INVESTIGADORES
VILLAR Marcelo Armando
congresos y reuniones científicas
Título:
Thermal and Morphological Characterization of Model Triblock Copolymers of Poly(butadiene 1,4 with Poly(dimethylsiloxane)
Autor/es:
A.E. CIOLINO; N. HADJICHRISTIDIS; E.M. VALLÉS; V. CASTELLETTO; I.W. HAMLEY; M.A VILLAR
Lugar:
Rio de Janeiro, Brasil
Reunión:
Simposio; World Polymer Congress, 41st International Symposium on Macromolecules, MACRO 2006; 2006
Institución organizadora:
Asociación Brasileña de Polímeros (ABPol)
Resumen:
The thermal and morphological properties of model triblock copolymers of butadiene 1,4 with poly(dimethylsiloxane) (PB-b-PDMS-b-PB) were analyzed by small angle X rays scattering (SAXS), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). These model triblock copolymers were synthesized using high vacuum anionic polymerization techniques combining sequential addition of monomers and silane-coupling chemistry. According to the experimental results, the PB-b-PDMS-b-PB copolymers exhibit spherical and lamellar morphology, whereas their thermal stability depends on the PDMS content.
