Aqueous solution properties of pH-responsive AB diblock acrylamido copolymers synthesized via aqueous RAFT

被引：117
|
作者：
Sumerlin, BS
Lowe, AB
Thomas, DB
McCormick, CL
机构：
[1] Univ So Mississippi, Dept Polymer Sci, Hattiesburg, MS 39406 USA
[2] Univ So Mississippi, Dept Biochem & Chem, Hattiesburg, MS 39406 USA
来源：
MACROMOLECULES | 2003年 / 36卷 / 16期
关键词：
D O I：
10.1021/ma034088n
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
AB diblock and AB statistical copolymers of sodium 2-acrylamido-2-methylpropanesulfonate (AMPS) and sodium 3-acrylamido-3-methylbutanoate (AMBA) have been prepared via aqueous reversible addition-fragmentation chain transfer (RAFT) polymerization. Such AB diblock copolymers were tailored to undergo reversible pH-induced self-assembly given the tunable hydrophilic/hydrophobic nature of the AMBA species. Using a combination of H-1 NMR spectroscopy, dynamic light scattering, and fluorescence spectroscopy, it has been shown that these AB diblock copolymers exhibit reversible micellization below pH 5.5 with the aggregate sizes dependent on the block copolymer composition.
引用
收藏
页码：5982 / 5987
页数：6
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