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SuFExable Polymers with Helical Structures Derived from Thionyl Tetrafluoride (SOF4)

preprint
submitted on 19.10.2019 and posted on 23.10.2019 by Suhua Li, Gencheng Li, Bing Gao, Sidharam P. Pujari, Xiaoyan Chen, Hyunseok Kim, Feng Zhou, Liana M. Klivansky, Yi Liu, Hafedh Driss, Rachael E. Impey, Tatiana P. Soares da Costa, Jianmei Lu, Peng Wu, Han Zuilhof, John E. Moses, K. Barry Sharpless
The first SuFEx click chemistry synthesis of SOF4-derived copolymers based upon the polymerization of bis(iminosulfur oxydifluorides) and bis(aryl silyl ethers) is described. This novel class of SuFEx polymer presents two key characteristics: First, the newly created [-N=S(=O)F-O-] polymer backbone linkages are themselves SuFExable and primed to undergo further high-yielding and precise SuFEx-based post-modification with phenols or amines to yield branched functional polymers. Second, studies of individual polymer chains of several of these new materials indicate the presence of helical polymer structures, which itself suggests a preferential approach of new monomers onto the growing polymer chain upon the formation of the stereogenic linking moiety.

Funding

the National Science Foundation (CHE-1610987)

Chemical Tools for Studying Fucosylated Glycans

National Institute of General Medical Sciences

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Developing next generation click chemistry

Australian Research Council

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Towards herbicide cocktails with a new mode of action to avert resistance

Australian Research Council

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Guangdong Natural Science Funds for Distinguished Young Scholar (2018B030306018)

the Program for Guangdong Introducing Innovative and Entrepreneurial Teams (2017ZT07C069)

National Science Foundation of China (#21871208)

King Abdulaziz University

the Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231

History

Email Address of Submitting Author

lisuhua5@mail.sysu.edu.cn

Institution

School of Chemistry, Sun Yat-Sen University

Country

China

ORCID For Submitting Author

0000-0001-5489-8643

Declaration of Conflict of Interest

The authors declare the following competing financial interest(s): Sharpless, K. B., Wu, P.; Li, S.; Liu, Z.; Gao, B., Thionyl tetrafluoride modified compounds and uses; provisional patent application Serial Number US62/427,489, filed on Nov/29/2016. International patent application no. PCT/US2017/063746.

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