Stereospecific Cyclic Poly(methyl methacrylate) and Its Topology‐Guided Hierarchically Controlled Supramolecular Assemblies |
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| Authors: | Jing Ming Ren Prof Kotaro Satoh Dr Tor Kit Goh Dr Anton Blencowe Dr Kanji Nagai Dr Kenji Ishitake Dr Andrew Joseph Christofferson Dr George Yiapanis Prof Irene Yarovsky Prof Masami Kamigaito Prof Greg Guanghua Qiao |
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| Institution: | 1. Polymer Science Group, Department of Chemical and Biomolecular Engineering, University of Melbourne, Melbourne, VIC 3010 (Australia) http://www.chemeng.unimelb.edu.au/polymer‐science;2. Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo‐cho, Chikusa‐ku, Nagoya 464‐8603 (Japan);3. School of Aerospace, Mechanical and Manufacturing Engineering, RMIT University, GPO Box 2476, Victoria 3001 (Australia) |
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| Abstract: | In this study, the stereocomplexation between a novel stereospecific cyclic vinyl polymer, that is, cyclic syndiotactic poly(methyl methacrylate) (st‐PMMA), with the complementary linear isotactic (it‐) PMMA was investigated. Surprising new insight into the effects of the topology (i.e., end groups), size, and tacticity of the assembling components on stereocomplex formation was obtained. Characterization of the stereocomplexes revealed that the self‐assembly of cyclic st‐PMMAs and linear it‐PMMAs resulted in the formation of an unprecedented “polypseudorotaxane‐type” supramolecular assembly. This stereocomplex exhibited remarkably different physical properties as compared to the conventional PMMA triple‐helix stereocomplex as a result of the restricted topology imposed by the cyclic st‐PMMA assembling component. |
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| Keywords: | cyclic polymers self‐assembly stereocomplexes supramolecular chemistry tacticity |
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