有机-无机杂化

Abstract\n\t\t\t\t\n\t\t\t\t\tPolyimide-polydimethylsiloxane (PI-PDMS) hybrids were synthesized by combining an in situ sol–gel reaction of diethoxydimethylsilane (DEDMS) and imidization of poly(amide acid) (PAA) prepared from pyromellitic dianhydride (PMDA) and 4,4′-oxydianiline (ODA). Transparent hybrid films were obtained with up to 3\n\t\t\t\t\t\twt.% PDMS content corresponding to the relatively small domain size of PDMS as confirmed by scanning electron microscopy.

Abstract\n\t\t\t\t\n\t\t\t\t\tA series of organic–inorganic hybrid consisting of polyimide (PI) prepared from pyromellitic dianhydride (PMDA) and 4,4′-oxydianiline (ODA), organically modified montmorillonite (OMMT) and polydimethylsiloxane (PDMS) were successfully prepared by in situ sol–gel process. OMMT was prepared by surface treatment of montmorillonite (MMT) with hexadecyltrimethylammonium bromide. X-ray diffraction (XRD) analysis showed that the OMMT layers were exfoliated into the polymer matrix at 2% of OMMT content.