Well-defined linear and grafted poly(2-isopropenyl-2-oxazoline)s prepared via copper-mediated reversible-deactivation radical polymerization methods
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F20%3A00523715" target="_blank" >RIV/61389013:_____/20:00523715 - isvavai.cz</a>
Result on the web
<a href="https://pubs.acs.org/doi/abs/10.1021/acs.macromol.9b02662" target="_blank" >https://pubs.acs.org/doi/abs/10.1021/acs.macromol.9b02662</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.macromol.9b02662" target="_blank" >10.1021/acs.macromol.9b02662</a>
Alternative languages
Result language
angličtina
Original language name
Well-defined linear and grafted poly(2-isopropenyl-2-oxazoline)s prepared via copper-mediated reversible-deactivation radical polymerization methods
Original language description
2-Isopropenyl-2-oxazoline (IPOx) is an important double functional monomer with multiple potential applications. However, until now, the attempts at reversible-deactivation radical polymerization (RDRP) of IPOx via its double bond have met with little success, leading to low conversions and high-dispersity products. Here, we demonstrate that IPOx can be polymerized through aqueous Cu(0)-mediated RDRP in a controlled way using the 2-chloropropionitrile/CuCl(CuCl2)/TPMA initiation and catalytic system and 0.67 M NaCl as a solvent. It is shown that the polymerization is highly sensitive to the initiator concentration and the CuCl/CuCl2 ratio. However, with careful optimization of the polymerization parameters, low-dispersity products can be obtained at quantitative conversions. The synthesized poly(IPOx) polymers were subsequently transformed into different ATRP macroinitiators by the reaction of the pendant 2-oxazoline units with 2-bromoisobutyric or 2-chloropropionic acid under optimized reaction conditions. Styrene and methyl methacrylate were then grafted as model monomers from these macroinitiators under ATRP conditions, confirming that defined poly(IPOx)-based graft copolymers with controlled grafting density and molecular weights of the poly(IPOx) backbone and of the grafts are accessible by the presented method. This provides a straightforward route to a new class of 2-oxazoline-based materials.
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/GA19-04047S" target="_blank" >GA19-04047S: Biochemical studies of membrane rafts and immunoreceptors based on cell membrane-disintegrating copolymers</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Macromolecules
ISSN
0024-9297
e-ISSN
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Volume of the periodical
53
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
2077-2087
UT code for WoS article
000526395700020
EID of the result in the Scopus database
2-s2.0-85082335186