The anionic ring-opening polymerization of N-(methanesulfonyl)azetidine†,Polymer Chemistry

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The anionic ring-opening polymerization of N-(methanesulfonyl)azetidine†
Polymer Chemistry ( IF 4.1 ) Pub Date : 2018-02-26 00:00:00 , DOI: 10.1039/c8py00074c
Louis Reisman _{1,

2,

3,

4} , Elizabeth A. Rowe _{1,

2,

3,

4} , Qiaoli Liang _{1,

2,

3,

4} , Paul A. Rupar _{1,

2,

3,

4}

Affiliation

The anionic ring-opening polymerization (AROP) of an azetidine is reported for the first time. The AROP of N-(methanesulfonyl)azetidine (MsAzet), initiated by ⁿBuN(K)Ms, occurs in DMSO at elevated temperatures to form p(MsAzet) as a branched polymer. The polymerization is first order with respect to MsAzet and the number of active chain ends remains constant during the polymerization. Polymer branching occurs due to chain transfer through deprotonation of the methanesulfonyl group, which in turn can initiate a new polymer chain. Evidence for transfer to DMSO is also presented.

中文翻译：

N-（甲磺酰基）氮杂环丁烷† 的阴离子开环聚合

氮杂环丁烷的阴离子开环聚合（AROP）首次报道。由^n个BuN（K）Ms引发的N-（甲磺酰基）氮杂环丁烷（MsAzet）的AROP在DMSO中于升高的温度下形成p（MsAzet）作为支链聚合物。相对于MsAzet，聚合是一阶的，并且在聚合期间活性链末端的数目保持恒定。聚合物支化的发生是由于通过甲磺酰基基团的去质子化而进行的链转移，这反过来又可以引发新的聚合物链。还提供了转移到DMSO的证据。

更新日期：2018-02-26

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