Predicting chain conformation and entanglement of polymers from chemical structure
- 1 June 1992
- journal article
- research article
- Published by Wiley in Polymer Engineering & Science
- Vol. 32 (12) , 823-830
- https://doi.org/10.1002/pen.760321209
Abstract
The characteristic ratio C∞ and the entanglement molecular weight Me are two key molecular parameters that control melt viscoelasticity, solid mechanical (brittle/ductile) behavior, and adhesion of polymers. We show that the characteristic ratio C∞ and the entanglement molecular weight Me can be predicted from chemical structure by group additivity with uncertainties usually less than ∼ 7% for C∞ and ∼ 15% for Me, comparable with the accuracies of experimental values.Keywords
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