Mechanism of High Proton Mobility in the Two-Dimensional Nanospace at the Interlayer of a Multilayer Polymer Nanosheet Film

Synthesis of Semisynthetic Dual-State Fluorescent Polymers and Roles of Starch/Pectin on AIET-Assisted Dual-Emission, Conductivity, and Metal-Ion Sensing

“…Earlier, the optimum extent of grafting, maximum hydrogen bonding interactions, and highest moisture loss in SAML3/PAML4 were already concluded from NMR peaks of SAML3/PAML4 at 4.80/3.51 ppm, peak intensities within 3140–3540 cm –1 in FTIR, and thermograms within 30–180 °C, respectively (Figures , S4, S6, and S7 and Tables S4, S5, and S7). Additionally, the trapped interlayer water molecules within these polymeric networks together with the hydrogen-bonded dipolar functionalities paved the hydrophilic channels for proton movements facilitating proton jump in SAML3/PAML4 . The I – V measurements of AML4, SAML3, and PAML4 exhibited non-Ohmic variations ascribed to the generation of local fields involving different aggregates of AML4, SAML3, and PAML4 (Figure c, f, and i) .…”

“…Interestingly, the lone pair of −OH/–COOH/–COOCH 3 functionalities in SAML/PAML should further promote the electrical conductivity by increasing the solvation of charge carriers within polymeric network of SAML/PAML . In addition, the trapping of interlayer water molecules within these polymeric networks by the −COOH functionalities of MDBA, IMPA, and MPA are expected to further accelerate the conductivities in SAML/PAML . However, in recent years, the extensively explored proton conductivities mostly involve the aromatic conjugated polymers. − Thus, the systematic synthesis of AIET-active purely aliphatic dual-state emitting semisynthetic polymeric materials having promising conductivity and suitability in HTMI sensing is indeed a challenging piece of work and still not reported.…”

Order-Order Transition in Statistical Copolymer Thin Film Induced by LCST-Type Behavior

“…This discrepancy arises because the hydrophobic layer in SCSegL consists of two polymer layers, whereas in SCMixL, it is formed by only one polymer layer. The structure of SCSegL resembles that which exhibits superfast proton conductivity . Consequently, the application of SCSegL to ionic materials is currently underway.…”

“…Hydration significantly influences the mechanical and physical properties of polymers, making them more flexible as water molecules act as plasticizers. , Enhanced biocompatibility arises from hydrated polymers that mimic the natural environment of biological tissues. − Additionally, proton conductivity increases due to the formation of uniform water channels. − Moreover, hydration induces molecular-scale structural changes, prompting proteins to fold into complex three-dimensional structures . Conversely, dehydration causes proteins to lose their highly ordered structures and biological activity. − Therefore, proteins transition from ordered to disordered structures through the hydration-dehydration process.…”

High Affinity of Nanoparticles and Matrices Based on Acid-Base Interaction for Nanoparticle-Filled Membrane

“…Furthermore, sulfonated titanium dioxide nanoparticles have been added to the sulfonated polyethersulfone to improve water absorption and proton conductivity [8]. As evidenced by studies of microphase-separated structures, it has been attributed to the construction of proton-conductive channels that allows for fast proton conduction by introducing nanoparticles [13]. As mentioned earlier, the homogeneous dispersion of nanomaterials in the matrix enhances various functionalities compared to the neat matrix.…”