Synthesis of conducting polysiloxane-polypyrrole graft copolymers


Gunaydin O., Toppare L. , Yagci Y., Harabagiu V., Pintela M., Simionescu B.

POLYMER BULLETIN, cilt.47, ss.501-508, 2002 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 47 Konu: 6
  • Basım Tarihi: 2002
  • Doi Numarası: 10.1007/s002890200014
  • Dergi Adı: POLYMER BULLETIN
  • Sayfa Sayıları: ss.501-508

Özet

Polysiloxane-polypyrrole graft copolymers have been synthesized by a series of chemical reactions and subsequent electropolymerization. First, the hydrosilation of 4-vinyl aniline by dimethyl-methylhydrosiloxane copolymer gave the corresponding aminophenyl functional polydimethylsiloxane (PDMS-NH2). The side chain pyrrole functionalized. polysiloxanes were then prepared by the reaction of PDMS-NH2 with glycidylpyrrole. Finally, the synthesis of graft copolymers of polysiloxane and pyrrole has been achieved electrochemically by using two different electrolytes, p-toluene sulfonic acid (PTSA) and tetrabutylammonium tetrafluoroborate (TBAFB). Characterization of these graft copolymers were performed by a combination of techniques consisting of scanning electron microscopy (SEM), thermal gravimetry (TGA), differential scanning calorimetry (DSC) analyses and FT-IR studies. The conductivities were measured by four-probe technique.