| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5200630 | Polymer Degradation and Stability | 2017 | 11 Pages |
Abstract
Raman spectra acquired on both, unaged and aged specimens did not show any difference concerning the pigment bands, whereas Py-GC/MS in double shot mode, revealed a decrease in the thermal stability of the pigments as well as of the acrylic binders identified (nBA/MMA, EA/MMA, nBA/Sty/2-EHA, and 2-EHA/MMA). Typical photooxidation products of acrylic binders, such as increased monomers and oligomers, related to side-chain scission as well as main-chain scission reactions, were characterized by means of Py-GC/MS and FTIR-ATR. Commercial paints revealed also whitening and chalking phenomena, mainly due to the presence of white fillers and additives in the paints formulations. These phenomena could be registered also by UV-Vis spectroscopy.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Marta Anghelone, Dubravka Jembrih-Simbürger, Valentina Pintus, Manfred Schreiner,