Controllable self-assembly of CdTe/poly(N-isopropylacrylamide acrylic acid) microgels in response to pH stimuli

被引：61

作者：

Li, J ^{[1
]}

Liu, B ^{[1
]}

Li, JH ^{[1
]}

机构：

[1] Tsing Hua Univ, Dept Chem, Key Lab Bioorgan Phosphorus Chem & Chem Biol, Beijing 100084, Peoples R China

来源：

LANGMUIR | 2006年 / 22卷 / 02期

关键词：

D O I：

10.1021/la052519k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The self-assembly of hybrid CdTe/poly(N-isopropylacrylamide-acrylic acid) [poly(NIPAM-AAc)] microgels was tunable in response to pH stimuli. The pH-dependent swelling behavior of the polymer microgels played an important role in the self-assembly processes. At pH 3.73, the fractal and dendritic patterns of CdTe/poly(NIPAM-AAc) were fabricated on a large scale, in which the dipole moment of CdTe provided a significant driving force. At pH 11.28, the microgels aggregated and amalgamated to form a porous film and phase separation occurred between the CdTe nanocrystals and poly(NIPAM-AAc). The combination of the physical and chemical properties of inorganic CdTe nanocrystals with those of organic smart polymers provides a new opportunity for controllable self-assembly.

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收藏

页码：528 / 531

页数：4

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