Polyimide-Silica Gel Hybrids Containing Metal Salts: Preparation via the Sol-Gel Reaction

Synthesis and cryogenic properties of polyimide–silica hybrid films by sol–gel process

“…This procedure has also been utilized for the preparation of polyimide-silica hybrid materials [4][5][6]. So far remarkable progress has been made in synthesis of polyimide/silica composites, and it has been displayed that the mechanical and thermal properties of PI films at room temperature can be effectively enhanced by incorporation of silica particles [7][8][9][10][11][12][13].…”

Preparation of zwitterionic hybrid polymer and its application for the removal of heavy metal ions from water

“…As a result, polyimide chains cannot be fabricated in the resulting product (steps 2 and 3); i.e. -CO-NH-chains cannot be created via cyclodehydration of tertiary amine and carboxylic groups in the polymer backbone [17][18][19], which can be confirmed by FT-IR spectra (cf. Fig.…”

Materials, preparation, and characterization of PVA/MMT nanocomposite hydrogels: A review

“…(a) Intercalated nanocomposites, in which, regardless of the polymer/OMLS ratio and a repeat distance of a few nanometers, polymer chains attach to the silicate structure in a crystallographically regular fashion, and (b) exfoliated nanocomposites, where, according to OMLS loading, the individual silicate layers are separated in the polymer matrix by average distances. [106][107][108][109][110][111][112][113][114][123][124][125][126] In general, there are two procedures for the intercalation of polymer chains into silicate galleries: putting monomers in silicate galleries and then performing polymerization [94][95][96] or direct placement of polymer chains into the silicate galleries through melting [79] or solution [80].…”