Original Article:
Synthesis of oligosiloxanes with 3-aminopropyl groups and their testing as surfactants in the preparation of polymer microspheres
I. A. Gritskova, et al.
Russian Chemical Bulletin, 2018, 67, 1908-1914.
10.1007/s11172-018-2306-1
Today, monodisperse polymer particles are commercially available as calibration standards for flow cytometers, particle and hematology analyzers, electrochemical potentiometers, and templates for the preparation of porous materials. They are also used in turbidimetric and turbidimetric assays, immunoassays, etc. The use of silicone oligomers as surfactants for the synthesis of monodisperse polymer particles is an interesting attempt.
In this work, polydimethyl-co-methyl(3-aminopropyl)siloxanes (PDMS-MAPS) differing in the content of amino groups and molecular weight were synthesized by hydrosilylation of oligodimethyl-co-methylhydrоsiloxane with N-(trimethylsilyl)allylamine (TMSAA, Allylaminotrimethylsilane). In addition, the heterogeneous polymerization of styrene in the presence of the prepared PDMS-MAPS as polymer dispersion stabilizers was also investigated. The results show that oligosiloxane has high surface activity and can effectively reduce the interfacial tension in toluene-water interfacial surfactant solution. Aggregation-stable polystyrene suspensions with particle diameters of 0.5 and 0.8 μm were obtained in the presence of synthetic oligomers.
Chemicals Related in the Paper:
| Catalog Number | Product Name | Structure | CAS Number | Price |
|---|---|---|---|---|
| ACM10519978 | Allylaminotrimethylsilane |  |
10519-97-8 | Price |
