Publications by authors named "Samira Ouardad"
A Catalyst Platform for Unique Cationic (Co)Polymerization in Aqueous Emulsion.
Angew Chem Int Ed Engl
October 2015
Article Synopsis
- Sodium dodecyl benzene sulfonate (DBSNa) surfactants combined with rare earth metal salts create effective Lewis acid surfactant combined catalysts (LASCs).
- These LASCs enable efficient cationic polymerization of important industrial monomers in direct emulsion, requiring lower temperatures and minimal energy input.
- The method allows for the easy production of high-molar-mass homopolymers and various copolymers in a straightforward one-pot reaction without extensive processing time.
During analysis of pure isoprene by gas chromatography/mass spectrometry (GC-MS) using a programmed temperature vaporization (PTV) inlet, the presence of several isoprene dimers was detected in the total ion chromatograms (TICs). This study intends to determine the part of the instrument where dimerization occurs and the relative importance of the dimer amounts under different experimental conditions. The reference thermal dimerization of isoprene gives four six-membered cyclic dimers and two eight-membered ones.
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