Bulk and Solution Properties of Model PS-b-PDMS Copolymers

MARIO NINAGO; ANGEL SATTI; DANIEL VEGA; ENRIQUE VALLÉS; MARCELO VILLAR; ANDRÉS CIOLINO

Houffalize

Encuentro; Annual Meeting of the Belgian Polymer Group (BPG 2011); 2011

Belgian Polymer Group

True model linear poly(styrene-b-dimethylsiloxane) PS-b-PDMS copolymers were synthesized by using sequential addition of monomers and anionic polymerization (high-vacuum techniques). The model diblock copolymers obtained were analyzed by using different techniques, such as size-exclusion chromatography, NMR, Fourier transform infrared spectroscopy, small angle X-rays scattering (SAXS), and wide angle X-rays scattering (WAXS). The PS-b-PDMS copolymers obtained showed narrow molar mass distribution and variable PDMS content, ranging from 2 up to 55 wt %.