Ultimate Behavior

One advantage of dual-phase continuity, in tandem with doublenetwork formation, is a degree of imposed compatibility. With such 

---

In ternary systems, amorphous hard clusters can be formed. As explained above, at certain fraction of hard units and a certain conversion of functional groups, percolation threshold of the hard structure is reached. It has been found experimentally by analyzing the ultimate behavior of three- and four-component... 

This process is schematically shown in Fig. 8 where it has been analyzed in terms of the movement of two fronts, Vl5 the movement of a hydrating front and V2, the movement of an erosion front [29]. Clearly, the ultimate behavior of a device will be determined by the relative movement of these two fronts. If Vi > V2, the thickness of the reaction zone will gradually increase and at some time, the matrix will be completely permeated by water. At that point, all ortho ester linkages will hydrolyze at comparable rates and bulk hydrolysis will take place. However, if Vx = V2, then hydrolysis is confined to the surface layers and only surface hydrolysis will take place. In this latter case, rate of polymer erosion will be completely determined by the rate at which water intrudes into the polymer. 

As the relative values of both T and T play such an important role in determining the ultimate behavior of a polymer, we can begin an examination of their structures and properties by finding out how a polymer scientist might control these parameters. 

OOMar Martinez, L, Martin, M. D., Eceiza, A., Oyanguren, P., Mondragon, I. Phase separation in poly-sulfone-modified epoxy mixtures Relationships between curing conditions, morphology and ultimate behavior. Polymer 41 (2000) 1027-1035. 

Chaotic systems analysis is a way of evaluating the behavior of complex systems. A system can be anything from a hurricane or a computer network to a single atom with its associated particles. Chaotic systems are systems that display complex nonlinear relationships between components and whose ultimate behavior is aperiodic and unstable. 

The parameter p controls the strength deterioration for u>u. Load-displacement data for u>Uu are few and show wide variation in the post-ultimate behavior. Available test data indicate that p may be between 2.0 and 6.0 (see Fig. 6). Regression using all data points gives a mean value of 3.3. 

Kausch, H.H. (1971) Elastic and ultimate behavior of amorphous polymer networks. 

Aizpurua, B., Franco, M., Corcuera, MA., Riccardi, C.C., and Mondragon, I. (2000) Chemorheology and ultimate behavior of epoxy-amine mixtures modified with a liquid oligomer. /. Appl. Polym. Sci., 76 (8), 1269-1279. 

Kluso V, Faella C, Rizzano G (2001) Ultimate behavior of bolted T-stubs I theoretical model. J Struct Eng 127(6) 686-693... 

Firstly, the stability of the foam formed by P-casein and whole casein appears very different, the former being more stable. In order to further investigate this issne, we evalnate several surface properties of these two proteins. The surface tension and surface rheology do not seem to be accurate enough to account for this large difference in foam stability, since they show very similar values. However, the thickness of the foam films stabilized by the two proteins respectively seems to determine the ultimate behavior of the foam. Hence, the thicker foam film measured for P-casein probably prevents coalesce of air bubbles resulting in more stable foam formed by this protein as compared to whole casein. 

---