Elastomers from Renewable Metathesized Palm Oil Polyols
| Autor: | Michael C. Floros, Prasanth K.S. Pillai, Suresh S. Narine |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Thermogravimetric analysis Materials science Renewable Energy Sustainability and the Environment General Chemical Engineering 02 engineering and technology General Chemistry Dynamic mechanical analysis 010402 general chemistry 021001 nanoscience & nanotechnology Elastomer 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Differential scanning calorimetry Polyol chemistry Chemical engineering Ultimate tensile strength Polymer chemistry Environmental Chemistry Fourier transform infrared spectroscopy 0210 nano-technology Polyurethane |
| Zdroj: | ACS Sustainable Chemistry & Engineering. 5:5793-5799 |
| ISSN: | 2168-0485 |
| Popis: | Polyurethane (PU) elastomers were prepared from 1-butene metathesized palm oil (PMTAG) polyols in order to study the effect of their molecular structure on the properties of polyurethanes. The chemical structure, thermal degradation, thermal properties, and tensile strength of the PUs were determined using Fourier transform infrared (FTIR), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), and texture analysis, respectively. Depending on the cross-linking density, which increases with increasing hydroxyl values of the polyols, the polyurethanes produced behave as rigid plastic or elastomeric rubbers. The highest hydroxyl polyol (OH value: 184 mg KOH/g) produced polyurethanes displaying a tensile strength of ∼18 MPa and displayed characteristics of a rigid plastic. On the other hand, the polyurethane prepared from the low hydroxyl polyol (OH value: 83 mg KOH/g) displayed more elastomeric characteristics with a lower tensile strength of ∼4.2 MPa an... |
| Databáze: | OpenAIRE |
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