Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 53, Issue 2, Pages 459-464Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201308366
Keywords
cyclic polymers; self-assembly; stereocomplexes; supramolecular chemistry; tacticity
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Funding
- Australian Research Council [DP0986271, DP0984915]
- Future Fellowships scheme [FT110100411]
- Linkage Infrastructure, Equipment and Facilities (LIEF) funding scheme [LE0882576]
- Australian Government Endeavour Awards
- University of Melbourne PORES program
- Australian Nanotechnology Network (ANN) Overseas Fellowship
- Australian Research Council [DP0984915, LE0882576, DP0986271] Funding Source: Australian Research Council
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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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