IFISUR   23398
INSTITUTO DE FISICA DEL SUR
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Controlled Synthesis of a,w-telechelic PDMS
Autor/es:
VIVINA, HANAZUMI; DANIEL A. VEGA; MARCELO A., VILLAR; LEONARDO, REDONDO; MARIO D. NINAGO; M. M. SOLEDAD, LENCINA; CAMILA, MULLER; ANDRÉS E. CIOLINO
Lugar:
Cancún-Riviera Maya
Reunión:
Simposio; XV Simposio Latinoamericano de Polímeros; 2016
Resumen:
One of the goals of polymer chemistry is developing new synthetic pathways for the controlled synthesis of polymers with predictable, well-defined structures. Living anionic polymerization provides one of the best methodologies for synthesizing complex macromolecular structures such as block or graft copolymers, stars and functional macromolecules1. Among them, the synthesis of telechelic polymers is of interest because these kind of macromolecules allow synthesizing model polymer networks, whose mechanical and rheological properties provides the key to design tailor-made engineering materials. In this work we report the synthesis of a,wvinyl terminated PDMS (B2V) by employing a novel bifunctional initiator. The synthesis involves high-vacuum anionic polymerization techniques and the sequential addition of specific reagents, starting from commercial diglycidylether terminated poly(dimethylsiloxane) (PDMS-DGE). The final reaction product was characterized by conventional analytical techniques, such as SEC, 1H-NMR and FTIR.