Straightforward synthesis of complex polymeric architectures with ultra-high chain density
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F24%3A00588494" target="_blank" >RIV/61389013:_____/24:00588494 - isvavai.cz</a>
Result on the web
<a href="https://pubs.rsc.org/en/content/articlelanding/2024/sc/d4sc01739k" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2024/sc/d4sc01739k</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/D4SC01739K" target="_blank" >10.1039/D4SC01739K</a>
Alternative languages
Result language
angličtina
Original language name
Straightforward synthesis of complex polymeric architectures with ultra-high chain density
Original language description
Synthesis of complex polymeric architectures (CPAs) via reversible-deactivation radical polymerization (RDRP) currently relies on the rather inefficient attachment of monofunctional initiation/transfer sites onto CPA precursors. This drawback seriously limits the overall functionality of the resulting (macro)initiators and, consequently, also the total number of installable polymeric chains, which represents a significant bottleneck in the design of new polymeric materials. Here, we show that the (macro)initiator functionality can be substantially amplified by using trichloroacetyl isocyanate as a highly efficient vehicle for the rapid and clean introduction of trichloroacetyl groups (TAGs) into diverse precursors. Through extensive screening of polymerization conditions and comprehensive NMR and triple-detection SEC studies, we demonstrate that TAGs function as universal trifunctional initiators of copper-mediated RDRP of different monomer classes, affording low-dispersity polymers in a wide molecular weight range. We thus unlock access to a whole new group of ultra-high chain density CPAs previously inaccessible via simple RDRP protocols. We highlight new opportunities in CPA synthesis through numerous examples, including the de novo one-pot synthesis of a novel “star-on-star” CPA, the preparation of β-cyclodextrin-based 45-arm star polymers, and facile grafting from otherwise problematic cellulose substrates both in solution and from surface, obtaining effortlessly ultra-dense, ultra-high-molecular weight bottle-brush copolymers and thick spatially-controlled polymeric coatings, respectively.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10404 - Polymer science
Result continuities
Project
<a href="/en/project/LM2023053" target="_blank" >LM2023053: Czech National Node to the European Infrastructure for Translational Medicine</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Chemical Science
ISSN
2041-6520
e-ISSN
2041-6539
Volume of the periodical
15
Issue of the periodical within the volume
32
Country of publishing house
GB - UNITED KINGDOM
Number of pages
15
Pages from-to
12739-12753
UT code for WoS article
001271122200001
EID of the result in the Scopus database
2-s2.0-85198966309