Given the large amount of anthropogenic CO2 emissions, it is advantageous to use CO2 as feedstock for the fabrication of everyday products, such as fuels and materials. An attractive way to use CO2 in the synthesis of polymers is by the formation of five‐membered cyclic organic carbonate monomers (5CCs). The sustainability of this synthetic approach is increased by using scaffolds prepared from renewable resources. Indeed, recent years have seen the rise of various types of carbonate syntheses and applications. 5CC monomers are often polymerized with diamines to yield polyhydroxyurethanes (PHU). Foams are developed from this type of polymers; moreover, the additional hydroxyl groups in PHU, absent in classical polyurethanes, lead to coatings with excellent adhesive properties. Furthermore, carbonate groups in polymers offer the possibility of post‐functionalization, such as curing reactions under mild conditions. Finally, the polarity of carbonate groups is remarkably high, so polymers with carbonates side‐chains can be used as polymer electrolytes in batteries or as conductive membranes. The target of this Review is to highlight the multiple opportunities offered by polymers prepared from and/or containing 5CCs. Firstly, the preparation of several classes of 5CCs is discussed with special focus on the sustainability of the synthetic routes. Thereafter, specific classes of polymers are discussed for which the use and/or presence of carbonate moieties is crucial to impart the targeted properties (foams, adhesives, polymers for energy applications, and other functional materials).

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The effectiveness of the C-silicyne monolayer as an anode material in the next generation non-Li ion batteries is validated by high storage capacity and working voltage range.

Synthesis of polymer nanoparticles bearing pendant cyclic carbonate moieties is carried out to explore their potential as versatile supports for biomedical applications and catalysis.

The continuous depletion of lithium resources has drawn great attention toward the development of nonlithium rechargeable batteries having electrode materials that prove to be promising in delivering advantages of cost-effectiveness, a high charge/discharge rate, and excellent storage capacity. Because of its planar honeycomb structure, a 2-D monolayer of siligraphene SiC 7 has been explored as an electrode material for Na-ion batteries on the basis of its geometric, structural, and electrochemical properties by employing van der Waals corrected first-principles calculations based on density functional theory. Its dynamic and thermal stability is well validated using phonon dispersion spectra and ab initio molecular dynamics. A direct band gap of 0.7 eV presents it as a semiconductor material effective to be used as an electrode. Potential adsorption sites on the surface of SiC 7 are studied for their effective storage capacity. Bader charge analysis revealed the charge transfer between the monolayers upon adsorption of Na ions. A high Na storage capacity of 696 mA h/g is obtained along with a low diffusion barrier of 0.8 eV, which further facilitates easy diffusivity of Na ions through the monolayers. Additionally, a working voltage of 0.84 V reveals that SiC 7 will be a potential candidate for anodes in Na-ion batteries.