Počet záznamů: 1
Fluorinated 2-alkyl-2-oxazolines of high reactivity: spacer-length-induced acceleration for cationic ring-opening polymerization as a basis for triphilic block copolymer synthesis
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SYSNO ASEP 0483138 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Fluorinated 2-alkyl-2-oxazolines of high reactivity: spacer-length-induced acceleration for cationic ring-opening polymerization as a basis for triphilic block copolymer synthesis Tvůrce(i) Kaberov, Leonid I. (UMCH-V) ORCID
Verbraeken, B. (BE)
Riabtseva, Anna (UMCH-V)
Brus, Jiří (UMCH-V) RID, ORCID
Talmon, Y. (IL)
Štěpánek, Petr (UMCH-V) RID, ORCID
Hoogenboom, R. (BE)
Filippov, Sergey K. (UMCH-V) RID, ORCID, SAIZdroj.dok. ACS Macro Letters. - : American Chemical Society
Roč. 7, č. 1 (2018), s. 7-10Poč.str. 4 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova poly(2-oxazoline)s ; triblock copolymers ; fluorinated Vědní obor RIV BO - Biofyzika Obor OECD Biophysics CEP GA17-00973S GA ČR - Grantová agentura ČR Institucionální podpora UMCH-V - RVO:61389013 UT WOS 000423016200002 EID SCOPUS 85040575229 DOI https://doi.org/10.1021/acsmacrolett.7b00954 Anotace The synthesis of defined triphilic terpolymers with hydrophilic, lyophilic, and fluorophilic blocks is an important challenge as a basis for the development of multicompartment self-assembled structures with potential for, e.g., cascade catalysis and multidrug loading. The synthesis of fluorophilic poly(2-oxazoline)s generally suffers from a very low reactivity of fluorinated 2-oxazoline monomers in cationic ring-opening polymerization (CROP). We report a systematic study on overcoming the extremely low reactivity of 2-perfluoroalkyl-2-oxazolines in CROP by the insertion of methyl and ethyl hydrocarbon spacers between the 2-oxazoline ring and the trifluoromethyl group. The kinetic studies showed the gradual increase of the rate of polymerization with increasing of the hydrocarbon spacer length. The monomer with an ethyl spacer was found to have similar reactivity as 2-alkyl-2-oxazolines and allowed the synthesis of defined triphilic triblock copolymers. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2019
Počet záznamů: 1