Fig. 3: Chemical structure and compositional analysis of CIOHMs with varying CA levels.
From: Inorganic-organic hybrid metamaterials with switchable high stiffness and elasticity
A Schematic representation of the CIOHM synthesis process, detailing the molecular architecture and emphasizing the role of CA as a crosslinking agent within the hybrid material. Gray area: synthesis of nanocluster hydrogel. Orange area: chemical structures of the rigid segment. Blue area: chemical structures of the elastic segment. B Attenuated total reflection Fourier-transform infrared (ATR-FTIR) spectra highlighting the chemical signatures of CIOHMs formulated with differing CA concentrations (absent, 0.6%, and 1.2%, wt%). C X-ray diffraction (XRD) patterns of CIOHMs, showing level of CA has no influence on the crystalline phases of CIOHM. D A survey X-ray photoelectron spectroscopy (XPS) spectrum of CIOHM, providing a broad overview of the elemental composition and chemical states present in the material. E High-resolution XPS spectra for Ca 2p and P 2p core levels in CIOHMs infused with varying proportions of CA (absent, 0.6%, and 1.2%, wt%), implying the reaction between CA and Ca. Blue lines were baselines. Green and purple lines were fitted curves of binding energies.
