published by Damascus University in 2006 in Physics and research's language is العربية
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Abstract in English
References used
Lyman, D. J. (1972). “Step Growth Polymerization“. d.h solmon editor vol 3.95
Sanunders, J. H. (1975). High Polymer k. c. Frisch, s. c. reegen Editors Vol 16, part 1. “polyurethanes chemistry and technology
Camberlin, Y., Pascault, J. P. (1994). J. Die. Makromol.chem 350, 32
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