Journal article
Highly Living Stars via Core-First Photo-RAFT Polymerization: Exploitation for Ultra-High Molecular Weight Star Synthesis
Stephanie Allison-Logan, Fatemeh Karimi, Yongkang Sun, Thomas G McKenzie, Mitchell D Nothling, Gary Bryant, Greg G Qiao
ACS Macro Letters | American Chemical Society (ACS) | Published : 2019
Abstract
Star polymers are highly functional materials that display unique properties in comparison to linear polymers, making them valuable in a wide range of applications. Currently, ultra-high molecular weight (UHMW) star polymers synthesized using controlled radical polymerization are prone to termination reactions that have undesirable effects, such as star–star coupling. Herein, we report the synthesis of the largest star polymers to date using controlled radical techniques via xanthate-mediated photo-reversible addition–fragmentation chain transfer (RAFT) polymerization using a core-first approach. Polymerization from xanthate-functionalized cores was highly living, enabling the synthesis of w..
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Awarded by Australian Research Council (ARC)
Funding Acknowledgements
The authors acknowledge the Australian Research Council (ARC) for funding in the form of a Discovery Project (DP140100002). S.A.-L. is the recipient of a Melbourne International Engagement Award, and F.K. is the recipient of an International Postgraduate Research Scholarship. G.B. acknowledges the Australian Microscopy & Microanalysis Research Facility at RMIT University. The authors would also like to thank Prof. Krzysztof Matyjaszewski for his insightful suggestions and discussions.