| 000 | 01657nam a2200181Ia 4500 | ||
|---|---|---|---|
| 008 | 220216s9999 xx 000 0 und d | ||
| 100 | _aTonelli C | ||
| 245 | 0 | _aNew fluorinated thermoplastic elastomers | |
| 260 |
_bJournal of Applied Polymer Science _c1996 |
||
| 300 | _a311-327 | ||
| 520 | _aNew fluorinated thermoplastic elastomers (FTE) with perfluoropolyether (PFPE) blocks have been synthesized by reacting a fluorinated macrodiol with aromatic diisocyanates in the presence of a solvent, followed by subsequent chain extension with low molecular weight aliphatic or aromatic diols. Tensile properties measurements and dynamical-mechanical analysis (DMA) have been carried out and the relationship between chemical structure and final properties has been determined. These new thermoplastic fluorinated polyurethanes show an elastomeric behavior over a wide temperature range (between -75 and 100 C), thanks to their multiphase morphology consisting of a continuous fluorinated phase with a very low Tg (-120 C) and a dispersed high melting hydrogena hard phase, as verified by a calorimetric and dynamic-mechanical analysis. At the same time, some of the outstanding properties of fluorinated oligomers, such as chemical inertness and low surface tension, are retained in the final polymers. Thanks to these characteristics this new class of polymeric materials provides new opportunities for the application of thermoprocessable elastomers in advanced technological fields. | ||
| 650 | _aFluorinated thermoplastic elastomer | ||
| 700 | _aAjroldi G | ||
| 700 | _aScicchitano M | ||
| 700 | _aSimeone G | ||
| 700 | _aTrombetta T | ||
| 942 | _cJS | ||
| 999 |
_c63810 _d63810 |
||