Microwave-assisted RAFT polymerization of N-(2-hydroxypropyl) methacrylamide and its relevant copolymers
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F21%3A00541436" target="_blank" >RIV/61389013:_____/21:00541436 - isvavai.cz</a>
Výsledek na webu
<a href="https://www.sciencedirect.com/science/article/pii/S1381514821000675?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1381514821000675?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.reactfunctpolym.2021.104875" target="_blank" >10.1016/j.reactfunctpolym.2021.104875</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Microwave-assisted RAFT polymerization of N-(2-hydroxypropyl) methacrylamide and its relevant copolymers
Popis výsledku v původním jazyce
A rapid and eco-friendly reversible addition-fragmentation chain transfer (RAFT) polymerization reaction of the N-(2-hydroxypropyl) methacrylamide (HPMA) monomer under microwave irradiation (MWI) was demonstrated. A systematic investigation to determine the optimal conditions for the polymerization, such as the reaction time, solvents, monomer stoichiometry and RAFT agents, was implemented. The polymerization kinetics were obtained using two different chain transfer agents (CTAs), namely, commercial 4-cyano-4-(phenylcarbonothioylthio)pentanoic acid and synthesized 4-cyano-4-(((ethylthio)carbonothioyl)thio)pentanoic acid, in the presence of 4,4′-azobis(4-cyanovaleric acid) as the initiator in various solvents. The controlled living character of the RAFT polymerization under MWI conditions was demonstrated by the linear increase in the number-average molecular weight (Mn) with monomer conversion. Moreover, good agreement between the theoretical and experimental Mn values was verified with pseudo-first-order kinetic plots, with low dispersities (Đ ≤ 1.04) if a favorable solvent and/or CTA was chosen. In addition, the ability of MWI to facilitate copolymer formation was demonstrated by the preparation of relevant copolymers, such as poly(HPMA-b-bocAPMA), poly(HPMA-b-MABH) and poly(HPMA-b-PDPA). Altogether, these facile synthetic approaches can find applications for the synthesis of PHPMA-based homo- and copolymers that have already been clinically tested and serve as hydrophilic high-potential alternatives to polyethylene oxide.
Název v anglickém jazyce
Microwave-assisted RAFT polymerization of N-(2-hydroxypropyl) methacrylamide and its relevant copolymers
Popis výsledku anglicky
A rapid and eco-friendly reversible addition-fragmentation chain transfer (RAFT) polymerization reaction of the N-(2-hydroxypropyl) methacrylamide (HPMA) monomer under microwave irradiation (MWI) was demonstrated. A systematic investigation to determine the optimal conditions for the polymerization, such as the reaction time, solvents, monomer stoichiometry and RAFT agents, was implemented. The polymerization kinetics were obtained using two different chain transfer agents (CTAs), namely, commercial 4-cyano-4-(phenylcarbonothioylthio)pentanoic acid and synthesized 4-cyano-4-(((ethylthio)carbonothioyl)thio)pentanoic acid, in the presence of 4,4′-azobis(4-cyanovaleric acid) as the initiator in various solvents. The controlled living character of the RAFT polymerization under MWI conditions was demonstrated by the linear increase in the number-average molecular weight (Mn) with monomer conversion. Moreover, good agreement between the theoretical and experimental Mn values was verified with pseudo-first-order kinetic plots, with low dispersities (Đ ≤ 1.04) if a favorable solvent and/or CTA was chosen. In addition, the ability of MWI to facilitate copolymer formation was demonstrated by the preparation of relevant copolymers, such as poly(HPMA-b-bocAPMA), poly(HPMA-b-MABH) and poly(HPMA-b-PDPA). Altogether, these facile synthetic approaches can find applications for the synthesis of PHPMA-based homo- and copolymers that have already been clinically tested and serve as hydrophilic high-potential alternatives to polyethylene oxide.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10404 - Polymer science
Návaznosti výsledku
Projekt
Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2021
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Reactive and Functional Polymers
ISSN
1381-5148
e-ISSN
1873-166X
Svazek periodika
162
Číslo periodika v rámci svazku
May
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
8
Strana od-do
104875
Kód UT WoS článku
000640441600001
EID výsledku v databázi Scopus
2-s2.0-85102843293