A group contribution model was developed for the correlation and prediction
of the thermal conductivity of glassy and liquid amorphous polymers. The m
odel is predictive and only requires the structure of the polymers and the
existing group parameters in the calculation. A total of 28 polymer systems
with 700 data points were used to test the model. Its predictive accuracy
is normally better than 15%. The new model is simple to apply, which is ver
y convenient for engineering use. (C) 2001 Elsevier Science B.V. All rights
reserved.