NoteNonaqueous silica dispersions stabilized by terminally-grafted polystyrene chains
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Cited by (65)
Mesoporous silica nanoparticles for drug combination delivery in cancer therapy: Background, current insights, and future perspectives
2021, Nanocarriers for the Delivery of Combination DrugsCationisation of silicon wafers to assess the development of a solid sorbent for the removal of anionic contaminants in paper machine white water
2012, Chemical Engineering JournalCitation Excerpt :These particles are used by many research groups as model system for studies on rheology [25], light scattering [26], catalysis [27], as stabilizers [28] and in chemical mechanical polishing [29]. Modification of the hydrophilic surface is very often realized by polymer adsorption [30], graft polymerization [31] and silylation with silane coupling agents [32]. For the latter case, atom transfer radical polymerization (ATRP) was proposed for the grafting of a cationic polymer (MeDMA) on silicon wafer via ATRP to increase the number of sites cationic on the surface.
Preparation of polymer core-shell particles supporting gold nanoparticles
2011, Colloids and Surfaces A: Physicochemical and Engineering AspectsCitation Excerpt :As described in their article, in order to take advantage of colloidal particles as a well-defined nanoreactor to synthesize gold NPs, cationic polyelectrolyte chains must be grafted densely on particles so that the gold NPs must be firmly immobilized in this nanoreactor to prevent the exchange of AuCl4− into the continuous phase. Known methods for grafting polymer chains to particle surfaces entail chemisorption of a reactive polymer end group to the surface [53–55], grafting a polymer chain through a monomer covalently linked to the surface [56–59], or grafting a polymer chain from a surface modified with polymerization initiators [60–62]. Among them, surface-initiated graft polymerization by atom transfer radical polymerization (ATRP) has been energetically investigated, because this polymerization technique affords control over the molecular weight, molecular weight distribution, and structure of the resulting polymer.
Synthesis of poly(methyl methacrylate)-silica nanocomposites using methacrylate-functionalized silica nanoparticles and RAFT polymerization
2008, PolymerCitation Excerpt :The conditions for RAFT polymerization are similar to that of a conventional radical polymerization except for the addition of a RAFT agent [28–32]. Previous work has used the RAFT polymerization technique to graft polymers to silica particles either by using “grafting to” [33,34] or “grafting from” method [35–38]. Alternatively, only few papers in the literature have used the “grafting through” method [39–43] to graft polymer on the silica and none of these papers used RAFT polymerization.
Synthesis of well-defined, polymer-grafted silica nanoparticles via reverse ATRP
2005, European Polymer JournalTethered polymer chains: Surface chemistry and their impact on colloidal and surface properties
2003, Advances in Colloid and Interface ScienceCitation Excerpt :Deliberate variation of the grafting density was not attempted. In order to improve control over the grafting density, Devaux et al. used a ‘reactive’ Langmuir–Blodgett method to deposit the initiator on silica; this method allowed them to go from typically ‘dilute’ brushes to very dense ones while keeping the chain length fixed [57]. Clearly, living radical polymerisation has a lot of possibilities for controlled brush preparation.