One‐Pot Synthesis of ABCDE Multiblock Copolymers with Hydrophobic, Hydrophilic, and Semi‐Fluorinated Segments. Issue 46 (24th October 2017)

• Record Type: Journal Article
• Authors: Anastasaki, Athina; Oschmann, Bernd; Willenbacher, Johannes; Melker, Anna; Van Son, Martin H. C.; Truong, Nghia P.; Schulze, Morgan W.; Discekici, Emre H.; McGrath, Alaina J.; Davis, Thomas P.; Bates, Christopher M.; Hawker, Craig J.
• Is Part Of: Angewandte Chemie international edition. Volume 56:Issue 46(2017)
• Page Start: 14483
• Page End: 14487
• Publication Date: 2017-10-24
• Subjects: controlled polymerization -- light-mediated polymerization -- multiblock copolymers -- sequence control; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201707646
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: The scope and accessibility of sequence‐controlled multiblock copolymers is demonstrated by direct "in situ" polymerization of hydrophobic, hydrophilic and fluorinated monomers. Key to the success of this strategy is the ability to synthesize ABCDE, EDCBA and EDCBABCDE sequences with high monomer conversions (>98 %) through iterative monomer additions, yielding excellent block purity and low overall molar mass dispersities (Ð<1.16). Small‐angle X‐ray scattering showed that certain sequences can form well‐ordered mesostructures. This synthetic approach constitutes a simple and versatile platform for expanding the availability of tailored polymeric materials from readily available monomers. Abstract : Modular polymerization : A light‐mediated ATRP protocol enables the facile, one‐pot synthesis of complex multiblock copolymers from readily available hydrophilic, hydrophobic and semi‐fluorinated monomers. The sequence‐defined nature of these in situ polymerizations is enabled by near‐quantitative monomer conversions.