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 122
... solubility parameters , i.e. the incompatibility of the mesogen and the solvent is taken as the driving force for the crosslinking process . Hildebrand defined the solubility parameter , 8 , of a substance as the square root of the ...
... solubility parameters , i.e. the incompatibility of the mesogen and the solvent is taken as the driving force for the crosslinking process . Hildebrand defined the solubility parameter , 8 , of a substance as the square root of the ...
Page 123
... parameter of the polymer and the solvent may not differ too much . As a general rule : [ 14 ] 2 2 △ ε2 = ( §d ... solubility parameters , data were taken from the book by van Krevelen . [ 15 ] The results are given in table 5.1 . Table 5.1 ...
... parameter of the polymer and the solvent may not differ too much . As a general rule : [ 14 ] 2 2 △ ε2 = ( §d ... solubility parameters , data were taken from the book by van Krevelen . [ 15 ] The results are given in table 5.1 . Table 5.1 ...
Page 124
... solubility parameters reveals more insight into this order . In this study , the most important features of the chemical structure of the solvent molecules are the presence of chloride atoms and their relatively high density . The ...
... solubility parameters reveals more insight into this order . In this study , the most important features of the chemical structure of the solvent molecules are the presence of chloride atoms and their relatively high density . The ...
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