Stable free radical polymerization of styrene with 4-sulphonate-2,2,6,6-tetramethylpiperidine-N-oxyl as mediators
โ Scribed by Jieai Li; Zhengbiao Zhang; Xiulin Zhu; Jian Zhu; Zhenping Cheng; Wenjian Xu
- Publisher
- Springer
- Year
- 2009
- Tongue
- English
- Weight
- 474 KB
- Volume
- 64
- Category
- Article
- ISSN
- 0170-0839
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๐ SIMILAR VOLUMES
Radical polymerization of 2-, 3-, and 4-chlorostyrenes (ClSts) was investigated with benzoyl peroxide (BPO) as an initiator, in the presence of 4-methoxy-2,2,6,6tetramethylpiperidine-1-oxyl (MTEMPO). The polymerization was performed in bulk for 3.5 h at 95ะC and then continued for a defined time at
The exposure of 4-hydroxy-2,2,6,6-tetramethylpiperidine-N-oxyl (TEMPOL) to hydroxyl radical ((.)OH) led to the appearance of a new triplet ESR signal along with a reduction in the intensity of the TEMPOL signal. The observed spectrum was in good agreement with the spectrum simulated with 4-oxo-2,2,6