Emulsion-induced ordered microporous films using amphiphilic poly(ethylene oxide)-block-poly(n-butyl isocyanate) block copolymers
Well-defined poly(ethylene oxide)-block-poly(n-butyl isocyanate) (PEO-block-PBIC; AB) diblock copolymers were prepared with trichloropentadienyl titanium (IV) (CpTiCl₃) catalyst. Ordered microporous films (hexagonal pattern) were constructed by emulsion micelles of A₁₁₀B₂₃₀ diblock copolymer (the su...
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| Veröffentlicht in: | Journal of applied polymer science 2008-06, Vol.108 (6), p.3753-3759 |
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| creator | Ishizu, Koji Makino, Masataka Hatoyama, Naomasa Uchida, Satoshi |
| description | Well-defined poly(ethylene oxide)-block-poly(n-butyl isocyanate) (PEO-block-PBIC; AB) diblock copolymers were prepared with trichloropentadienyl titanium (IV) (CpTiCl₃) catalyst. Ordered microporous films (hexagonal pattern) were constructed by emulsion micelles of A₁₁₀B₂₃₀ diblock copolymer (the subscript indicates the degree of polymerization of each block component) formed from CHCl₃/H₂O/tetrahydrofuran (THF) = 100/5/10 (v/v) solution. The addition of THF promoted uniform micelles in immiscible CHCl₃/H₂O mixed solvent as well as the effect of phase transfer catalyst. Diblock copolymers formed spherical micelles, consisting of a PEO core and a PBIC corona. At some concentration, interaction between micelles forced a disorder-order transition, resulting in freezing of micelles in some superlattice. Subsequently, the leaving gaps among micelles were filled by PBIC block chains on a corona through the evaporation of organic solvents. At last, water within hydrophilic PEO core was vomited through the film matrix. We also constructed the microporous films using A₁₁₀B₂₃₀ diblock copolymer by the current water-assisted method. |
| doi_str_mv | 10.1002/app.28030 |
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Ordered microporous films (hexagonal pattern) were constructed by emulsion micelles of A₁₁₀B₂₃₀ diblock copolymer (the subscript indicates the degree of polymerization of each block component) formed from CHCl₃/H₂O/tetrahydrofuran (THF) = 100/5/10 (v/v) solution. The addition of THF promoted uniform micelles in immiscible CHCl₃/H₂O mixed solvent as well as the effect of phase transfer catalyst. Diblock copolymers formed spherical micelles, consisting of a PEO core and a PBIC corona. At some concentration, interaction between micelles forced a disorder-order transition, resulting in freezing of micelles in some superlattice. Subsequently, the leaving gaps among micelles were filled by PBIC block chains on a corona through the evaporation of organic solvents. At last, water within hydrophilic PEO core was vomited through the film matrix. 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Appl. Polym. Sci</addtitle><description>Well-defined poly(ethylene oxide)-block-poly(n-butyl isocyanate) (PEO-block-PBIC; AB) diblock copolymers were prepared with trichloropentadienyl titanium (IV) (CpTiCl₃) catalyst. Ordered microporous films (hexagonal pattern) were constructed by emulsion micelles of A₁₁₀B₂₃₀ diblock copolymer (the subscript indicates the degree of polymerization of each block component) formed from CHCl₃/H₂O/tetrahydrofuran (THF) = 100/5/10 (v/v) solution. The addition of THF promoted uniform micelles in immiscible CHCl₃/H₂O mixed solvent as well as the effect of phase transfer catalyst. Diblock copolymers formed spherical micelles, consisting of a PEO core and a PBIC corona. At some concentration, interaction between micelles forced a disorder-order transition, resulting in freezing of micelles in some superlattice. Subsequently, the leaving gaps among micelles were filled by PBIC block chains on a corona through the evaporation of organic solvents. At last, water within hydrophilic PEO core was vomited through the film matrix. We also constructed the microporous films using A₁₁₀B₂₃₀ diblock copolymer by the current water-assisted method.</description><subject>Applied sciences</subject><subject>emulsion-induced method</subject><subject>Exact sciences and technology</subject><subject>microporous film</subject><subject>Organic polymers</subject><subject>Physicochemistry of polymers</subject><subject>Polymers with particular properties</subject><subject>Preparation, kinetics, thermodynamics, mechanism and catalysts</subject><subject>rod-coil diblock copolymer</subject><subject>water-assisted method</subject><issn>0021-8995</issn><issn>1097-4628</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNp1kEtv1DAUhS0EEkNhwS_AGxCzcOtHnMeyqsoUaQSVaMXSurGd1tSJg52IZsk_rzsp3SFZvpbOd458D0LvGT1mlPITGMdjXlNBX6ANo01FipLXL9Ema4zUTSNfozcp_aKUMUnLDfp73s8-uTAQN5hZW4NDNDbm2TsdwxhimBPunO8TnpMbbjD0463LxzuNx-CXz3a6XbwdLA73ztgtaX3Qd-QgDaSdp8Vjl4JeYIDJbvFBxjo8Ar2N6S161YFP9t3TPELXX86vzi7I_vvu69npnmhJOSW6gwoEY0ZzA5y1pTBVYdp86ZIaa6UE1taskkVhmASpq7bhwPLDNNLWnThCn9bcMYbfs02T6l3S1nsYbN5RCZE7qXmTwe0K5v1TirZTY3Q9xEUxqh5LVrlkdSg5sx-fQiFp8F2EQbv0bOCZaWTFM3eycn-ct8v_A9Xp5eW_ZLI6XJrs_bMD4p0qK1FJ9fPbTskrVvDdfqfKzH9Y-Q6CgpuYf3H9g1MmKK1rxhouHgALhKbM</recordid><startdate>20080615</startdate><enddate>20080615</enddate><creator>Ishizu, Koji</creator><creator>Makino, Masataka</creator><creator>Hatoyama, Naomasa</creator><creator>Uchida, Satoshi</creator><general>Wiley Subscription Services, Inc., A Wiley Company</general><general>Wiley</general><scope>FBQ</scope><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20080615</creationdate><title>Emulsion-induced ordered microporous films using amphiphilic poly(ethylene oxide)-block-poly(n-butyl isocyanate) block copolymers</title><author>Ishizu, Koji ; Makino, Masataka ; Hatoyama, Naomasa ; Uchida, Satoshi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5020-cfa7a311dc2da21b63d74dbd74c60dee55a1b817544d15a5c7b92a1a5cd95e8f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Applied sciences</topic><topic>emulsion-induced method</topic><topic>Exact sciences and technology</topic><topic>microporous film</topic><topic>Organic polymers</topic><topic>Physicochemistry of polymers</topic><topic>Polymers with particular properties</topic><topic>Preparation, kinetics, thermodynamics, mechanism and catalysts</topic><topic>rod-coil diblock copolymer</topic><topic>water-assisted method</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ishizu, Koji</creatorcontrib><creatorcontrib>Makino, Masataka</creatorcontrib><creatorcontrib>Hatoyama, Naomasa</creatorcontrib><creatorcontrib>Uchida, Satoshi</creatorcontrib><collection>AGRIS</collection><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of applied polymer science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ishizu, Koji</au><au>Makino, Masataka</au><au>Hatoyama, Naomasa</au><au>Uchida, Satoshi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Emulsion-induced ordered microporous films using amphiphilic poly(ethylene oxide)-block-poly(n-butyl isocyanate) block copolymers</atitle><jtitle>Journal of applied polymer science</jtitle><addtitle>J. Appl. Polym. Sci</addtitle><date>2008-06-15</date><risdate>2008</risdate><volume>108</volume><issue>6</issue><spage>3753</spage><epage>3759</epage><pages>3753-3759</pages><issn>0021-8995</issn><eissn>1097-4628</eissn><coden>JAPNAB</coden><abstract>Well-defined poly(ethylene oxide)-block-poly(n-butyl isocyanate) (PEO-block-PBIC; AB) diblock copolymers were prepared with trichloropentadienyl titanium (IV) (CpTiCl₃) catalyst. Ordered microporous films (hexagonal pattern) were constructed by emulsion micelles of A₁₁₀B₂₃₀ diblock copolymer (the subscript indicates the degree of polymerization of each block component) formed from CHCl₃/H₂O/tetrahydrofuran (THF) = 100/5/10 (v/v) solution. The addition of THF promoted uniform micelles in immiscible CHCl₃/H₂O mixed solvent as well as the effect of phase transfer catalyst. Diblock copolymers formed spherical micelles, consisting of a PEO core and a PBIC corona. 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| subjects | Applied sciences emulsion-induced method Exact sciences and technology microporous film Organic polymers Physicochemistry of polymers Polymers with particular properties Preparation, kinetics, thermodynamics, mechanism and catalysts rod-coil diblock copolymer water-assisted method |
| title | Emulsion-induced ordered microporous films using amphiphilic poly(ethylene oxide)-block-poly(n-butyl isocyanate) block copolymers |
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