Nanophase separated amphiphilic microbeads

Gabriela Savin; Nico Bruns; Yi Thomann; Joerg C. Tiller

doi:10.1021/ma0509715

Nanophase separated amphiphilic microbeads

Gabriela Savin, Nico Bruns, Yi Thomann, Joerg C. Tiller

Pure And Applied Chemistry

Research output: Contribution to journal › Article › peer-review

54 Citations (Scopus)

Abstract

The synthesis of nonporous nanophase separated amphiphilic microbeads was investigated. The synthesis was performed with a mixture of α,ω- methacrylate-terminated poly-dimethylsiloxane (MA-PDMS-MA), trimethylsilylated 2-hydroxyethylacrylate (TMSOEA) and the photoinitiator Irgacure 651 emulsified in a surfactant solution in 100 mM phosphate buffer, pH 7.0. Attenuated total reflection (ATR) and fourier transform infrared (FTIR) was used to investigate the chemical composition of the particles near their surface. The amphiphilic microbeads showed the phase separation in bulk as well as on the surface and was found to be effective as solid-phase transfer of a α-chymotrypsin- catalyzed biotransformation in octane.

Original language	English
Pages (from-to)	7536-7539
Number of pages	4
Journal	Macromolecules
Volume	38
Issue number	18
DOIs	https://doi.org/10.1021/ma0509715
Publication status	Published - 6 Sep 2005

Keywords

amphiphilic microbeads

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10.1021/ma0509715

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AU - Savin, Gabriela

AU - Bruns, Nico

AU - Thomann, Yi

AU - Tiller, Joerg C.

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AB - The synthesis of nonporous nanophase separated amphiphilic microbeads was investigated. The synthesis was performed with a mixture of α,ω- methacrylate-terminated poly-dimethylsiloxane (MA-PDMS-MA), trimethylsilylated 2-hydroxyethylacrylate (TMSOEA) and the photoinitiator Irgacure 651 emulsified in a surfactant solution in 100 mM phosphate buffer, pH 7.0. Attenuated total reflection (ATR) and fourier transform infrared (FTIR) was used to investigate the chemical composition of the particles near their surface. The amphiphilic microbeads showed the phase separation in bulk as well as on the surface and was found to be effective as solid-phase transfer of a α-chymotrypsin- catalyzed biotransformation in octane.

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Nanophase separated amphiphilic microbeads

Abstract

Keywords

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