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- W2054828244 abstract "Cross-linked sterically stabilized latexes of approximately 250 nm diameter were synthesized by emulsion polymerization of 2-(diethylamino)ethyl methacrylate using a bifunctional oligo(propylene oxide)-based diacrylate cross-linker and a poly(ethylene oxide)-based macromonomer as the stabilizer at pH 9. These particles exhibit reversible swelling properties in water by adjusting the solution pH. At low pH, they exist as swollen microgels as a result of protonation of the tertiary amine units. Deswelling occurs above pH 7 [the effective pK(a) of poly(2-(diethylamino)ethyl methacrylate)], leading to the formation of the original compact latex particles. The swollen microgels can be used as nanoreactors: efficient impregnation with Pt nanoparticles can be achieved by incorporating precursor platinum compounds, followed by metal reduction. Dynamic light scattering was used to compare two methods of Pt nanoparticle impregnation with respect to the size and stability of the final Pt-loaded microgel particles. In the first method, the H2PtCl6 precursor was added to hydrophobic latex particles at high pH, followed by metal reduction. In the second method, H2PtCl6 was added to hydrophilic swollen microgel particles at low pH, and then this metal salt was reduced in situ using NaBH4 and the pH was raised by the addition of base. Both the Pt salt-loaded (metalated) microgels and the final Pt nanoparticle-loaded microgels had well-defined structures that were independent of the synthesis route. Polymer-metal interactions were investigated by UV-visible absorption spectroscopy, which confirmed that the Pt salt was completely reduced to zero-valent Pt. Transmission electron microscopy and X-ray diffraction studies verified the formation of nanometer-sized Pt nanoparticles within these microgels, which can be used as recoverable colloidal catalyst supports for various organic reactions." @default.
- W2054828244 created "2016-06-24" @default.
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- W2054828244 creator A5027499590 @default.
- W2054828244 creator A5049542813 @default.
- W2054828244 creator A5069717843 @default.
- W2054828244 date "2007-04-05" @default.
- W2054828244 modified "2023-10-09" @default.
- W2054828244 title "Metal Nanocrystals Incorporated within pH-Responsive Microgel Particles" @default.
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- W2054828244 cites W1967022778 @default.
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- W2054828244 cites W1968044889 @default.
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- W2054828244 cites W1970798374 @default.
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- W2054828244 cites W1979251941 @default.
- W2054828244 cites W1980818493 @default.
- W2054828244 cites W1983263935 @default.
- W2054828244 cites W1984738795 @default.
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- W2054828244 cites W1987576929 @default.
- W2054828244 cites W1988217789 @default.
- W2054828244 cites W1988348032 @default.
- W2054828244 cites W1994033579 @default.
- W2054828244 cites W1994520755 @default.
- W2054828244 cites W1994793050 @default.
- W2054828244 cites W1995136041 @default.
- W2054828244 cites W1996177944 @default.
- W2054828244 cites W1996959368 @default.
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- W2054828244 cites W2002183526 @default.
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- W2054828244 cites W2008035959 @default.
- W2054828244 cites W2010980858 @default.
- W2054828244 cites W2013596690 @default.
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- W2054828244 cites W2021626030 @default.
- W2054828244 cites W2025833688 @default.
- W2054828244 cites W2027584131 @default.
- W2054828244 cites W2037200226 @default.
- W2054828244 cites W2037719637 @default.
- W2054828244 cites W2041560791 @default.
- W2054828244 cites W2041977722 @default.
- W2054828244 cites W2042621968 @default.
- W2054828244 cites W2046873824 @default.
- W2054828244 cites W2047275620 @default.
- W2054828244 cites W2050123580 @default.
- W2054828244 cites W2050432198 @default.
- W2054828244 cites W2055807047 @default.
- W2054828244 cites W2058104679 @default.
- W2054828244 cites W2060479838 @default.
- W2054828244 cites W2062726032 @default.
- W2054828244 cites W2063180627 @default.
- W2054828244 cites W2063828226 @default.
- W2054828244 cites W2064747071 @default.
- W2054828244 cites W2064892351 @default.
- W2054828244 cites W2068820546 @default.
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- W2054828244 cites W2077592582 @default.
- W2054828244 cites W2080420701 @default.
- W2054828244 cites W2081689349 @default.
- W2054828244 cites W2083787055 @default.
- W2054828244 cites W2083861750 @default.
- W2054828244 cites W2087855628 @default.
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- W2054828244 cites W2107500788 @default.
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- W2054828244 cites W2153833142 @default.
- W2054828244 cites W2162286404 @default.
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- W2054828244 doi "https://doi.org/10.1021/la063359v" @default.
- W2054828244 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/17408293" @default.
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