Triple hydrogen‐bonding block copolymers via RAFT polymerization: Synthesis,vesicle formation,and molecule‐recognition behavior |
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| Authors: | Shixue Wang Maosheng Li Hang Zhang Xinxiao Yang Xiaojie Zhang Youhua Tao Xianhong Wang |
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| Affiliation: | Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, People's Republic of China |
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| Abstract: | Reversible addition fragmentation chain transfer polymerization afforded triple hydrogen‐bonding block copolymers (PBA‐b‐PDAD) with well‐controlled molecular weight and molecular weight distributions (1.2–1.4). The complexation via specific hydrogen bonding between these block copolymers in CHCl3 provided an unprecedented approach for the formation of spherical vesicles. Atomic force microscopy and dynamic light‐scattering measurements revealed that the resultant polymeric vesicles were about 100 nm in radius. Triple hydrogen‐bonding interactions between maleimide and PBA‐b‐PDAD resulted in the dissociation of these spherical vesicles, facilitating the guest molecule recognition. The hydrogen‐bonding interaction between maleimide and the PBA‐b‐PDAD was further confirmed by 1H NMR and FTIR spectra. These results indicated that these vesicles of triple hydrogen‐bonding block copolymer could be a potential new vehicle for molecular recognition. © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2016 , 54, 1633–1638 |
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| Keywords: | diblock copolymers molecular recognition reversible addition fragmentation chain transfer (RAFT) polymerization self‐assembly triple hydrogen‐bonding vesicle |
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