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Synthesis of Central Functionalized Asymmetric Triblock Copolymers for Surface Modification and Switchable Surface Properties - Published online 28 August 2000 - Well-defined central functionalized asymmetric triblock copolymers (CFABC) were designed as a new type of polymer-brush surface modifier with a short central functionalized block that could form chemical bonds with a suitable substrate surface. A combination of sequential living anionic polymerization and polymer modification reactions was used for the synthesis of two CFABCs: Polystyrene-b-poly(4-hydroxystyrene)-b-poly(methyl methacrylate) (3) and polystyrene-b-poly(4-urethanopropyl triethoxysilylstyrene)-b-poly(methyl methacrylate) (4). The central block of 3, poly(4-hydroxystyrene), was synthesized with a protected monomer, p-((tert-butyldimethylsilyl)oxy) styrene, for the polymerization step, and this synthesis was followed by the hydrolysis of the silyl protecting group. To obtain polymer 4, the phenol functionality in 3

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논문명Synthesis of Central Functionalized Asymmetric Triblock Copolymers for Surface Modification and Switchable Surface Properties - Published online 28 August 2000 - Well-defined central functionalized asymmetric triblock copolymers (CFABC) were designed as a new type of polymer-brush surface modifier with a short central functionalized block that could form chemical bonds with a suitable substrate surface. A combination of sequential living anionic polymerization and polymer modification reactions was used for the synthesis of two CFABCs: Polystyrene-b-poly(4-hydroxystyrene)-b-poly(methyl methacrylate) (3) and polystyrene-b-poly(4-urethanopropyl triethoxysilylstyrene)-b-poly(methyl methacrylate) (4). The central block of 3, poly(4-hydroxystyrene), was synthesized with a protected monomer, p-((tert-butyldimethylsilyl)oxy) styrene, for the polymerization step, and this synthesis was followed by the hydrolysis of the silyl protecting group. To obtain polymer 4, the phenol functionality in 3 was converted to triethoxysilyl groups by a quantitative reaction with isocyanato propyl triethoxysilane. Gel permeation chromatography and NMR characterization indicated that the block copolymers possessed controlled molecular weights and narrow molecular weight distributions. Preliminary atomic force microscopy and X-ray photoelectron spectroscopy analysis of the polymer brushes were reported./
저자명Wang, J
학술지명Journal of polymer science Part A Polyme
발행년도2000
권호사항Vol.38 No.20
발행처John Wiley & Sons
페이지p.3742-3750
언어eng

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No. 권호·제본정보 보기 소장처 소장사항 청구기호 구독 최근입수호
1 중앙도서관/3층 연속간행물(보존)/ 547 J86A 구독중 Vol.45 No.16
2 중앙도서관/3층 연속간행물실/ 547 J86A 구독중 Vol.45 No.24

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