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Cellulose-based graft copolymers with controlled architecture prepared in a homogeneous phase
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SYSNO ASEP 0364282 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Cellulose-based graft copolymers with controlled architecture prepared in a homogeneous phase Author(s) Raus, Vladimír (UMCH-V) RID, ORCID
Štěpánek, M. (CZ)
Uchman, M. (CZ)
Šlouf, Miroslav (UMCH-V) RID, ORCID
Látalová, Petra (UMCH-V)
Čadová, Eva (UMCH-V) RID
Netopilík, Miloš (UMCH-V) RID
Kříž, Jaroslav (UMCH-V) RID
Dybal, Jiří (UMCH-V) RID, ORCID
Vlček, Petr (UMCH-V) RIDSource Title Journal of Polymer Science. Part A - Polymer Chemistry. - : WILEY-BLACKWELL - ISSN 0887-624X
Roč. 49, č. 20 (2011), s. 4353-4367Number of pages 15 s. Language eng - English Country US - United States Keywords atom transfer radical polymerization (ATRP) ; cellulose ; graft copolymers Subject RIV JI - Composite Materials R&D Projects GA106/09/1348 GA ČR - Czech Science Foundation (CSF) GAP208/10/0353 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z40500505 - UMCH-V (2005-2011) UT WOS 000295714800007 DOI 10.1002/pola.24876 Annotation Cellulose-based macroinitiators with predetermined number of initiation sites were synthesized by acylation of microcrystalline cellulose AVICEL PH-101 with 2-bromoisobutyryl bromide under homogeneous reaction conditions in the DMAc/LiCl solvent system. The influence of different methods of cellulose activation on the acylation efficiency and reproducibility was investigated. A new activation protocol, based on solvent exchange to 1,4-dioxane, was introduced. Prepared macroinitiators were used for grafting with styrene and MMA using optimized ATRP reaction conditions to achieve well-controlled polymerizations with high initiation efficiency. In addition, SET LRP technique employing Cu(0) as the catalyst was used for the first time to prepare cellulose-graft-polystyrene and cellulose-graft-poly(MMA) copolymers in a homogeneous phase. Moreover, some of the prepared copolymers were characterized by static and dynamic light scattering, and microscopic techniques. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2012
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