Gallery spacing

Fig. 9.3 Illustration of a model of interlayer structure of intercalant N-(cocoalkyl)-N,N-[bis (2-hydroxyethyl)]-N-methyl ammonium cation (qCi4(OH)) in the gallery space of layered titanate (HTO). The average distance between exchange sites is 0.888 nm, calculated from the surface charge density of 1.26e /nm2. For qCi4(OH), the obtained molecular length,...

Atmospheric oxygen may initiate in situ polymerization [55] as well as hght as exemplified by the photo-induced isomerization/polymerization of (Z,Z)-muconate anions in the gallery space of LizAl LDH [61] and the photoisomerization of indolinespirobenzopyran [62]. 

Compatibility of NA with organic polymer is much inferior to the compatibility of , 15A, and SP. Thus, Sl-NA-4 has inferior thermal stability as compared to the other three clays. Moreover, the intergallery spacing of NA is very small (only 1.22 nm, obtained from XRD results, Fig. 26a). Only a few chains of HNBR (with 34% acrylonitrile content), being bulky in nature, can find their way into such a small gallery space, which results in poor polymer-filler interaction. This is confirmed by both XRD and (Fig. 26a, b). 

Figure 5 Intercalation of hydrophobic short-chain amines into a-ZrP to widen the gallery spacings and substitution of these by small organic cations.

Table 1 Variability of the Gallery Spacing With Respect to the Guest Size as Observed from the X-ray Diffraction Data...

The interlayer expansions shown in Table 6.2 take into account the removal of the loosely bound layer of water from the gallery space of the host, upon intercalation of the polymer. 

Bissessur et al. recently reported on the inclusion of poly[bis(methoxyethoxyethoxy)-phosphazene] (MEEP) complexed with lithium triflate into the gallery space of GO [94]. 

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