Physical and chemical cross-linking effects in polyurethane elastomers

 
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Journal part (EN)
Scientific article (EN)
1990 (EN)
Physical and chemical cross-linking effects in polyurethane elastomers (EN)
Kontou, E (EN)
Niaounakis, M (EN)
Kefalas, V (EN)
Spathis, G (EN)
A series of polyester-urethane block copolymers of various molecular weights was prepared via a two-step polymerization process. The prepolymer composition was kept constant in all the samples, while the NCO/OH ratio during the chain extension was varied from 0.9 to 1.2. Chemical and physical cross-linking effects were studied by means of F.T.I.R spectroscopy, swelling, and elastic behavior. Equilibrium stress-strain measurements and tensile-retraction tests were carried out to examine the elastomeric behavior of the materials tested. The extent of agreement between microscopic and macroscopic behavior was then evaluated. © 1990 Steinkopff. (EN)
journalArticle (EN)
tensile retraction (EN)
Polyester-Urethane Elastomers (EN)
cross-linking, chemical and physical (EN)
Spectroscopy, Infrared (EN)
Tensile Retraction (EN)
Polymer Science (EN)
Chemistry, Physical (EN)
Polyurethanes (EN)
Segmented Polyurethanes (EN)
Materials Testing--Tensile Tests (EN)
stress-strain-measurements (EN)
Polyurethane-block-copolymers (EN)
IR-spectroscopy (EN)
Thermoplastic Elastomers--Physical Chemistry (EN)
National Technical University of Athens
Digital Library of National Technical University of Athens | Dspace@NTUA
Κεντρική Βιβλιοθήκη Ε.Μ.Π.
Ιδρυματικό Αποθετήριο
Δημοσιεύσεις μελών Δ.Ε.Π. σε περιοδικά
Colloid & Polymer Science (EN)
English
1990 (EN)
http://hdl.handle.net/123456789/10276
ISI:A1990DX13500008 (EN)
268 (EN)
644 (EN)
7 (EN)
10.1007/BF01410405 (EN)
636 (EN)
0303-402X (EN)
Steinkopff-Verlag (EN)



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