We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Badanie stabilnooeci chemicznej prepolimerów eterouretanowych.
- Authors
Datta, Janusz; Leszkowski, Krzysztof
- Abstract
The ether-urethane prepolymers based on oligśtherol („Rokopol D 2002“ or „PTMG 1000“) and excess of diphenylmethane diisocyanate (Table 1) were prepared. The effects of viscometer pin rotation speed, temperature, NCO groups percentage and the type of oligśtherol used on the viscosity of the products were determined (Fig. 1-3). The stability of prepolymers discussed during four-week storage (change of free NCO groups' content, Fig. 4 and 5) has been evaluated. It was found that the use of „PTMG 1000“ in the synthesis significantly increased the product stability. The chemical structures of prepolymers obtained were confirmed by FT-IR method (Fig. 6).
- Subjects
POLYMERS; URETHANE; ETHER (Anesthetic); VISCOSIMETERS; ROTATIONAL motion; TEMPERATURE; STABILITY (Mechanics); FOURIER transform infrared spectroscopy
- Publication
Polimery, 2008, Vol 53, Issue 2, p115
- ISSN
0032-2725
- Publication type
Article