A Rheological and Structural Study of Polymer NetworksContents of this doctoral dissertation include: primary polymer molecules with a mondisperse distribution of the molecular weights, crosslinks of any functionality, primary polymer molecules with a disperse distribution of the molecular weights, the sol fraction, number and weight average degrees of polymerization, Schulz-Zimm distribution, fractions of ideal networks and dangling ends, molar masses between the crosslinks |
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Page 43
... dangling ends , w Another set of very useful network parameters to gain more insight into the structure of the network is the fraction of ideal network , wm , and the fraction of dangling ends , Wf . As was already mentioned before ...
... dangling ends , w Another set of very useful network parameters to gain more insight into the structure of the network is the fraction of ideal network , wm , and the fraction of dangling ends , Wf . As was already mentioned before ...
Page 78
... dangling free ends ( right ) versus the weight fraction of the lower molecular weight component , wi , for different values of the elastic e e − ) ; G2 = 125 N / m2 ( modulus of the network ; G. = 6.25 N / m2 ( · G2 = 2500 N / m2 ...
... dangling free ends ( right ) versus the weight fraction of the lower molecular weight component , wi , for different values of the elastic e e − ) ; G2 = 125 N / m2 ( modulus of the network ; G. = 6.25 N / m2 ( · G2 = 2500 N / m2 ...
Page 82
... dangling ends can be explained as follows . Network formation starts with the formation of a highly non - ideal network , with a relative large number of dangling ends . Progress of the crosslinking causes more polymer molecules to be ...
... dangling ends can be explained as follows . Network formation starts with the formation of a highly non - ideal network , with a relative large number of dangling ends . Progress of the crosslinking causes more polymer molecules to be ...
Common terms and phrases
1,1,2-trichloroethane active network chains average crosslinking index average molar mass average molecular weight calculated crosslink functionality crosslinked system crosslinks per unit curves cycle rank dangling ends decrease deformation degree of polymerisation discotic side chain discotic side-chain polymers disperse distribution dynamic elastically active network ended mesogens equilibrium shear modulus figure Flory fraction of dangling fraction of ideal Franse frequency high shear rates increase kg/mol mijn molecular weight distribution monodisperse distribution N/m² network of polymer network parameters Nijenhuis number and weight number average degree number average molecular number of crosslinks physical network poly(vinyl chloride polydispersity index polymeric primary polymer molecules relationship rheological measurements Schulz-Flory distribution Schulz-Zimm distribution shear rates side chain polymer sol fraction solubility parameter solution of discotic solvent storage modulus strain structure substituting equation temperature tetrafunctional crosslinking unit volume values viscoelastic viscosity w/w solution w₁ weight average crosslinking weight average degrees weight average molecular yield stress zijn