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Rheological study of segmented polyurethane and polycaprolactone blends

✍ Scribed by Shadi Hassan Ajili; Nadereh Golshan Ebrahimi; Mahmoud Ansari

Publisher
Springer-Verlag
Year
2007
Tongue
English
Weight
324 KB
Volume
47
Category
Article
ISSN
0035-4511

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Structure and viscoelastic properties of
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Structure and viscoelastic properties of segmented polyurethanurea (SPU) blends were investigated. The glass transition temperature (T,) of poly(tetramethy1ene glycohol) (PTMG) in a soft-segment block of the component SPU increased with decreasing molecular weight of PTMG. The blend samples showed t

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Almtract--Segmented polyurethanes based on polypropylene glycol, butane diol and a mixture of (diphenylmethane diisocyanate)/(toluene diisocyanate) (MDI/TDI) were prepared and characterized. Soft segment concentration was kept constant at 50% in all polymers but the structure of the hard segment was