Floating rod model

The molecular composite system under consideration may be envisaged as a floating rod model proposed by Kratky (13) in which the fiber crystal molecules are imbedded in the matrix of flexible amorphous matrix. The orientation distribution function of the molecular composite subjected to an external deformation may be expressed by assuming affine deformation (14-16) as follows ... 

Figure 11. The observed crystal orientation factor (filled circles) of the 80/20 PI/PEI molecular composite in comparison with the prediction of the floating rod model (the solid line).

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