CONTROLLED SYNTHESIS OF α,ω-TELECHELIC PDMS

LENCINA, MS; HANAZUMI, V; REDONDO L; MÜLLER C; VEGA DA; NINAGO MD; CIOLINO A; VILLAR MA

Cancún

Simposio; XV Simposio Latinoamericano de Polímeros, XIII Congreso Iberoamericano de Polímeros: SLAP2016; 2016

SLAP

pathways for the controlled synthesis of polymers with predictable,well-defined structures. Living anionic polymerization provides oneof the best methodologies for synthesizing complexmacromolecular structures such as block or graft copolymers,stars and functional macromolecules1. Among them, the synthesisof telechelic polymers is of interest because these kind ofmacromolecules allow synthesizing model polymer networks,whose mechanical and rheological properties provides the key todesign ?tailor-made? engineering materials. In this work we reportthe synthesis of , vinyl terminated PDMS (B2V) by employinga novel bifunctional initiator. The synthesis involves high-vacuumanionic polymerization techniques and the sequential addition ofspecific reagents, starting from commercial diglycidyletherterminated poly(dimethylsiloxane) (PDMS-DGE). The finalreaction product was characterized by conventional analyticaltechniques, such as SEC, 1H-NMR and FTIR.