Details
| Original language | English |
|---|---|
| Pages (from-to) | 192-198 |
| Number of pages | 7 |
| Journal | KGK Kautschuk Gummi Kunststoffe |
| Volume | 60 |
| Issue number | 4 |
| Publication status | Published - Apr 2007 |
| Externally published | Yes |
Abstract
The investigations of thermal-oxidative aging on polydienes with systematic varied microstructure showed that high concentrations of double bonds in the polymer backbone play the significant role. From the shift of OIT-values it is observed, that styrene units have a relatively more stabilizing effect than vinyl units. Semi-quantitative infrared spectroscopic measurements taken during the course of CL analysis show much higher reactivity for 1,4-butadiene-units in comparison to vinyl. The kinetic evaluation of the CL curves results in rising reaction rate constants with increasing temperature and leads to activation energy values consistent with the reactivity of the polymers. In the investigations on the influence of processing it could be observed, that the raw polymer stabilizer is consumed during milling due to the effect of temperature, shearing and oxygen.
Keywords
- Chemiluminescence, Polydienes, Thermal oxidative aging
ASJC Scopus subject areas
- Engineering(all)
- Mechanical Engineering
- Materials Science(all)
- Polymers and Plastics
- Engineering(all)
- Industrial and Manufacturing Engineering
- Materials Science(all)
- Materials Chemistry
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In: KGK Kautschuk Gummi Kunststoffe, Vol. 60, No. 4, 04.2007, p. 192-198.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Thermal oxidation aging of rubbers
T2 - Characterization by chemiluminescence
AU - Santoso, M.
AU - Giese, U.
AU - Schuster, R. H.
PY - 2007/4
Y1 - 2007/4
N2 - The investigations of thermal-oxidative aging on polydienes with systematic varied microstructure showed that high concentrations of double bonds in the polymer backbone play the significant role. From the shift of OIT-values it is observed, that styrene units have a relatively more stabilizing effect than vinyl units. Semi-quantitative infrared spectroscopic measurements taken during the course of CL analysis show much higher reactivity for 1,4-butadiene-units in comparison to vinyl. The kinetic evaluation of the CL curves results in rising reaction rate constants with increasing temperature and leads to activation energy values consistent with the reactivity of the polymers. In the investigations on the influence of processing it could be observed, that the raw polymer stabilizer is consumed during milling due to the effect of temperature, shearing and oxygen.
AB - The investigations of thermal-oxidative aging on polydienes with systematic varied microstructure showed that high concentrations of double bonds in the polymer backbone play the significant role. From the shift of OIT-values it is observed, that styrene units have a relatively more stabilizing effect than vinyl units. Semi-quantitative infrared spectroscopic measurements taken during the course of CL analysis show much higher reactivity for 1,4-butadiene-units in comparison to vinyl. The kinetic evaluation of the CL curves results in rising reaction rate constants with increasing temperature and leads to activation energy values consistent with the reactivity of the polymers. In the investigations on the influence of processing it could be observed, that the raw polymer stabilizer is consumed during milling due to the effect of temperature, shearing and oxygen.
KW - Chemiluminescence
KW - Polydienes
KW - Thermal oxidative aging
UR - http://www.scopus.com/inward/record.url?scp=34247558255&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:34247558255
VL - 60
SP - 192
EP - 198
JO - KGK Kautschuk Gummi Kunststoffe
JF - KGK Kautschuk Gummi Kunststoffe
SN - 0948-3276
IS - 4
ER -