Packing intersegmental

The final expression for the flow equalizing intersegmental pressure Pi as given by Eq. 1.42 can be rewritten in terms of the dimensionless packed length, X, as follows... 

The flow velocities through the packed and open segments in series can be expressed by contributions from the EOF and the intersegmental pressure driven flow so that for the case when the double layer thickness is smaller than 2% of the mean channel diameter, i.e., tea and xae > 50, it follows that [20]... 

Intersegmental pressure between the packed and open segments Ambient pressure Radial coordinate... 

The chapters devoted to structure-permeability properties of the more commercially advanced amorphous nylons (Chapter 5 (50)) and experimental polycarbonates (Chapter 7 (51)) illustrate many of the general principles needed for optimizing the barrier properties of essentially any polymer family. These chapters consider the importance of intersegmental packing and intrasegmental mobility on... 

The first value of ds in PTMSN can be attributed to intersegmental spacing and is indicative of looser chain packing as compared with other presented norbomene polymers. 

Another class of polymers with interesting intersegmental structure and packing properties are the poly(w-alkyl methacrylates) (55,56). Figure 13 gives the waxs pattern of PMMA, PnBMA, PnHMA, PnDMA, and PnLMA. With the exception of PMMA, the waxs spectra for poly( -alkyl methacrylates) show three peaks (arrows 1, 2, and 3 in Fig. 13b). The peak at high q, with an equivalent... 

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