Preparation of polyHIPE/clay composites by using a reactive intercalant

Abstract

Porous polymer composites have been synthesized by polymerizing the continuous phase of styrene/divinylbenzene high internal phase emulsions in the presence of organophilic montmorillonite clay having a novel oil-based intercalant which is a reactive methacryl derivative of quaternized methyl oleate. The morphological features, thermal stability and mechanical properties, namely compression modulus and crush strength of the resulting composites have been investigated as a function of degree of nanoclay loading. All the composites reinforced with the clay were found to have improved thermal and mechanical properties as well as desired porous and interconnected structural morphology, as compared with the bare polyHIPE matrix.

Adsorptive polyHIPE composites based on biosorbent immobilized nanoclay: Effects of immobilization techniques

“…Until today, many research groups reported polyHIPEs prepared from Pickering HIPEs stabilized by various functionalized solid particles. Some examples are titania , silica , hydroxyapatite nanoparticles , magnetite nanoparticles , water‐dispersible copolymer particles , lignin particles , serum albumin protein nanoparticles , colloidal polymeric particles and clay .…”

Robust macroporous polymers: Using polyurethane diacrylate as property defining crosslinker

“…Using silica particles as functional reinforcement allows to enhance their mechanical properties [11,15,19e21]. Incorporating other particles, such as carbon nanotubes [22,23], titania [24], nanoclay [25] and magnetic particles [26,27], have also been explored. Emulsion templated poly(styrene-co-divinylbenzene)/polyurethane interpenetrated polymer networks were synthesised by L epine et al [28].…”

Properties and applications of nanoclay reinforced open‐porous polymer composites

“…PolyHIPEs were first prepared and patented by the Unilever researchers, Barby and Haq in 1985 from water‐in‐oil (w/o) HIPEs of styrene (St) and divinylbenzene (DVB) . Then, scientists applied several approaches to enhance mechanical properties of polyHIPEs such as by using different monomers that give flexibility and durability to the structure, increasing the crosslinking ratio, adding a suitable reinforcer to continuous phase and increasing the density of material . In this respect, silica nanoparticles, titania nanoparticles, and carbon nanotubes have been used to reinforce different polyHIPE matrices.…”

“…More recently, Çira et al . prepared polyHIPE/clay composites by using a reactive intercalant and achieved to improve thermal and mechanical properties of the materials …”

“…Although many scientists have investigated the influence of several reinforces, particularly nanoclay particles on the polyHIPE morphology and mechanical properties, researchers have not been focused on the morphological properties, mechanical strength, and thermal stability at the same time. Moreover, most of the studies subjecting the use of nanoclay particles were based on brittle polyHIPE structures which were usually obtained by the polymerization of styrene and/or DVB …”