Theoretical modeling of the relationship between Young's modulus and formulation variables for segmented polyurethanes |
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| Authors: | Valeriy V. Ginzburg Jozef Bicerano Christopher P. Christenson Alan K. Schrock Alexander Z. Patashinski |
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| Affiliation: | 1. The Dow Chemical Company, Building 1710, Midland, Michigan 48674The Dow Chemical Company, Building 1710, Midland, Michigan 48674;2. Bicerano & Associates Consulting, Inc., 1208 Wildwood Street, Midland, Michigan 48642;3. The Dow Chemical Company, Building 1608, Freeport, Texas 77541;4. Department of Chemistry, Northwestern University, 2145 Sheridan Rd., Evanston, Illinois 60208 |
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| Abstract: | We describe a new modeling approach to prediction of Young's modulus of segmented polyurethanes. This approach combines micromechanical models with thermodynamic considerations based on the theory of block copolymers. The resulting model predicts both the equilibrium morphology and the “ideal” Young's modulus of a segmented polyurethane polymer as a function of its formulation (hard segment chemical structure, hard segment weight fraction, soft segment equivalent weight) and temperature. © 2007 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 45: 2123–2135, 2007 |
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| Keywords: | computer modeling elastomers mechanical properties modulus polyurethanes |
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