The influences of molecular weight, monomer composition and concentration of acrylic oligomers, on the activation energies for viscous flow were studied. Activation energy of acrylic oligomer solution decreased with decreasing molecular weight of oligomers at constant solid content, but it increased with decreasing molecular weight of oligomer when the viscosity of solution is constant.
The influence of activation entropy for viscous flow was considerably small, but it is not neglegible when the molecular weight of oligomer changed.
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