Highly-controlled regiospecific free-radical copolymerization of 1,3-diene monomers with sulfur dioxide.
Highly-controlled regiospecific free-radical copolymerization of 1,3-diene monomers with sulfur dioxide.
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DOI：
10.1039/c1ob05169e
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发表时间：
2011-05
影响因子：
3.2
通讯作者：
N. Tanaka;Eriko Sato;A. Matsumoto
中科院分区：
文献类型：
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作者：
N. Tanaka;Eriko Sato;A. Matsumoto
在-78 °C甲苯中，用氧化还原引发体系，使烷基取代的1，3-丁二烯与二氧化硫自由基共聚合，制得聚丁二烯（PB）。（二烯砜）由高度交替和1，4-区域特异性重复结构组成，与烷基取代基的位置和数目无关，并且通过使用模型反应的DFT计算很好地解释了通过自由基反应机制的高度区域选择性传播。
The free-radical copolymerization of alkyl-substituted 1,3-butadienes with sulfur dioxide using a redox initiating system in toluene at -78 °C produced poly(diene sulfone)s consisting of a highly alternating and 1,4-regiospecific repeating structure, irrespective of the position and number of alkyl substituents, and the highly regioselective propagation via a free radical reaction mechanism is well accounted for by DFT calculations using model reactions.