、An
Bm
等;n、m為分支數)等之各嵌段聚合物。
又,作為本發明之含有疏水性基之聚合物的分子量,例如作為藉由凝膠滲透層析(GPC)法由標準聚苯乙烯檢量線所求出之重量平均分子量(Mw),大概為1,000~1,000,000,較佳為2,000~500,000,更佳為3,000~ 300,000。
進而,本發明之含有疏水性基之聚合物的重量平均分子量(Mw)與數平均分子量(Mn)的比(Mw/Mn),較佳為1.0~5.0,更佳為1.0~3.0,特佳為1.0~1.5。Mw及Mw/ Mn為此範圍時,所得之含有疏水性基之聚合物顯示優異之塗佈性能及優異之抗蛋白質吸附性。
又,作為本發明之含有疏水性基之聚合物,具體而言,例如可列舉包含前述構造單位(A)與前述構造單位(B)及/或前述構造單位(C)之共聚物(以下,單稱為「共聚物」)、於該共聚物之末端具有前述疏水性基(4)之末端修飾型共聚物(以下,單稱為「末端修飾型共聚物」)及於包含前述構造單位(A)之均聚物的末端具有疏水性基(4)之末端修飾型均聚物(以下,單稱為「末端修飾型均聚物」)等。以下,針對此等之製造方法進行說明。
(共聚物) 共聚物可藉由將給予構造單位(A)之單體、與給予構造單位(B)之單體及/或給予構造單位(C)之單體依照常法進行聚合來調製。作為此時之聚合法,為了再現性良好地得到所期望之組成比及分子量的共聚物,尤其是以活陽離子聚合法較佳。在活陽離子聚合法,共聚物的分子量由於藉由單體與聚合起始劑的莫耳比幾乎無歧義地決定,故藉由變更單體與聚合起始劑的使用量,可將共聚物的分子量通過廣大範圍任意調控。
作為給予構造單位(A)之單體,可列舉下述式(8)表示之親水性乙烯基醚。R1
及n係與式(1)同義。
作為上述親水性乙烯基醚(8),具體而言,可列舉2-甲氧基乙基乙烯基醚(以下,記載為「MOVE」)、2-乙氧基乙基乙烯基醚(以下,記載為「EOVE」)、2-(2-甲氧基乙氧基)乙基乙烯基醚(別名:二乙二醇單甲基單乙烯基醚)、2-(2-乙氧基乙氧基)乙基乙烯基醚(別名:二乙二醇單乙基單乙烯基醚;以下,記載為「EOEOVE」)、2-[2-(2-甲氧基乙氧基)乙氧基]乙基乙烯基醚(別名:三乙二醇單甲基單乙烯基醚;以下,記載為「TEGVE」)、2-[2-(2-乙氧基乙氧基)乙氧基]乙基乙烯基醚(別名:三乙二醇單乙基單乙烯基醚)等。此等當中,從製膜性及抗蛋白質吸附性優異來看,較佳為MOVE、EOVE、EOEOVE、TEGVE。
又,作為給予構造單位(B)之單體,可列舉下述式(9)表示之疏水性乙烯基醚。R2
係與式(5)同義。
作為上述疏水性乙烯基醚(9),具體而言,可列舉正丁基乙烯基醚、異丁基乙烯基醚、環己基乙烯基醚、三環癸烷基乙烯基醚等。此等當中,較佳為正丁基乙烯基醚及環己基乙烯基醚。
又,作為給予構造單位(C)之單體,可列舉下述式(10)表示之疏水性苯乙烯系單體。R3
、R4
及m係與式(6)同義。
作為上述疏水性苯乙烯系單體(10),具體而言,例如可列舉苯乙烯;甲基苯乙烯、乙基苯乙烯等之烷基苯乙烯類;p-羥基苯乙烯、m-羥基苯乙烯、o-羥基苯乙烯、p-異丙烯基苯酚、m-異丙烯基苯酚、o-異丙烯基苯酚等之羥基苯乙烯類;p-甲氧基苯乙烯、m-甲氧基苯乙烯、p-乙氧基苯乙烯、m-乙氧基苯乙烯、p-丙氧基苯乙烯、m-丙氧基苯乙烯、p-異丙氧基苯乙烯、m-異丙氧基苯乙烯、p-n-丁氧基苯乙烯、m-n-丁氧基苯乙烯、p-異丁氧基苯乙烯、m-異丁氧基苯乙烯、p-tert-丁氧基苯乙烯、m-tert-丁氧基苯乙烯等之烷氧基苯乙烯類;p-甲氧基甲氧基苯乙烯、m-甲氧基甲氧基苯乙烯、p-(1-乙氧基乙氧基)苯乙烯、m-(1-乙氧基乙氧基)苯乙烯、p-(2-四氫吡喃基)氧基苯乙烯、m-(2-四氫吡喃基)氧基苯乙烯等之烷氧基烷基氧基苯乙烯類;p-乙醯氧基苯乙烯、m-乙醯氧基苯乙烯、p-tert-丁基羰基氧基苯乙烯、m-tert-丁基羰基氧基苯乙烯等之烷醯基氧基苯乙烯類;p-tert-丁氧基羰基甲基氧基苯乙烯、m-tert-丁氧基羰基氧基甲基苯乙烯等之烷氧基羰基烷基氧基苯乙烯類;p-三甲基矽烷基氧基苯乙烯、m-三甲基矽烷基氧基苯乙烯、p-tert-丁基二甲基矽烷基氧基苯乙烯、m-tert-丁基二甲基矽烷基氧基苯乙烯等之烷基矽烷基氧基苯乙烯類等,如此之氧基苯乙烯系單體當中,可使用1種,亦可使用2種以上。此等當中,較佳為羥基苯乙烯類、烷氧基苯乙烯類,特佳為p-羥基苯乙烯、p-異丙烯基苯酚、p-tert-丁氧基苯乙烯。
又,在前述活陽離子聚合所使用之聚合起始劑,若為活性進行陽離子聚合者,雖並未特別限制,但例如作為乙烯基醚類之活陽離子聚合起始劑,適合使用組合HI/I2
系起始劑(例如日本特開昭60-228509號公報)、路易斯酸觸媒(有機鋁化合物等)與鹼等之添加劑(醚、酯等)之聚合起始劑(例如日本專利第3096494號公報、日本特公平7-2805號公報、日本特開昭62-257910號公報、日本特開平1-108202號公報及日本特開平1-108203號公報)等。
聚合起始劑的使用量相對於原料單體的總量,較佳為0.001~20莫耳%,更佳為0.01~10莫耳%,特佳為1莫耳%以下。
又,活陽離子聚合反應於適當之有機溶劑的存在下進行雖較佳,但亦可於非存在下進行。作為可使用之有機溶劑,例如可列舉苯、甲苯、二甲苯等之芳香族烴系溶劑;丙烷、n-丁烷、異丁烷、n-戊烷、異戊烷、n-己烷、n-庚烷、n-辛烷、異辛烷、癸烷、十六烷、環己烷等之脂肪族烴系溶劑;二氯甲烷、氯化乙烯、四氯化碳等之鹵素化烴系溶劑;二乙基醚、二丁基醚、四氫呋喃(THF)、二噁烷、乙二醇二乙基醚等之醚系溶劑。此等之有機溶劑如有必要可單獨或組合2種以上使用。又,此等之有機溶劑當中,較佳為芳香族烴系溶劑及脂肪族烴系溶劑等之烴系溶劑,特佳為甲苯或環己烷。
在此聚合反應之聚合溫度,雖因使用之聚合起始劑、單體、溶劑的種類等而異,但通常為-80~150℃,較佳為-50~100℃,特佳為-20~80℃。又,聚合時間雖因使用之聚合起始劑、單體、溶劑、反應溫度等而異,但通常為10分鐘~100小時左右。聚合反應即使批量式、連續式之任一種方法亦可適合進行。聚合反應後視必要,為了去除未反應之單體,可藉由周知之方法進行純化處理。
(末端修飾型共聚物) 末端修飾型共聚物可藉由將前述共聚物之末端導入前述式(4)表示之疏水性基製造。作為疏水性基(4)之導入方法,雖並未特別限定,但例如可藉由於前述共聚物之製造中,添加可衍生4-苯基偶氮苯酚等之疏水性基(4)的化合物,於活聚合物末端導入末端構造來進行。
(末端修飾型均聚物) 末端修飾型均聚物可藉由依照常法使給予前述構造單位(A)之單體進行聚合,於所得之均聚物的末端導入前述疏水性基(4)來製造。尚,作為聚合方法,可與前述共聚物之製造方法同樣進行,作為進行末端修飾之方法,可與前述末端修飾型共聚物之製造方法同樣進行。
另一方面,在本發明之抗蛋白質吸附劑,與前述含有疏水性基之聚合物組合之水系溶劑,可因應含有疏水性基之聚合物的組成或分子量、成為塗佈對象之基材的種類或表面性狀等,適當選擇其種類或濃度。
作為在本發明之抗蛋白質吸附劑的水系溶劑,例如可列舉水、醇、酮等。作為醇,較佳為甲醇、乙醇、異丙醇等,作為酮,較佳為丙酮、甲基乙基酮等。此等當中,較佳為水、異丙醇、乙醇及此等之混合溶劑。此等之水系溶劑如有必要可單獨或組合2種以上使用。
又,在本發明之抗蛋白質吸附劑之含有疏水性基之聚合物與水系溶劑的摻混比,雖並未特別限制,但相對於含有疏水性基之聚合物0.05~99質量份,較佳為水系溶劑1~99.95質量份。
本發明之抗蛋白質吸附劑的調製雖可藉由周知之方法進行,但作為較佳之調製方法,可列舉於水系溶劑摻混含有疏水性基之聚合物,均一攪拌進行混合之方法。
如此進行所得之本發明之抗蛋白質吸附劑,係毒性低且具有優異之製膜性,並且可形成抗蛋白質吸附性之被膜者。據此,本發明之抗蛋白質吸附劑,於各種基材,尤其是於有與蛋白質成分接觸之可能性的基材上,為了形成抗蛋白質吸附膜而使用者。尚,所謂上述製膜性,係意指抗蛋白質吸附膜未從基材剝離,又,未分解抗蛋白質吸附膜。
使用本發明之抗蛋白質吸附劑的抗蛋白質吸附膜之形成方法,並未特別限定,因應形成抗蛋白質吸附膜之基材的材質、形狀及形態,例如從塗佈法、噴霧法、浸漬法、旋塗法等周知之方法適當選定。例如,可藉由浸漬基材於抗蛋白質吸附劑後,進行乾燥等之簡單操作,將蛋白質非吸附膜形成在基材。浸漬基材的時間雖並未特別限定,但較佳為0.5~24小時。又,作為乾燥方法,可列舉風乾或加熱乾燥等,乾燥的時間雖並未特別限定,但較佳為0.5~5小時。又,乾燥的溫度較佳為25~80℃,更佳為25~50℃。尚,所得之抗蛋白質吸附膜可直接與基材一同適用在後述之醫療用具,又,亦可剝離抗蛋白質吸附膜,附著在其他基材使用。
形成前述抗蛋白質吸附膜之基材的材質或形狀暨形態雖並未被特別制限,但例如可列舉薄膜、薄片、板、纖維、不織布、多孔質體、管、中空糸、粒子、粉末等之任意的形狀暨形態。
又,基材之材質,亦可列舉聚丙烯、聚乙烯等之聚烯烴、尼龍、聚酯、聚丙烯腈、鹵素化聚烯烴、聚苯乙烯、聚碳酸酯、聚氯化乙烯基、聚胺基甲酸酯、聚醯胺、聚碸、聚醚碸、聚(甲基)丙烯酸酯、乙烯-乙烯基醇共聚物、丁二烯-丙烯腈共聚物、環烯烴系聚合物等之合成樹脂及此等之混合聚合物;木綿、麻等之天然高分子;金屬、陶瓷、玻璃等之無機材料及該等之複合材料等,可使用此等。
藉由本發明之抗蛋白質吸附劑形成抗蛋白質吸附膜,作為較佳之例,可列舉醫療用具。於醫療用具,以與蛋白質成分接觸之部位的至少一部分,較佳為全部,以抗蛋白質吸附膜被覆較佳。
如此,以抗蛋白質吸附劑處理之本發明之醫療用具,由於具備前述抗蛋白質吸附膜,可特別適合使用在與蛋白質直接接觸來使用之用途。具體而言,可使用在所謂醫療機器或隱形眼鏡之衛生用品、診斷藥或細胞培養器等範圍廣泛的領域。 [實施例]
雖藉由以下之實施例、合成例,進一步具體說明本發明,但本發明並非因此等實施例等而有任何限定者。尚,在實施例,聚合物的組成比從1
H NMR之分析結果,重量平均分子量(Mw)及分子量分布(Mw/Mn)係從GPC之分子量分析結果(聚苯乙烯換算)分別求出。分析裝置及測定條件等係如以下。
(NMR) ‧裝置:Bruker製 AVANCE400 ‧溶劑:氘代丙酮 ‧測定溫度:30℃
(GPC) ‧裝置:東曹股份有限公司製、「HLC-8320GPC」 ‧檢出器:RI檢出器 ‧移動相:四氫呋喃 ‧流量:1mL/分鐘 ‧管柱:昭和電工股份有限公司製「Shodex LF-804」×3管 ‧管柱溫度:40℃
合成例1 2-(2-乙氧基乙氧基)乙基乙烯基醚/環己基乙烯基醚嵌段共聚物(EOEOVE-block-CHVE)之合成: 於乾燥氮環境下300℃以上加熱脫水10分鐘之附三通旋塞閥之300mL三口燒瓶,加入甲苯170mL作為溶劑,乙酸乙酯24.95mL作為添加鹼,二乙二醇單乙基單乙烯基醚(EOEOVE)23.40mL作為親水性、異丁基乙烯基醚之乙酸加成體0.25mL作為起始種,並充分攪拌。
其次,保持在-5℃,添加調整成0.91M之Et1.5
AlCl1.5
3.74mL作為路易斯酸觸媒,開始聚合。於EOEOVE之轉化率成為95%以上的階段,加入環己基乙烯基醚4.82mL作為疏水性乙烯基醚,進行聚合。
聚合以包含少量之甲醇鈉(1M)的甲醇停止。於經停止之溶液添加離子交換樹脂[商品名:Amber List MSPS-2・DRY、Organo(股)製],去除路易斯酸。接著,藉由將此溶液通過矽藻土,進而通液孔徑1μm之過濾器,以蒸發器進行減壓濃縮,而得到目的之嵌段共聚物。
合成例2~6 將合成例1為基準,藉由分別使用EOEOVE、TEGVE及MOVE作為親水性乙烯基醚,使用環己基乙烯基醚(以下,稱為「CHVE」)及正丁基乙烯基醚(以下,稱為「NBVE」)作為疏水性乙烯基醚,使用tert-丁氧基苯乙烯(以下,稱為「TBOS」)作為疏水性苯乙烯系單體,變更起始種量、路易斯酸種、投入順序、停止劑種,製作各種聚合物。
將於合成例1~6所得之各共聚物的疏水基量(mol%)、分子量(Mw)、分子量分布(Mw/Mn)及對水之溶解性示於表1。
合成例7 含有4-(苯基二氮雜)苯氧基之EOEOVE的合成: 於乾燥氮環境下300℃以上加熱脫水10分鐘之附三通旋塞閥之300mL三口燒瓶,加入甲苯170mL作為溶劑,乙酸乙酯24.95mL作為添加鹼,二乙二醇單乙基單乙烯基醚(EOEOVE)23.40mL作為親水性、異丁基乙烯基醚之乙酸加成體0.25mL作為起始種,並充分攪拌。其次,保持在-5℃,添加調整成0.91M之Et1.5
AlCl1.5
3.74mL作為路易斯酸觸媒,開始聚合。藉由於EOEOVE之轉化率成為95%以上的階段,以將4-苯基偶氮苯酚(Sigma Aldrich公司製)相對於起始種,成為3倍量加入1g,導入末端。於此溶液添加離子交換樹脂[商品名:Amber List MSPS-2・DRY、Organo(股)製],去除路易斯酸。接著,藉由將此溶液通過矽藻土,進而通液孔徑1μm之過濾器,以蒸發器進行減壓濃縮,而得到於EOEOVE之末端修飾4-(苯基二氮雜)苯氧基之末端修飾型均聚物。
合成例8 含有甲氧基之EOEOVE之合成: 於乾燥氮環境下300℃以上加熱脫水10分鐘之附三通旋塞閥之300mL三口燒瓶,加入甲苯170mL作為溶劑,乙酸乙酯24.95mL作為添加鹼,二乙二醇單乙基單乙烯基醚(EOEOVE)23.40mL作為親水性、異丁基乙烯基醚之乙酸加成體0.25mL作為起始種,並充分攪拌。其次,保持在-5℃,添加調整成0.91M之Et1.5
AlCl1.5
3.74mL作為路易斯酸觸媒,開始聚合。藉由於EOEOVE之轉化率成為95%以上的階段,將1M之甲醇鈉添加至系統內之pH成為中性附近為止,於末端導入甲醇(methoxide)。於此溶液添加離子交換樹脂[商品名:Amber List MSPS-2・DRY、Organo(股)製],去除路易斯酸。接著,藉由將此溶液通過矽藻土,進而通液孔徑1μm之過濾器,以蒸發器進行減壓濃縮,而得到於EOEOVE之末端修飾甲氧基之末端修飾型均聚物。
將於合成例7~8所得之各聚合物的分子量(Mw)、分子量分布(Mw/Mn)及對水之溶解性示於表2。
實施例1~7 抗蛋白質吸附劑: 調整於上述合成例1~7所得之各聚合物的5質量%水溶液,而得到抗蛋白質吸附劑(實施例1~7)。又,將上述合成例8之5質量%水溶液作為比較例1。尚,抗蛋白質吸附劑皆為無色透明。
試驗例1 抗蛋白質吸附性試驗: 針對於實施例1~7所得之抗蛋白質吸附劑及於比較例1所得之抗蛋白質吸附劑,藉由以下之方法進行抗蛋白質吸附性試驗。將此結果示於以下之表3。 (1)聚合物塗佈穴盤之製作 於聚苯乙烯製12穴盤分別加入4mL之實施例1~7及比較例1之抗蛋白質吸附劑,於室溫放置16小時。從前述穴盤去除抗蛋白質吸附劑,接著,以純水充分洗淨。洗淨後藉由以45℃之乾燥機乾燥6小時,分別得到塗佈合成例1~8之聚合物的穴盤。
(2)發色液及蛋白質溶液之準備 發色液係使用將二金雞鈉酸(以下BCA溶液)與硫酸銅(II)溶液以50:1混合者。 作為蛋白質溶液,係使用將蛋白質(Immuno Research LABORATORIES inc Bovine Serum Albumin (IgG-Free Protease-Free))以0.1M磷酸緩衝溶液(和光純藥工業製)成為30μg/mL的方式進行調整者。
(3)蛋白質吸附 在合成例1~8之聚合物,於形成被覆層之12穴盤分注上述蛋白質溶液(3mL/穴),於室溫放置3小時。
(4)穴洗淨 其次,將12穴盤以0.1M磷酸緩衝溶液3mL進行4次洗淨。
(5)發色液分注 其次,分注發色液2mL於結束洗淨之12穴盤,將2mL 0.1M磷酸緩衝溶液以65℃進行1小時發色反應。
(6)吸光度測定準備 其次,將結束發色反應之液於PMMA電池取出3mL,作為吸光度測定用樣品。
(7)吸光度測定 吸光度係將562nm之吸光度藉由日本分光股份有限公司製V-650分光光度計(spectrophotometer)測定。從於事前作成之檢量線數據,將吸光度換算成蛋白質附著量。
使用實施例1~7之抗蛋白質吸附劑進行表面被覆之穴盤,與比較例1及比較例2(對照)比較,確認蛋白質吸附量較少。 [產業上之可利用性]
如以上說明,以本發明之抗蛋白質吸附劑形成之被膜,係製膜性及水溶性優異,可防止蛋白質的附著。尤其是藉由於與蛋白質接觸之醫療用具形成此被膜,使得污垢的防止變可能。據此,本發明在醫療領域及醫療用具製造的領域極為有用。
Claims (11)
- 一種抗蛋白質吸附劑,其係至少具有下述式(1)表示之構造單位(A),[式中,R1 表示甲基或乙基,n表示1~10之整數] 進而含有包含疏水性基之聚合物及水系溶劑。
- 如請求項1之抗蛋白質吸附劑,其中前述疏水性基係選自由下述式(2)、下述式(3)及下述式(4)所成群組中之基的1種或2種以上,[式中,R2 表示脂肪族烴基,R3 表示氫原子、碳數1~4之烷基、碳數2~6之烷氧基烷基、烷醯基、烷氧基羰基、烷氧基羰基烷基或烷基矽烷基,X表示醚鍵、硫醚鍵、基-NH-或基-OY-(於此,Y係意指伸烷基,以其一端與Ar1 鍵結),Ar1 表示取代或非取代之2價芳香族烴基,Ar2 表示取代或非取代之1價芳香族烴基;m為0~3之整數]。
- 如請求項2之抗蛋白質吸附劑,其中前述聚合物係包含:具有前述疏水性基(2)之下述式(5)的構造單位(B)及/或具有前述疏水性基(3)之下述(6)的構造單位(C),[式(5)中,R2 係與前述式(2)同義],[式(6)中,R3 及m係與前述式(3)同義,R4 表示氫原子或碳數1~4之烷基]。
- 如請求項3之抗蛋白質吸附劑,其中前述構造單位(A)與前述構造單位(B)及/或前述構造單位(C)的組成比,以莫耳比為99/1~10/90。
- 如請求項2~4中任一項之抗蛋白質吸附劑,其中在式(5)之基R2 為碳數2~10之直鏈狀或分支鏈狀之烷基或烯基,或碳數5~15之單環狀或多環狀之烷基或烯基。
- 如請求項2~5中任一項之抗蛋白質吸附劑,其中前述聚合物係於其末端,具有一個以上前述疏水性基(4)者。
- 如請求項1~6中任一項之抗蛋白質吸附劑,其中前述聚合物的摻合量為0.05~99質量份,前述水系溶劑的摻合量為1~99.95質量份。
- 如請求項1~7中任一項之抗蛋白質吸附劑,其中前述水系溶劑係選自由水、醇、酮所成群組中之1種或2種以上。
- 一種抗蛋白質吸附膜,其係由如請求項1~8中任一項之抗蛋白質吸附劑所形成。
- 一種醫療用具,其係具備如請求項9之抗蛋白質吸附膜。
- 一種抗蛋白質吸附膜之製造方法,其特徵為將如請求項1~8中任一項之抗蛋白質吸附劑浸漬在基材後,進行乾燥。
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| CN116559486A (zh) * | 2023-05-05 | 2023-08-08 | 深圳市亚辉龙生物科技股份有限公司 | 抗蛋白质非特异性吸附采样针以及体外诊断仪器 |
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| US4028295A (en) * | 1976-01-08 | 1977-06-07 | Wesley-Jessen Inc. | Hydrophilic polymer and contact lens |
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| JPH072805B2 (ja) | 1986-05-06 | 1995-01-18 | 敏延 東村 | ポリアルケニルエ−テルの製造方法 |
| JPH01108202A (ja) | 1987-10-20 | 1989-04-25 | Toshinobu Higashimura | ポリアルケニルエーテルの製造方法 |
| JPH01108203A (ja) | 1987-10-20 | 1989-04-25 | Toshinobu Higashimura | ポリアルケニルエーテルの製造法 |
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| JP2004018639A (ja) * | 2002-06-14 | 2004-01-22 | Canon Inc | 親水コーティング方法、親水性媒体および医療用機材 |
| JP4528601B2 (ja) | 2004-11-08 | 2010-08-18 | 丸善石油化学株式会社 | 脂環式ビニルエーテル共重合体 |
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| JP5439551B2 (ja) | 2011-08-15 | 2014-03-12 | 一般財団法人川村理化学研究所 | ブロック共重合体の塗膜 |
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| JP2015050291A (ja) | 2013-08-30 | 2015-03-16 | マイクロン テクノロジー, インク. | 半導体装置及びその製造方法 |
| CN105593320B (zh) * | 2013-10-02 | 2018-07-10 | 株式会社钟化 | 涂布层、涂布液、涂布层的形成方法和医疗用具的制造方法 |
| JP6283511B2 (ja) * | 2013-12-18 | 2018-02-21 | 丸善石油化学株式会社 | 温度応答性樹脂組成物 |
| JP6462278B2 (ja) * | 2014-09-01 | 2019-01-30 | 国立大学法人九州大学 | 生体適合性コポリマー、これを利用する抗血栓コーティング剤及び医療用具 |
| JP6464866B2 (ja) * | 2015-03-25 | 2019-02-06 | 東ソー株式会社 | 表面修飾基材、ポリマー被覆基材、およびそれらの製造方法 |
| JP2016198426A (ja) * | 2015-04-14 | 2016-12-01 | Dic株式会社 | 抗炎症性コーティング剤およびこれを用いた抗炎症性材料および医療用具 |
| EP3424964B1 (en) | 2016-02-29 | 2023-08-02 | Maruzen Petrochemical Co., Ltd. | Copolymer, antithrombotic coating agent using same and medical device |
| WO2017204306A1 (ja) * | 2016-05-27 | 2017-11-30 | 旭硝子株式会社 | タンパク質付着防止剤、硬化物、硬化物の製造方法、および物品 |
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