INVESTIGADORES
CIOLINO Andres Eduardo
artículos
Título:
Synthesis and physicochemical characterization of a well-defined poly(butadiene 1,3)-block-poly(dimethylsiloxane) copolymer
Autor/es:
ANDRÉS E. CIOLINO; LEOPOLDO R. GÓMEZ; DANIEL A. VEGA; MARCELO A. VILLAR; ENRIQUE M. VALLÉS
Revista:
POLYMER
Editorial:
Elsevier
Referencias:
Lugar: Oxford, Reino Unido; Año: 2008 vol. 29 p. 5191 - 5194
ISSN:
0032-3861
Resumen:
Model diblock copolymer of poly(butadiene-1,3) and poly(dimethylsiloxane) (PB-b-PDMS). This model PB-b-PDMS copolymer was synthesized by the sequential anionic polymerization (high vacuum techniques) of butadiene 1,3 (B) and hexamethylciclotrisiloxane (D3), and subsequently characterized by nuclear magnetic resonance, Small Angle X-rays scattering (SAXS) and rheology. SAXS combined with rheological experiments show that the order-order and order-disorder transitions are thermoreversible. This fact indicates that the copolymer has sufficient mobility at the timescale and at the temperatures of interest to reach their equilibrium morphologies.
