Synthesis and Characterization of a Novel Hyperbranched Poly(Diethynylbenzene-Silane)
2012 ◽
Vol 560-561
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pp. 174-178
Hyperbranched poly(diethynylbenzene-silane) (hb-PDEBS) was synthesized through polycondensation reaction of diethynylbenzene Grignard reagent (A2) and trichlorosilane (B3), and its structure was characterized by FT-IR, 1H-NMR, GPC and Elemental Analysis. The degree of branching of hb-PDEBS was defined by 29Si-NMR and calculated to be about 0.68. The curing behavior of hb-PDEBS was investigated by DSC. Thermal stability of cured hb-PDEBS was examined by TGA, and its residue at 1000°C under nitrogen was 80.6%. Hb-PDEBS displayed a strong absorption due to π-π* transition and exhibited the most intensity structured emission with a maximum around 500 nm.
2012 ◽
Vol 217-219
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pp. 551-554
2011 ◽
Vol 282-283
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pp. 116-119
2011 ◽
Vol 197-198
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pp. 606-609
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