About: Controlled grafting of cellulose esters using SET-LRP process

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We present the application of SET-LRP process to a grafting of cellulose diacetate (CDA), and cellulose acetate butyrate (CAB). The macroinitiators with various functionality densities have been prepared by acylation of the backbones with 2-bromoisobutyryl (BrIB) or dichloroacetyl (DCA) groups. MMA was polymerized using DCA-functionalized macroinitiators in the presence of PMDETA as a ligand. At 30 °C, the reaction is slow, whereas the higher temperature (60 °C) speeds up the polymerization so that MMA conversion is 30% after 5 h. For BuA and t-BuA grafting, BrIB-functionalized macroinitiators are more convenient in a combination with Cu(0) and Me6TREN ligand.. Kinetic studies show “living character of both the graftings. Important advantages of SET-LRP, compared with classic ATRP, are (i) higher polymerization rate, (ii) lower extent of recombination of the growing grafts and (iii) negligible coloration of the products with catalytic residua. We present the application of SET-LRP process to a grafting of cellulose diacetate (CDA), and cellulose acetate butyrate (CAB). The macroinitiators with various functionality densities have been prepared by acylation of the backbones with 2-bromoisobutyryl (BrIB) or dichloroacetyl (DCA) groups. MMA was polymerized using DCA-functionalized macroinitiators in the presence of PMDETA as a ligand. At 30 °C, the reaction is slow, whereas the higher temperature (60 °C) speeds up the polymerization so that MMA conversion is 30% after 5 h. For BuA and t-BuA grafting, BrIB-functionalized macroinitiators are more convenient in a combination with Cu(0) and Me6TREN ligand.. Kinetic studies show “living character of both the graftings. Important advantages of SET-LRP, compared with classic ATRP, are (i) higher polymerization rate, (ii) lower extent of recombination of the growing grafts and (iii) negligible coloration of the products with catalytic residua. (en)
Title	Controlled grafting of cellulose esters using SET-LRP process Controlled grafting of cellulose esters using SET-LRP process (en)
skos:prefLabel	Controlled grafting of cellulose esters using SET-LRP process Controlled grafting of cellulose esters using SET-LRP process (en)
skos:notation	RIV/61389013:_____/11:00350691!RIV11-GA0-61389013
http://linked.open...avai/predkladatel	Ústav makromolekulární chemie AV ČR, v. v. i.
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA106/09/1348), Z(AV0Z40500505)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Vlček, Petr Kříž, Jaroslav Raus, Vladimír Janata, Miroslav Sikora, Antonín
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav makromolekulární chemie AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	191939
http://linked.open...ai/riv/idVysledku	RIV/61389013:_____/11:00350691
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	cellulose esters; copolymerization; graft copolymers (en)
http://linked.open.../riv/klicoveSlovo	cellulose esters copolymerization graft copolymers
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[B3831BED8C90]
http://linked.open...i/riv/nazevZdroje	Journal of Polymer Science. Part A - Polymer Chemistry
http://linked.open...in/vavai/riv/obor	JI
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Synthesis and mechanical properties of nanocomposites with tailored organoclays
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	49
http://linked.open...iv/tvurceVysledku	Janata, Miroslav Kříž, Jaroslav Raus, Vladimír Sikora, Antonín Vlček, Petr
http://linked.open...ain/vavai/riv/wos	000286344300018
http://linked.open...n/vavai/riv/zamer	Progresivní makromolekulární materiály a supramolekulární systémy: syntéza a studium vlastností, jevů a možností využití pro speciální aplikace a moderní technologie
issn	0887-624X
number of pages	10 (xsd:int)
is http://linked.open...avai/riv/vysledek of	Controlled grafting of cellulose esters using SET-LRP process Controlled grafting of cellulose esters using SET-LRP process

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