Lattice model studies of the effect of chain flexibility on the nematic–isotropic transition. III. Completely flexible chain solutes in rigid rod solvents

1978 ◽  
Vol 69 (6) ◽  
pp. 2332 ◽  
Author(s):  
F. Dowell ◽  
D. E. Martire
Keyword(s):  
Lattice Model ◽  
Flexible Chain ◽  
Chain Flexibility ◽  
Model Studies ◽  
Rigid Rod

Characterization of Polyquinoline Blends Using Small Angle Scattering

1989 ◽  
Vol 171 ◽  
Author(s):  
Wen-Li Wu ◽  
John K. Stille ◽  
Joseph W. Tsang ◽  
Alex J. Parker
Keyword(s):  
Small Angle ◽  
Quantitative Information ◽  
Flexible Chain ◽  
X Ray ◽  
Molecular Dispersion ◽  
Angle Scattering ◽  
Scattering Measurements ◽  
Rigid Rod ◽  
Scattering Contribution

ABSTRACTTo determine the compatibility between the rigid rod and the flexible chain polyquinolines, both small angle x-ray and neutron scattering measurements were conducted on blends containing deuterated flexible chains. The scattering intensities from both x-ray and neutron were reduced to their absolute scales in order to remove the scattering contribution from microvoids which tended to overshadow the signal of molecular origin. Quantitative information regarding the molecular dispersion in a 50/50 rigid rod and flexible chain blend was obtained. The result indicated that this material was partially segregated but not to the point of single component phases.

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