Synthesis of β‐myrcene‐based macroporous nanocomposite foams: Altering the morphological and mechanical properties by using organo‐modified nanoclay

Abstract

Organo‐modified nanoclay incorporated high internal phase emulsions (HIPEs) were successfully used for the preparation of macroporous nanocomposite foams. Due to the aim of obtaining mechanically improved foams, HIPEs were prepared by using a monomer mixture composed of β‐myrcene and ethylene glycol dimethacrylate. Accordingly, two groups of macroporous nanocomposite foams were synthesized depending on the nanoclay type. The morphological analysis demonstrated that the pore openness of the resulting nanocomposites were significantly improved due to the decrease in the average cavity size and increase in the interconnected pore size. In terms of mechanical properties, it was found that filling 1 wt% of nanoclay which is surface modified by hydrogenated tallow lead to a 33% of increment in the compression modulus, as compared to the neat foam. However, loading 5 wt% of nanoclay having octadecylamine and aminopropyltriethoxysilane surface groups caused only 11% of increment in the compression modulus, as compared to the neat foam.

Biyolojik Kaynaklı Monolitlerin Sentezi ve Karakterizasyonu

“…TGA analysis of PLE and PME was carried out by a Mettler Toledo TGA/DSC 3+ STAR system thermogravimeter between 30 and 650 o C at a heating rate of 10 o C/min. All analysis were carried out under the nitrogen purge to inhibit sample oxidation [19].…”

Terpenes as natural building blocks for the synthesis of hierarchically porous polymers: bio-based polyHIPEs with high surface areas

“…Mert's group polymerised myrcene with various comonomers, namely ethylene glycol dimethacrylate (EGDMA), 1,3-butanedioldiacrylate (BDDA), divinylbenzene (DVB) and 4-vinylbenzyl chloride (VBC) to produce various polyHIPEs. 22,23 Additionally, the polyHIPEs based on myrcene were hypercrosslinked to increase their specific surface area from 2.25 m 2 g −1 to 60.18 m 2 g −1 , 23 modified with nanoclay to improve their mechanical properties and interconnectivity 24 and used for the adsorption of different organic solvents. 25 In this study limonene, carvone and myrcene will be used to synthesise bio-based polyHIPEs by using either trimethylolpropane triacrylate (TMPTA) or pentaerythritol tetraacrylate (PETA) as the crosslinkers.…”

Creation of adjacent monolithic and self‐forming porous fragments in a polymerizing layer by optical scanning stereolithography

“…Another way to obtain porous polymer materials is the PPC curing in the presence of a nonreactive component (NC), which does not participate in the polymerization reaction and is incompatible with the polymer 1,8,27–35 . After NC removal from in the polymer matrix, pores remain, and their parameters are determined by the nature and amount of the pore‐generating additive.…”

“…By acting with inhomogeneous light, or by moving illumination boundary, it is possible to form spatial distribution of the NC concentration, and, consequently, to vary the structure of the resulting polymer 36–42 . That will expand the capabilities of existing optical stereolithographic systems, which use the PPC of one original formulation to form an object 8,33,34 …”