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Polymer-test solute systems

Flory-Hu ns Interaction Parameter for Polymer-Test Solute Systems... [Pg.331]

For the same polymer and curing procedure, networks formed in the presence of various diluents (

Kinetic theory requires C

volume fraction of polymer during solution cure), assuming comparable numbers of crosslinks per primary molecule are introduced. Experimentally C,

state cures, although they do decrease somewhat in the more dilute curing systems (q> < 0.2). Solution cured polydimethyl siloxane networks show similar behavior in their dry state moduli (275). [Pg.104]

Viscoelastic flow behaviour of dilute polymer solutions in porous media is described as a method for characterization of polymer-solvent-temperature systems. Porous media flow tests provide information on the solution state of polymer solutions and the molecular weight of the polymers used. Furthermore, flow-induced and thermally induced degradation effects - frequently observed in polymer solutions - can be characterized by the measurement of viscoelastic effects in flow through porous media. Decrease of molecular weight and changes of the conformation of macromolecules in solution are important parameters in these processes. [Pg.119]

In region FG the polymer is completely amorphous and the properties of the tested polymer- molecular probe solution can be investigated. Care must be taken to ensure that any contribution from surface adsorption is taken into account. For non-crystaUine polymers, liquid-like behavior is observed from point C onward. The location of point C on the temperature axis depends both on the tested polymer- molecular probe system considered and on chromatographic conditions, film thickness, and flow rate. [Pg.1225]

Recently, based on the random phase approximation, Benoit and his coworkers (BBA) proposed that any mixture of two monodisperse polymers could exhibit two relaxation modes, which was confirmed by their tests on a polystyrene-poly(methyl methacrylate)-toluene ternary mixture. Their formalism was based on the assumption that there existed only one translational mode in monodisperse polymer solutions. Memoto et al. has also reported that two modes were observed in one of several semidilute solutions of polymer-polymer-solvent ternary systems, but only one mode in polymer-solvent binary solutions, which agreed with the BBA theory. [Pg.208]

See other pages where Polymer-test solute systems is mentioned: [Pg.116]    [Pg.300]    [Pg.115]    [Pg.69]    [Pg.103]    [Pg.34]    [Pg.565]    [Pg.372]    [Pg.152]    [Pg.286]    [Pg.389]    [Pg.213]    [Pg.448]    [Pg.224]    [Pg.107]    [Pg.114]    [Pg.648]    [Pg.72]    [Pg.12]    [Pg.392]    [Pg.133]    [Pg.39]    [Pg.325]    [Pg.67]    [Pg.21]    [Pg.143]    [Pg.1681]    [Pg.423]    [Pg.350]    [Pg.20]    [Pg.177]    [Pg.204]    [Pg.74]    [Pg.277]    [Pg.356]    [Pg.907]    [Pg.94]    [Pg.281]    [Pg.472]    [Pg.593]    [Pg.439]    [Pg.254]    [Pg.89]   
See also in sourсe #XX -- [ Pg.331 ]



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Solution systems

System testing

Test solutions

Test systems

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