Functionalized surfaces of polylactide modified by Langmuir-Blodgett films of amphiphilic block copolymers
To modify the surface of poly(L-lactide) (PLA) supports, we have investigated the feasibility to deposit on the PLA surface Langmuir-Blodgett films of amphiphilic block copolymers based on poly(L-lactide). AB and ABA block copolymers were prepared with PLA as the A block and either poly(ethylene oxi...
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| Veröffentlicht in: | Journal of materials science. Materials in medicine 2003-02, Vol.14 (2), p.143-149 |
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| creator | Kubies, D Machová, L Brynda, E Lukás, J Rypácek, F |
| description | To modify the surface of poly(L-lactide) (PLA) supports, we have investigated the feasibility to deposit on the PLA surface Langmuir-Blodgett films of amphiphilic block copolymers based on poly(L-lactide). AB and ABA block copolymers were prepared with PLA as the A block and either poly(ethylene oxide), alpha-methoxy-omega-hydroxy poly(ethylene oxide), alpha-carboxy-omega-hydroxy poly(ethylene oxide) or poly(L-aspartic acid) as the B blocks. Films with phase-separated hydrophilic and hydrophobic blocks in a bilayer "brush" structure were prepared by compression of the copolymer Langmuir films on the water/air interface. The interfacial behavior of the monolayers and the effect of the copolymer composition on the phase separation was followed by measurements of the surface-pressure/area isotherms using a Langmuir trough and by contact angle measurement of deposited Langmuir-Blodgett (LB) films. The phase separation of the hydrophilic and PLA blocks is more effective in diblock AB copolymers compared with triblock ABA copolymers. The presence of ionic groups in the hydrophilic chains facilitates penetration of hydrophilic segments into the water subphase. Dynamic contact angle measurements were used to study the stability of the LB-films transferred on the PLA support and the changes in the surface properties upon incubation of surfaces in water. |
| doi_str_mv | 10.1023/A:1022019813078 |
| format | Article |
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AB and ABA block copolymers were prepared with PLA as the A block and either poly(ethylene oxide), alpha-methoxy-omega-hydroxy poly(ethylene oxide), alpha-carboxy-omega-hydroxy poly(ethylene oxide) or poly(L-aspartic acid) as the B blocks. Films with phase-separated hydrophilic and hydrophobic blocks in a bilayer "brush" structure were prepared by compression of the copolymer Langmuir films on the water/air interface. The interfacial behavior of the monolayers and the effect of the copolymer composition on the phase separation was followed by measurements of the surface-pressure/area isotherms using a Langmuir trough and by contact angle measurement of deposited Langmuir-Blodgett (LB) films. The phase separation of the hydrophilic and PLA blocks is more effective in diblock AB copolymers compared with triblock ABA copolymers. The presence of ionic groups in the hydrophilic chains facilitates penetration of hydrophilic segments into the water subphase. Dynamic contact angle measurements were used to study the stability of the LB-films transferred on the PLA support and the changes in the surface properties upon incubation of surfaces in water.</description><identifier>ISSN: 0957-4530</identifier><identifier>EISSN: 1573-4838</identifier><identifier>DOI: 10.1023/A:1022019813078</identifier><identifier>PMID: 15348486</identifier><language>eng</language><publisher>United States: Springer Nature B.V</publisher><subject>Biomedical materials ; Block copolymers ; Brushes ; Contact angle ; Copolymers ; Langmuir-Blodgett films ; Materials science ; Oxides ; Phase separation ; Surface properties</subject><ispartof>Journal of materials science. 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Materials in medicine</title><addtitle>J Mater Sci Mater Med</addtitle><description>To modify the surface of poly(L-lactide) (PLA) supports, we have investigated the feasibility to deposit on the PLA surface Langmuir-Blodgett films of amphiphilic block copolymers based on poly(L-lactide). AB and ABA block copolymers were prepared with PLA as the A block and either poly(ethylene oxide), alpha-methoxy-omega-hydroxy poly(ethylene oxide), alpha-carboxy-omega-hydroxy poly(ethylene oxide) or poly(L-aspartic acid) as the B blocks. Films with phase-separated hydrophilic and hydrophobic blocks in a bilayer "brush" structure were prepared by compression of the copolymer Langmuir films on the water/air interface. The interfacial behavior of the monolayers and the effect of the copolymer composition on the phase separation was followed by measurements of the surface-pressure/area isotherms using a Langmuir trough and by contact angle measurement of deposited Langmuir-Blodgett (LB) films. 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Dynamic contact angle measurements were used to study the stability of the LB-films transferred on the PLA support and the changes in the surface properties upon incubation of surfaces in water.</description><subject>Biomedical materials</subject><subject>Block copolymers</subject><subject>Brushes</subject><subject>Contact angle</subject><subject>Copolymers</subject><subject>Langmuir-Blodgett films</subject><subject>Materials science</subject><subject>Oxides</subject><subject>Phase separation</subject><subject>Surface properties</subject><issn>0957-4530</issn><issn>1573-4838</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNqF0TtPwzAQB3ALgaA8ZjYUMQBLwI_YPrMVxEuqxAJz5dgOuDh1iZOhfHpcKAsDSCfdcL_733AIHRJ8TjBlF-PL3CgmCgjDEjbQiHDJygoYbKIRVlyWFWd4B-2mNMMYV4rzbbRDOKugAjFCs9thbnof5zr4D2eLNHSNNi4VsSkWMSyDzlPrijZa3_gM6mUx0fOXdvBdeRWifXF9XzQ-tF8rul28-lzBm6IO0bwVJq5iWtelfbTV6JDcwbrvoefbm6fr-3LyePdwPZ6UhknRl9oYcBiM1brmtbMVc9zQGoiV2iouMKNKqIY0VIOrtakZUbRxVlZYcKUk20On37mLLr4PLvXT1ifjQtBzF4c0BUaIxJWELE_-lJJwACD4X0glSCEoz_DsT0iEJAyokjTT4190Focu_yHf5YJRSdQq72iNhrp1drrofKu75fTngewTjV-d0w</recordid><startdate>200302</startdate><enddate>200302</enddate><creator>Kubies, D</creator><creator>Machová, L</creator><creator>Brynda, E</creator><creator>Lukás, J</creator><creator>Rypácek, F</creator><general>Springer Nature B.V</general><scope>NPM</scope><scope>3V.</scope><scope>7QF</scope><scope>7QO</scope><scope>7QQ</scope><scope>7SC</scope><scope>7SE</scope><scope>7SP</scope><scope>7SR</scope><scope>7TA</scope><scope>7TB</scope><scope>7U5</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>88I</scope><scope>8AO</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>F28</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H8D</scope><scope>H8G</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>JQ2</scope><scope>K9.</scope><scope>KB.</scope><scope>KR7</scope><scope>L7M</scope><scope>LK8</scope><scope>L~C</scope><scope>L~D</scope><scope>M0S</scope><scope>M1P</scope><scope>M2P</scope><scope>M7P</scope><scope>P64</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>Q9U</scope><scope>S0W</scope><scope>7X8</scope></search><sort><creationdate>200302</creationdate><title>Functionalized surfaces of polylactide modified by Langmuir-Blodgett films of amphiphilic block copolymers</title><author>Kubies, D ; 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Materials in medicine</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kubies, D</au><au>Machová, L</au><au>Brynda, E</au><au>Lukás, J</au><au>Rypácek, F</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Functionalized surfaces of polylactide modified by Langmuir-Blodgett films of amphiphilic block copolymers</atitle><jtitle>Journal of materials science. Materials in medicine</jtitle><addtitle>J Mater Sci Mater Med</addtitle><date>2003-02</date><risdate>2003</risdate><volume>14</volume><issue>2</issue><spage>143</spage><epage>149</epage><pages>143-149</pages><issn>0957-4530</issn><eissn>1573-4838</eissn><abstract>To modify the surface of poly(L-lactide) (PLA) supports, we have investigated the feasibility to deposit on the PLA surface Langmuir-Blodgett films of amphiphilic block copolymers based on poly(L-lactide). AB and ABA block copolymers were prepared with PLA as the A block and either poly(ethylene oxide), alpha-methoxy-omega-hydroxy poly(ethylene oxide), alpha-carboxy-omega-hydroxy poly(ethylene oxide) or poly(L-aspartic acid) as the B blocks. Films with phase-separated hydrophilic and hydrophobic blocks in a bilayer "brush" structure were prepared by compression of the copolymer Langmuir films on the water/air interface. The interfacial behavior of the monolayers and the effect of the copolymer composition on the phase separation was followed by measurements of the surface-pressure/area isotherms using a Langmuir trough and by contact angle measurement of deposited Langmuir-Blodgett (LB) films. The phase separation of the hydrophilic and PLA blocks is more effective in diblock AB copolymers compared with triblock ABA copolymers. The presence of ionic groups in the hydrophilic chains facilitates penetration of hydrophilic segments into the water subphase. Dynamic contact angle measurements were used to study the stability of the LB-films transferred on the PLA support and the changes in the surface properties upon incubation of surfaces in water.</abstract><cop>United States</cop><pub>Springer Nature B.V</pub><pmid>15348486</pmid><doi>10.1023/A:1022019813078</doi><tpages>7</tpages></addata></record> |
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| issn | 0957-4530 1573-4838 |
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| source | SpringerNature Journals |
| subjects | Biomedical materials Block copolymers Brushes Contact angle Copolymers Langmuir-Blodgett films Materials science Oxides Phase separation Surface properties |
| title | Functionalized surfaces of polylactide modified by Langmuir-Blodgett films of amphiphilic block copolymers |
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