Synthesis and viscoelastic behavior of multiarm star polyelectrolytes

被引：34

作者：

Furukawa, T ^{[1
]}

Ishizu, K ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Organ Mat & Macromol, Int Res Ctr Polymer Sci, Meguro Ku, Tokyo 1528552, Japan

来源：

MACROMOLECULES | 2005年 / 38卷 / 07期

关键词：

D O I：

10.1021/ma047777n

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Star-shaped poly(tert-butyl acrylate)s were synthesized by the atom transfer radical polymerization (ATRP) method. Subsequently, star-shaped poly(acrylic acid)s were induced by hydrolysis of tert-butyl units. The structural ordering of these stars was investigated through small-angle X-ray scattering (SAXS) in aqueous solution. Star with f = 30 and f = 97 formed a bee structure above the overlap threshold (C*). The viscoelastic behavior of the stars was also investigated. This system showed the transition from a Maxwellian fluid of a weak liquid ordering to a solid of macrolattice structure with increasing the polymer concentration. This result reflected the stronger interaction among star polyelectrolytes at higher polymer concentration.

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页码：2911 / 2917

页数：7

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