Počet záznamů: 1  

Cellulose-based graft copolymers with controlled architecture prepared in a homogeneous phase

  1. 1.
    SYSNO ASEP0364282
    Druh ASEPJ - Článek v odborném periodiku
    Zařazení RIVJ - Článek v odborném periodiku
    Poddruh JČlánek ve WOS
    NázevCellulose-based graft copolymers with controlled architecture prepared in a homogeneous phase
    Tvůrce(i) Raus, Vladimír (UMCH-V) RID
    Štěpánek, M. (CZ)
    Uchman, M. (CZ)
    Šlouf, Miroslav (UMCH-V) RID
    Látalová, Petra (UMCH-V)
    Čadová, Eva (UMCH-V)
    Netopilík, Miloš (UMCH-V) RID
    Kříž, Jaroslav (UMCH-V) RID
    Dybal, Jiří (UMCH-V) RID
    Vlček, Petr (UMCH-V) RID
    Zdroj.dok.Journal of Polymer Science. Part A - Polymer Chemistry. - : WILEY-BLACKWELL - ISSN 0887-624X
    Roč. 49, č. 20 (2011), s. 4353-4367
    Poč.str.15 s.
    Jazyk dok.eng - angličtina
    Země vyd.US - Spojené státy americké
    Klíč. slovaatom transfer radical polymerization (ATRP) ; cellulose ; graft copolymers
    Vědní obor RIVJI - Kompozitní materiály
    CEPGA106/09/1348 GA ČR - Grantová agentura ČR
    GAP208/10/0353 GA ČR - Grantová agentura ČR
    CEZAV0Z40500505 - UMCH-V (2005-2011)
    UT WOS000295714800007
    DOI10.1002/pola.24876
    AnotaceCellulose-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.
    PracovištěÚstav makromolekulární chemie
    KontaktEva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358
    Rok sběru2012