Functional polymers supported on porous silica

Peptide recognition via hierarchical imprinting

“…The modification of silica with APS was performed according to the procedure described by Revillon et al for obtaining initiatormodified support materials [14]. A batch of 20 g rehydroxylated silica was suspended in 160 mL dry toluene.…”

Poly(N-isopropylacrylamide)-grafted silica as a support of platinum colloids: Preparation method, characterization, and catalytic properties in hydrogenation

“…However, these systems suffer from serious disadvantage of lack of thermal, mechanical and chemical stability, which cause the collapse of the support itself. On the other hand, porous silica is well known for its thermal and mechanical stability 9 and used for a solid support of several polymers. 10,11 Stable noble metal colloids in aqueous solution can be easily and reproducible prepared in a wide range of sizes by different methods.…”

“…termination of a growing chain on an active group at the surface, copolymerization of an immobilized double bond, and initiation of a polymerization by immobilized initiator. 9 These various anchored compounds are called the active precursors in radical polymerization and all of them can be coupled to the silica surface by solution deposition of functionalized silanes. A two-step preparation route is developed to graft the PNIPAAm to the silica surface.…”

Polymer-supported synthesis

“…to enhance adhesion, to promote printability, to modify electrostatic properties, etc. Increasingly, however, surface modification is being used as a route to introducing chemical reactivity [165][166][167][168]. This approach is closely associated with the exploitation of membranes in reactors, with the prospect of achieving concurrent reaction and separation.…”