ROMP crosslinkers for the preparation of aliphatic aerogels
| Autor: | Patrick G. Campbell, Jeremy M. Lenhardt, Joseph H. Satcher, Roald N. Leif, Theodore F. Baumann, Sung Ho Kim, Marcus A. Worsley |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Materials science
Hydrogen Supercritical drying chemistry.chemical_element ROMP Condensed Matter Physics Electronic Optical and Magnetic Materials Catalysis chemistry.chemical_compound Monomer chemistry Polymer chemistry Materials Chemistry Ceramics and Composites Ring-opening metathesis polymerisation Carbon Norbornene |
| Zdroj: | Journal of Non-Crystalline Solids. 408:98-101 |
| ISSN: | 0022-3093 |
| DOI: | 10.1016/j.jnoncrysol.2014.10.019 |
| Popis: | Ring opening metathesis polymerization (ROMP) using Grubbs second generation catalyst generates aliphatic gels from norbornene based crosslinkable monomers with a functionality of 2 or 3. Supercritical drying of these gels (CO 2 ) leads to the formation of aerogels with densities as low as 4 mg mL − 1 . The microstructure was analyzed by SEM, and pore analyses by nitrogen adsorption. The use of crosslinkable monomers allows the straightforward synthesis of aerogels consisting of only carbon and hydrogen with C:H ratios up to ca. CH 1.58 with a finer microstructure than that of DCPD. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect