期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 735, 期 -, 页码 821-827出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2017.11.145
关键词
Insoluble sulfur; Olefin stabilizers; Acid stabilizers
资金
- Shanxi coal-based key scientific and technological projects [MD2014-09, MD2014-10]
The effects of the polymerization conditions on the yield of insoluble sulfur were investigated by using olefin, such as the 1,-dodecene, 1,-tetradecene, 1,-octadecene as well as acids, such as the salicylic acid, lauric acid and the oleic acid as polymerization stabilizers. The properties of the as-prepared insoluble sulfur were characterized by mu-Raman spectrometer and differential scanning calorimetry (DSC). The results demonstrated that both the olefin and acid stabilizers could couple with the end groups of the IS, thus improved the thermal stability of the IS, and the olefin stabilizers were superior to the acid stabilizers. The stabilizing effect of oleic acid was the best for the acid stabilizers, and the C=C in the oleic acid played a crucial role in the stabilization of the IS. (C) 2017 Elsevier B.V. All rights reserved.
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