Water-soluble starlike poly(acrylic acid) graft polymer: preparation and application as templates for silver nanoclusters

Water-soluble starlike polymers containing concentrated carboxyl groups were conveniently synthesized via the combination of “click” chemistry and atom transfer radical polymerization. The starlike polymer was composed of a shorter polyacrylate main chain and longer poly(acrylic acid) side chains. A...

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Bibliographic Details
Published in:Polymer bulletin (Berlin, Germany) Germany), 2012-05, Vol.68 (9), p.2229-2242
Main Authors: Li, Huiqiang, Li, Zhanxian, Wu, Linzhi, Liu, Fang, Zhou, Jie, Luan, Miao, Yu, Mingming, Wei, Liuhe
Format: Article
Language:English
Subjects:
Absorption spectra
Acids
Acrylic resins
Alcohol
Alkynes
Applied sciences
Bromine
Characterization and Evaluation of Materials
Chemical synthesis
Chemistry
Chemistry and Materials Science
Complex Fluids and Microfluidics
Esterification
Exact sciences and technology
Gel chromatography
Hydrogels
Molecular weight
Nanoclusters
Nanoparticles
NMR
Nuclear magnetic resonance
Optical properties
Organic Chemistry
Original Paper
Physical Chemistry
Physicochemistry of polymers
Polyacrylic acid
Polymer industry, paints, wood
Polymer Sciences
Polymerization
Polymers
Reagents
Sodium azides
Soft and Granular Matter
Substitution reactions
Technology of polymers
Water chemistry
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Summary:Water-soluble starlike polymers containing concentrated carboxyl groups were conveniently synthesized via the combination of “click” chemistry and atom transfer radical polymerization. The starlike polymer was composed of a shorter polyacrylate main chain and longer poly(acrylic acid) side chains. Alkyne and azide groups were introduced to the structure units of the main chain by esterification and the chain end of the side chain by substitution reaction of NaN 3 to bromine, respectively. By click chemistry between alkyne and azide group, well-defined starlike polymers were obtained. FT-IR, gel permeation chromatography, and 1 H NMR were used to characterize the resulting polymers. Aggregation behavior demonstrated by transmission electron microscopy was observed when the starlike polymers were dispersed in water at pH 7.0–7.5. Using the starlike polymers as templates, water-soluble silver nanoclusters mainly consisting of Ag 2 supported by the generated nanoparticles and carboxyl groups were successfully synthesized. Also, their optical properties and morphology were characterized by UV–vis absorption spectra and TEM.
ISSN:0170-0839
1436-2449
DOI:10.1007/s00289-011-0677-7