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One-pot synthesis of amphiphilic multiblock poly(2-oxazoline)s via para-fluoro-thiol click reactions

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Zhao, Tieshuai, Drain, Ben, Yilmaz, Gokhan and Becer, C. Remzi (2021) One-pot synthesis of amphiphilic multiblock poly(2-oxazoline)s via para-fluoro-thiol click reactions. Polymer Chemistry, 12 (44). pp. 6392-6403. doi:10.1039/d1py00944c ISSN 1759-9954.

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Official URL: https://doi.org/10.1039/d1py00944c

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Abstract

A clickable initiator, pentafluoro benzyl bromide, has been investigated for the cationic ring opening polymerization of poly(2-oxazolines). Additionally, the clickable alpha end group was then utilized in a para-fluoro-thiol click reaction to synthesise linear diblock, tetrablock, multiblock copolymers as well as star shaped poly(2-oxazoline)s using dithiol compounds as terminating agents. Thus, a one-pot approach combining the para-fluoro-thiol click reaction and direct termination of the poly(2-oxazoline) living chain end with 4,4-thiobisbenzenethiol has been performed to prepare multiblock copolymers of poly(2-ethyl-2-oxazoline) (PEtOx) and poly((2-ethyl-2-oxazoline)-b-(2-methyl-2-oxazoline) (PEtOx-mb-PMeOx). All obtained polymers were characterized by Size Exclusion Chromatography (SEC), 1H Nuclear Magnetic Resonance (NMR) and Matrix-Assisted Laser Desorption/Ionization-Time of Flight (MALDI-ToF) mass spectrometry. Last but not least, the self-assembly properties of prepared amphiphilic polymers were studied with DLS and TEM. Nanoparticles with a diameter ranging from 184 nm to 250 nm were observed in TEM for PEtOx-mb-PMeOx copolymers.

Item Type: Journal Article
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Science, Engineering and Medicine > Science > Chemistry
SWORD Depositor: Library Publications Router
Library of Congress Subject Headings (LCSH): Block copolymers -- Synthesis
Journal or Publication Title: Polymer Chemistry
Publisher: Royal Society of Chemistry
ISSN: 1759-9954
Official Date: 28 November 2021
Dates:
DateEvent
28 November 2021Published
20 September 2021Available
20 September 2021Accepted
Volume: 12
Number: 44
Page Range: pp. 6392-6403
DOI: 10.1039/d1py00944c
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access (Creative Commons)
Date of first compliant deposit: 6 December 2021
Date of first compliant Open Access: 7 December 2021
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
UNSPECIFIEDChina Scholarship Councilhttp://dx.doi.org/10.13039/501100004543
UNSPECIFIEDUniversity of Warwickhttp://dx.doi.org/10.13039/501100000741

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