Abstract
Thermal degradation and stabilization of polyethylene glycol (PEG) with a molecular weight of 6000 have been investigated in order to develop PEG as a thermal energy storage material. Low molecular weight esters including formic esters were produced as the main products of the thermal degradation of PEG at 80 C in air. No degradation was observed for PEG aged in a vacuum. The mechanism of thermal degradation is found to be the random chain scission of the main chain. Thermal degradation could be suppressed by adding 2,2′-methylene-bis(4-methyl-6-tert-butylphenol) (MBMTBP) as an antioxidant. In the stabilizing process. MBMTBP itself is transformed to dimers or trimers.
| Original language | English |
|---|---|
| Pages (from-to) | 317-323 |
| Number of pages | 7 |
| Journal | Polymer |
| Volume | 38 |
| Issue number | 2 |
| Publication status | Published - 1997 Dec 1 |
| Externally published | Yes |
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Keywords
- Degradation mechanism
- PEG 6000
- Phase change material
ASJC Scopus subject areas
- Organic Chemistry
- Polymers and Plastics
Cite this
Thermal/oxidative degradation and stabilization of polyethylene glycol. / Han, Seongok; Kim, Chongyoup; Kwon, Dongsook.
In: Polymer, Vol. 38, No. 2, 01.12.1997, p. 317-323.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Thermal/oxidative degradation and stabilization of polyethylene glycol
AU - Han, Seongok
AU - Kim, Chongyoup
AU - Kwon, Dongsook
PY - 1997/12/1
Y1 - 1997/12/1
N2 - Thermal degradation and stabilization of polyethylene glycol (PEG) with a molecular weight of 6000 have been investigated in order to develop PEG as a thermal energy storage material. Low molecular weight esters including formic esters were produced as the main products of the thermal degradation of PEG at 80 C in air. No degradation was observed for PEG aged in a vacuum. The mechanism of thermal degradation is found to be the random chain scission of the main chain. Thermal degradation could be suppressed by adding 2,2′-methylene-bis(4-methyl-6-tert-butylphenol) (MBMTBP) as an antioxidant. In the stabilizing process. MBMTBP itself is transformed to dimers or trimers.
AB - Thermal degradation and stabilization of polyethylene glycol (PEG) with a molecular weight of 6000 have been investigated in order to develop PEG as a thermal energy storage material. Low molecular weight esters including formic esters were produced as the main products of the thermal degradation of PEG at 80 C in air. No degradation was observed for PEG aged in a vacuum. The mechanism of thermal degradation is found to be the random chain scission of the main chain. Thermal degradation could be suppressed by adding 2,2′-methylene-bis(4-methyl-6-tert-butylphenol) (MBMTBP) as an antioxidant. In the stabilizing process. MBMTBP itself is transformed to dimers or trimers.
KW - Degradation mechanism
KW - PEG 6000
KW - Phase change material
UR - http://www.scopus.com/inward/record.url?scp=0030862261&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0030862261&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0030862261
VL - 38
SP - 317
EP - 323
JO - Polymer (United Kingdom)
JF - Polymer (United Kingdom)
SN - 0032-3861
IS - 2
ER -