Engineering interactions between nanoparticles using polymers

Green synthesis of hypercrosslinked polymers for CO2 capture and conversion: recent advances, opportunities, and challenges

“…Preparation of HCPs and their derivatives with smart photo/electrical capabilities will also provide more opportunities to meet the criteria of green chemistry. (3) As catalysts, HCPs and their carbonaceous counterparts may not exhibit exceptional performance and can potentially be integrated with homogeneous catalysts or serve as a supporting matrix for single-atom catalysts, clusters, and nanoparticles 215,234,235 to enhance the efficiency of CO 2 conversion under low pressure. 236,237 At the same time, improving the pore density and regularity of HCPs is also crucial to their expected performance.…”

Interplay of Grafted and Adsorbed Chains at the Polymer–Particle Interface in Tuning the Mechanical Reinforcement in Polymer Nanocomposites

“…Based on TEM and SAXS/USAXS, it can be seen that 91k-0. 5 where α is the grafted/matrix chain length ratio, σ is the grafting density, and N is the degree of polymerization of the grafted chain in previous literature. 47 As shown in Figure 2b, the phase diagram of GNP-filled PGNCs in this work generally fits well in these classifications.…”

“…Polymer nanocomposites have broad appeal in aerospace, electronics, sensors, optics, and packaging fields due in part to their ability to reinforce mechanical properties and other property sets over the neat polymer. − Polymer-grafted nanoparticles (GNPs) are embedded in the polymer matrix with the primary aim of controlling the dispersion and assembly of nanoparticles in these nanocomposites. − The unique feature of grafted systems is the microstructure of the polymer brush and the interaction with neighboring brushes and matrix chains. − The microstructure and interactions of the interface in PGNCs are affected by graft densities, graft chain lengths, particle–polymer interactions, and so on. − It is believed that the polymer–particle interface consisting of adsorbed or grafted chains plays a key role in the mechanical reinforcement of polymer nanocomposites. ,− However, the relationship between the polymer-grafted interface and the mechanical reinforcement of GNP-filled polymer nanocomposites (PGNCs) remains elusive.…”

Fluoropolymer Nanoparticles Synthesized via Reversible-Deactivation Radical Polymerizations and Their Applications

“…When it comes to mechanical deformation, compressive stress induces alterations in the lattice strain and bonding energies of NPs, subsequently bolstering or weakening their mechanical performance . Additionally, with an externally applied magnetic field, ferromagnetic NPs have the potential to manifest a giant magnetic dipole moment owing to all spins oriented in a uniform direction, yielding a state of superparamagnetism. , For polymer-modified NPs, external fields, including light, magnetic, and electric fields, could influence the interaction between NPs, enabling dynamic self-assembly . However, the current knowledge of FPNPs in this regard remains circumscribed.…”

“…194,328 For polymer-modified NPs, external fields, including light, magnetic, and electric fields, could influence the interaction between NPs, enabling dynamic self-assembly. 329 However, the current knowledge of FPNPs in this regard remains circumscribed. In light of the properties intrinsic to fluoropolymers, exemplified by PVDF and related copolymers, which are endowed with piezoelectric and ferroelectric properties, 330,331 alterations in electrochemical behavior may occur when these fluoropolymers are subjected to mechanical deformation and electric field, presenting promising avenues for the design of stimuli-responsive nanomaterials.…”