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 7
... viscoelastic behaviour . Nowadays ideal elastic solids or ideal viscous liquids are believed to be more the exception than the rule . [ 19 ] Accordingly , rheology gives relationships between stress , strain and time for the deformation ...
... viscoelastic behaviour . Nowadays ideal elastic solids or ideal viscous liquids are believed to be more the exception than the rule . [ 19 ] Accordingly , rheology gives relationships between stress , strain and time for the deformation ...
Page 9
... viscoelastic behaviour at small stresses or strains and non - linear viscoelastic behaviour of the material at high stresses or strains . Non - linear viscoelastic behaviour is one of the reasons that makes the rheology a useful and ...
... viscoelastic behaviour at small stresses or strains and non - linear viscoelastic behaviour of the material at high stresses or strains . Non - linear viscoelastic behaviour is one of the reasons that makes the rheology a useful and ...
Page 97
... viscoelastic deformation At first , the discotic side chain polymer solutions were deformed in the linear viscoelastic region . The stresses accompanied with the linear deformations allow more insight into the structure and relevant ...
... viscoelastic deformation At first , the discotic side chain polymer solutions were deformed in the linear viscoelastic region . The stresses accompanied with the linear deformations allow more insight into the structure and relevant ...
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/mē 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