| Type |
Article |
| Date |
2014-04 |
| Language |
English |
| Author(s) |
Richaud Emmanuel1, Le Gac Pierre-Yves 2, Verdu Jacques1 |
| Affiliation(s) |
1 : Arts & Metiers ParisTech, CNRS, PIMM UMR 8006, F-75013 Paris, France.
2 : IFREMER Ctr Bretagne, Marine Struct Lab, F-29280 Plouzane, France. |
| Source |
Polymer Degradation And Stability (0141-3910) (Elsevier Sci Ltd), 2014-04 , Vol. 102 , P. 95-104 |
| DOI |
10.1016/j.polymdegradstab.2014.01.036 |
| WOS© Times Cited |
26 |
| Keyword(s) |
Polydicyclopentadiene, Thermal oxidation, Kinetics, Molecular mobility |
| Abstract |
Thermal ageing of thin films of unstabilized polydicyclopentadiene (pDCPD) at several temperatures ranging from 120 to 30°C was investigated by means of carbonyl build up by FTIR with ammonia derivatization, double bond titration, mass uptake measurement, hydroperoxides titration by iodometry and DSC coupled with sulfur dioxide treatment. In the temperature range under investigation, pDCPD is in glassy state and it oxidizes faster than common polymers oxidized at rubbery state (e.g. polydienic elastomers). Using the kinetic analysis, these results were ascribed to increased initiation rate due to catalyst residues, some possible intramolecular processes favoring propagation, or a very low termination rate of oxidation radical chains because of the control of termination reactions by macroradical diffusion. |
| Full Text |
| File |
Pages |
Size |
Access |
| Author's final draft |
40 |
988 KB |
Open access |
|
10 |
2 MB |
Access on demand |
|
