Group contribution analysis applied to the Havriliak-Negami model for polyurethanes

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Authors
  1. Davis, W.M.
  2. Szabo, J.P.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
Group contribution analysis (GCA) has been applied to many of the physical properties of polymers in the past. In this paper, GCA has been applied for the first time to the frequency dependent complex modulus of polymeric materials, which may be described in terms of the Havriliak-Negami (H-N) equation. This approach has been tested on a set of polyurethanes for which the H-N parameters have been uniquely determined. It has been shown that the dynamic mechanical behaviour of polymers may be described in terms of group additive relationships, at least for the 14 polyurethanes and nine structural groups which were studied here.
Keywords
Polymer modelling;Complex modulus;Dynamic Mechanical Properties;GCA (Group Contribution Analysis);Havriliak-Negami Model;Modulus data
Report Number
DREA-SL-1999-122 — Reprint
Date of publication
01 Sep 1999
Number of Pages
10
Reprinted from
Computational and Theoretical Polymer Science, vol 11, 2000, p 9-15
DSTKIM No
CA010568
CANDIS No
515354
Format(s):
Hardcopy;Document Image stored on Optical Disk

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