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We have prepared film-forming solutions for the growth of dense and porous thin organoalkylenesiloxane (OAS) films based on copolymers of methyltrimethoxysilane and 1,2-bis(trimethoxysilyl)ethane (BTMSE) by a sol–gel process. The chemical composition and microstructure of the OAS films have been studied by IR spectroscopy and spectral ellipsometry in relation to the mole fraction of BTMSE and the...
Przedstawiono przegląd literatury (90 pozycji) dotyczący metod otrzymywania polifenylosilseskwioksanów (PPSQ) i polimetylosilseskwioksanów (PMSQ) o strukturze drabinkowej [wzór (I)]. Omówiono też metody otrzymywania mostkowanych połisilseskwioksanów [wzory (III) i (IV)]. Przytoczono liczne argumenty świadczące o drabinkowej strukturze połisilseskwioksanów [wzory (V) i (VI), tabela 1] oraz scharakteryzowano...
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