X-ray photoelectron and static secondary-ion mass spectroscopic studies of segmented block copoly(ether-ester)s

Effects of crosslinking on adhesion behavior of waterborne polyurethane ink binder

“…Moreover, the decrease of the surface free energy is mainly the decrease in p . Some experimental studies have showed that soft segments migrate near the air surface, while the hard segments migrate toward the bulk and aggregate closer to the interface at the substrate surface [28][29][30]. Crosslinking decreases the segmental mobility of PU molecular chains and therefore the enrichment of polar ester groups of soft segment PCL on the surface of WPU film decreases, which produces a decrease in the surface energy of WPU film.…”

Effects of the Sequence Distribution of Poly(acrylonitrile−butadiene) Copolymers on the Surface Chemical Composition As Determined by XPS and Dynamic Contact Angle Measurements

“…X-ray photoelectron spectroscopy (XPS) has been widely used to study the surface of copolymers and polymer blends, and it can provide a quantitative measure of the surface chemical composition. − In addition, angle-resolved XPS analyses can provide information on the homogeneity of the composition and structure in the topmost 15−70 Å of a polymer surface. , …”

From Dendrites to Hemispheres: Changing Lithium Deposition by Highly Ordered Charge Transfer Channels

“…To analyze comprehensively the results in Figure , O1s for AAO after cycling (Figure b1) and O1s for lithium after cycling (Figure c1) can be fitted as three peaks at 531.3, 532.5, and 533.4 eV, respectively, assigned to Li–O, H–O, and C–O bonds. This is reasonable because the two samples, AAO and lithium, were measured after cycling, and the signals could come from ether electrolytes or lithium deposits . Theoretically, the signal of oxygen vacancy should appear at the region higher than 531.7 eV (O1s binding energy for AAO), because the defect of oxygen makes a positive chemical shift compared to stoichiometric metal oxides.…”

“…This is reasonable because the two samples, AAO and lithium, were measured after cycling, and the signals could come from ether electrolytes or lithium deposits. 52 Theoretically, the signal of oxygen vacancy should appear at the region higher than 531.7 eV (O1s binding energy for AAO), because the defect of oxygen makes a positive chemical shift compared to stoichiometric metal oxides. Unfortunately, at the region, the signal is overlapped with the H−O signal, leading in the difficulty to mark separately the oxygen vacancy in Figure 3b1.…”