Stereospecific cyclic poly(methyl methacrylate) and its topology-guided hierarchically controlled supramolecular assemblies

JM Ren; K Satoh; TK Goh; A Blencowe; K Nagai; K Ishitake; AJ Christofferson; G Yiapanis; I Yarovsky; M Kamigaito; GG Qiao

Journal article

Stereospecific cyclic poly(methyl methacrylate) and its topology-guided hierarchically controlled supramolecular assemblies

JM Ren, K Satoh, TK Goh, A Blencowe, K Nagai, K Ishitake, AJ Christofferson, G Yiapanis, I Yarovsky, M Kamigaito, GG Qiao

Angewandte Chemie International Edition | WILEY-V C H VERLAG GMBH | Published : 2014

DOI: 10.1002/anie.201308366

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 ..

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University of Melbourne Researchers

Greg Qiao Author

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Grants

Awarded by Australian Research Council

Awarded by Future Fellowships scheme

Awarded by Linkage Infrastructure, Equipment and Facilities (LIEF) funding scheme

Funding Acknowledgements

This research was supported by the Australian Research Council Discovery Scheme (DP0986271 (G. G. Q.) and DP0984915 (A. B.)), the Future Fellowships scheme (FT110100411 (G. G. Q.)), and the Linkage Infrastructure, Equipment and Facilities (LIEF) funding scheme (LE0882576), the Australian Government Endeavour Awards, the University of Melbourne PORES program, and an Australian Nanotechnology Network (ANN) Overseas Fellowship. We thank Stefanie Nina Guntari and Shereen Tan for assistance with graphic design, Dr. Qiang Fu for valuable discussions, and Prof. Eiji Yashima, Dr. Motonori Banno, and Yuki Naito at Nagoya University for AFM measurement and valuable discussions.