## Abstract Bulk radical polymerization of styrene in the presence of nitronyl nitroxides (2‐(4‐substituted phenyl)‐4,4,5,5‐tetramethyl‐4,5‐dihydroimidazolyl‐1‐oxyl 3‐oxide) was studied. All nitronyl nitroxides, like other nitroxyl radicals such as 2,2,6,6‐tetramethylpiperidine 1‐oxyl radical (TEMP
“Living radical” polymerization of styrene in the presence of a nitroxide compound
✍ Scribed by Saíd Oulad Hammouch; Jean-Marie Catala
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 354 KB
- Volume
- 17
- Category
- Article
- ISSN
- 1022-1336
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✦ Synopsis
Abstract
The influence of parameters such as styrene dilution and active site concentration on the polymerization of styrene in the presence of a di‐tert‐butyl nitroxide adduct (A‐T) was examined. It is confirmed that the rate of styrene polymerization is independent of A‐T concentration, with no monomer dilution effect. An increase in radical concentration generated in the medium leads to faster propagation, but the molecular weight of the polymers formed is alway controlled by the A‐T concentration.
📜 SIMILAR VOLUMES
Radical polymerizations of styrene in the presence of C 60 have been conducted at 90°C in benzene using benzoyl peroxide (BPO) as initiator. The behaviors of C 60 are investigated by monitoring BPO concentration, C 60 content, and polymerization time. It is found that C 60 acts like a radical absorb
## Abstract Nitroxide‐mediated controlled/living radical precipitation polymerization of styrene in supercritical carbon dioxide has been performed using SG1 and AIBN as mediator and initiator, respectively. The equivalent bulk polymerization proceeded at a rate ≈1.58 times faster than the precipit