Počet záznamů: 1
Low temperature aqueous living/controlled (RAFT) polymerization of carboxybetaine methacrylamide up to high molecular weights
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SYSNO ASEP 0360784 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Low temperature aqueous living/controlled (RAFT) polymerization of carboxybetaine methacrylamide up to high molecular weights Tvůrce(i) Rodriguez-Emmenegger, Cesar Adolfo (UMCH-V) RID
Schmidt, B. V. K. J. (DE)
Sedláková, Zdeňka (UMCH-V) RID, ORCID
Šubr, Vladimír (UMCH-V) RID, ORCID
Bologna Alles, A. (UY)
Brynda, Eduard (UMCH-V) RID
Barner-Kowollik, C. (DE)Zdroj.dok. Macromolecular Rapid Communications. - : Wiley - ISSN 1022-1336
Roč. 32, č. 13 (2011), s. 958-965Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. DE - Německo Klíč. slova biofouling ; carboxybetaine methacrylamide ; low temperature polymerization Vědní obor RIV CD - Makromolekulární chemie CEP KAN200670701 GA AV ČR - Akademie věd IAAX00500803 GA AV ČR - Akademie věd CEZ AV0Z40500505 - UMCH-V (2005-2011) UT WOS 000292547100003 DOI 10.1002/marc.201100176 Anotace Poly(carboxybetaine)s (poly(CB)s) are unique, emerging as the only ultra-low fouling materials allowing the preparation of biosensors, fouling resistant nanoparticles, and non-adhesive surfaces for bacteria. Poly(CB)s have been prepared via atom transfer radical polymerization, however no control was achieved. Herein, the first successful living/controlled reversible addition fragmentation transfer polymerization of (3-methacryloylamino-propyl)-(2-carboxy-ethyl)-dimethyl-ammonium in acetate buffer (pH 5.2) at 70 and 37 °C is reported. The polymerization afforded very high molecular weight polymers (250 000 g • mol−1 in less than 6 h) with low PDI (<1.3) at 70 °C. The polymerization was additionally carried out at 37 °C achieving yet lower PDIs (1.06 ≤ PDI ≤ 1.15) even at 90% conversion, demonstrating the suitability of the polymerization conditions for bioconjugate grafting. Block copolymerization from biologically relevant poly[HPMA] macroCTAs was additionally performed. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2012
Počet záznamů: 1