Cellulose-Based Graft Copolymers with Controlled Architecture Prepared in a Homogeneous Phase

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F11%3A10100305" target="_blank" >RIV/00216208:11310/11:10100305 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389013:_____/11:00364282

Výsledek na webu

<a href="http://dx.doi.org/10.1002/pola.24876" target="_blank" >http://dx.doi.org/10.1002/pola.24876</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/pola.24876" target="_blank" >10.1002/pola.24876</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Cellulose-Based Graft Copolymers with Controlled Architecture Prepared in a Homogeneous Phase

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Cellulose-Based Graft Copolymers with Controlled Architecture Prepared in a Homogeneous Phase

Popis výsledku anglicky

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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Polymer Science, Part A: Polymer Chemistry

ISSN

0887-624X

e-ISSN

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Svazek periodika

49

Číslo periodika v rámci svazku

20

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

15

Strana od-do

4353-4367

Kód UT WoS článku

000295714800007

EID výsledku v databázi Scopus

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