- Linear polysiloxanes from dichlorosilane
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Polysiloxanes of type RR′R″SiO(SiH2O)nSiRR′R″ (R, R′, R″ = Me, Me, Me; Me, H, H; Et, Et, Et; Me, Me, H) have been prepared by three different methods: (1) reactions of ClSiH2O(SiH2O)nSiH2Cl with CH3MgBr, Me3SiOH, and Et3SiOH; (2) H2SO4-catalyzed equilibration of cyclic [H2SiO]n oligomers with Me3SiOSiMe3; (3) cohydrolysis of H2SiCl2 with Me3SiCl and Me2HSiCl using NaH2PO4/Na2HPO4-buffered media. Lower species, Me2RSiO(SiH2O)nSiMe2R (n = 1-3), were isolated and characterized (R = Me, H).
- Seyferth, Dietmar,Prud'homme, Christian C.
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p. 4412 - 4417
(2008/10/08)
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