Reticulate network

Using porous carbon so that the fluorine would enter the pores and move up through an internal reticulated network of pores... 

Water and ice polymorphs. Water is a very interesting compound as the oxygen quadrupole coupling tensor of the free molecule has been accurately measured by beam-maser spectroscopy (27) and various ice polymorphs have been studied by NMR or NQR (28). This gives us an opportunity to show that the PCM formalism is able to switch easily between isolated molecules and fully reticulated networks. Table II gives our results obtained using the following parametrization for... 

These characteristics indicate in particular that one can improve the adhesion between the brush or the pseudo-brush and the elastomer by decreasing the number of monomers between crosslinks, Nc. This result, which is a direct consequence of the de Gennes analogy between a network and a melt (see Sect. 4.1), cannot be correct for too small values of Nc, that is for too highly reticulated networks. For pseudo-brushes, it has been conjectured [107] that Eqs. (20) and (21)... 

A similar, but highly porous, vitreous carbon material—reticulated vitreous carbon (RVC)—has found widespread application for flow analysis and spectro-electrochemistry (25). As shown in Figure 4-10, RVC is an open-pore ( spongelike ) material such a network combines the electrochemical properties of glassy carbon with many structural and hydrodynamic advantages. These include a very high surface area ( 66 cm2 cm-3 for the 100-ppi grade), 90-97% void volume, and a low resistance to fluid flow. 

The formation of a network or net-like structure. In rubber technology this term was first applied to the anisotropy of carbon black particles, which were described as having a reticulate chain structure , later abbreviated simply to structure . Retracted Spew... 

Tuerker and Mavituna immobilized Trichoderma reesei within the open porous networks of reticulated polyurethane foam matrices. Growth pattern, glucose consumption, and cellulase production were compared with those of freely suspended cells. The method of immobilization was simple and had no detrimental effect on cell activity. Hundreds of similar projects could be cited. Not all rated the use of polymethane as the preferred technique. If a statistical analysis were conducted on aU the immobilization literature, we are sure that no single technique would be dominant. However, the combination of ease of immobilization, cost of materials, flow-through properties, control of flux rate through the immobilizing membrane, high surface-to-volume ratio, and other factors make polymethane a viable substratum for the continuous production of proteins. 

Reticulate Having veins, fibers or lines crossing like the threads or fibers of a network. 

Features The root is smooth and heavy, and arrives in this country peeled. It is identifiable by the dark brown spots and a reticulation of white lines. The Canton rhubarb is more fibrous, unspotted, and the white network is less prominent than that from Shansi. The quality of these roots is judged by the fracture, which should show bright, the inferior kinds being a dull brown. 

Reticulate composites comprising needles of TTT-TCNQ (tetrathiotetra-cene-tetracyaiioquinodimethane) in poly(bisphenol-A-carbonate) were first described in the early 1980s. The composites were prepared by casting thin films from a solution of the components in o-dichloromethane. The composite contained a network of fine interconnected needle crystals of the CT salt and had a percolation threshold of 2-3 mass% of the CT salt, as shown in Fig. 8.22. 

Polymers can be viewed as consisting of a backbone on which are attached atoms or groups of atoms. The polymer backbone may have a linear, branched, or network structure. More unusual polymer structures may have peculiar characteristics such as star, comb-like, ladder, or other structures. For linear polymers the backbone extends mainly in one dimension, for sheets in two dimensions, and for reticulate polymers in... 

Fig. 1.7. A reticulated structure (network) here the functionality of the branching points is equal to four.

Fig. 8.17. Chemical structure of silicones used to coat corks, (a) Non-reactive silicone oil. (b) Reactive oil that reticulates and polymerizes to form an elastomer with a three-dimensional network. R = lateral radical or reactive terminal...

Fig. 6 FuUy reticulated nanoporous Fe-carboxylate networks comprising diiron centers as coordination motif. a,b STM topographs of isomeric FeTPA network phases a identical and b alternating Fe dimer arrangement, c High-resolution STM image of the FeBDA network. d STM image of the FeTDA network phase. Tentative models are superimposed on the STM images. Adapted from [207]...

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