Synthesis and Characterization of a Novel Hyperbranched Poly(Diethynylbenzene-Silane)

Abstract:

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.

• Periodical: Advanced Materials Research (Volumes 560-561)
• Pages: 174-178
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.560-561.174
• Online since: August 2012
• Authors: Yan Zou, Hui Min Qi, Mei Ling Xu, Fa Rong Huang, Lei Du
• Keywords: Hyperbranched, Optical Property, Si-Containing Polymer, Thermal Stability

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