Cyclodextrin-Complexed RAFT Agents for the Ambient Temperature Aqueous Living/Controlled Radical Polymerization of Acrylamido Monomers
作者:Bernhard V. K. J. Schmidt、Martin Hetzer、Helmut Ritter、Christopher Barner-Kowollik
DOI:10.1021/ma2011969
日期:2011.9.27
(3-((4-(tert-butyl)phenyl)amino)-3-oxopropyl)carbonotrithioate, were synthesized and employed in aqueous RAFT polymerizations. The presented technique allows for the facile preparation of hydrophilic polymers with hydrophobic end groups in aqueous environments. The living/controlled radical polymerization afforded high molecular masses (7500 ≤ Mn ≤ 116 000 g mol–1 for poly(DMAAm), 2500 ≤ Mn ≤ 150 000
的所述第一水性可逆加成-断裂转移(RAFT)聚合N,N- -甲基丙烯酰胺(的DMAAm),N,N- -二乙基(DEAAm),和N-利用环糊精和疏水链转移剂的主体/客体复合物异丙基丙烯酰胺(NIPAAM)描述了在25°C下的(CTA)。三种新颖的客体官能化CTAs,即4-(叔丁基)苯基2-((((乙硫基)碳硫基)硫基)-2-甲基丙酸酯,双(4-叔丁基)苄基碳三硫代酸酯和苄基(3-(( 4-(叔合成了丁基丁基苯基)氨基)-3-氧丙基丙基三硫代碳酸酯,并将其用于水性RAFT聚合中。提出的技术允许在水性环境中容易地制备具有疏水端基的亲水性聚合物。活/受控的自由基聚合得到的高分子质量(7500≤中号Ñ ≤116000克摩尔-1为聚(的DMAAm),2500≤中号Ñ ≤150000克摩尔-1为聚(DEAAm),和4000≤中号Ñ ≤50 000 g摩尔–1对于具有低PDI的poly(NIPAAm)(对于poly(DMAAm)为1