The tensile properties of polyether-based polyurethane (PU) filaments decrease with increasing chlorine concentrations as well as with treatment times. Fourier transform infrared (FTIR) results show the formation of quinoid, azo, and aldehyde groups in the chlorine-treated PU, and increased hydrogen
Crosslinking studies of polyether–ester-based polyurethane systems
✍ Scribed by H. Kothandaraman; K. Venkatarao; B. Chithambara Thanoo
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 438 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
Polyurethanes based on PPG 2000 with variable concentrations of TDI and TMP were prepared and used for sorption studies, employing homologous series of hydrocarbons such as benzene, toluene and xylene. The sorption was observed to be non-Fickian in nature. The solubility parameter of the polyurethan
In this work, we prepared the interpenetrating polymer networks of bismaleimide and polyether-type polyurethane(polyoxypropylene)-crosslinked epoxy (BMI/PU(PPG)-EP IPNs) by employing the simultaneous bulk polymerization technique. The polyurethane (PU)-crosslinked epoxy was identified via infrared (
Shape-memory polyurethanes (PUs) were synthesized by 4,4 -diphenylmethane diisocyanate (MDI), 1,4-butanediol (BD), and poly(tetramethyl oxide)glycol (PTMO). The morphology of PUs was studied using DSC, DMA, and TEM. The results indicated that the PUs would show different morphology by changing the m