Synthesis and Characterization of nanocomposites based on copolymers of POSS-ONDI macromonomer and TFONDI: Effect of POSS on thermal, microstructure and morphological properties

摘要

Polyhedral oligomeric silsesquioxanes (POSS) possessing 7-oxanorbornene-5, 6-dicarboximide (POSS-ONDI) functionalized macromers are synthesised and well characterized using FT-IR, ~1H, ~(13)C and ~(29)Si-NMR spectroscopic techniques. The homopolymer of [N-3(trifluoromethyl)phenyl-7-oxanorbornene-5,6-dicarboximide] (TFONDI) and a series of linear copolymers between [N-(POSS)-7-oxanorbornene-5, 6-dicarboximide] POSS-ONDI and TFONDI are prepared through ring opening metathesis polymerisation (ROMP) using Grubbs catalyst. All the polymers are characterized using FT-IR, ~1H-NMR, TGA, DSC, AFM, TEM, XRD and GPC techniques.