Reisman Louis, Mbarushimana Canisius P, Cassidy S Joel, Rupar Paul A
Department of Chemistry, The University of Alabama, Tuscaloosa, Alabama 35487-0336, United States.
ACS Macro Lett. 2016 Oct 18;5(10):1137-1140. doi: 10.1021/acsmacrolett.6b00538. Epub 2016 Sep 22.
The anionic ring-opening copolymerization of 1-(methylsulfonyl)aziridine () and 1-(-butylsulfonyl)aziridine () produces a soluble random copolymer P(MsAz--BsAz), which can subsequently be converted to linear poly(ethylenimine) (lPEI). The copolymerization of and is living and allows for the synthesis of copolymers with low molecular weight distributions. Sequential anionic polymerization of and with 2-methyl-1-(methylsulfonyl)aziridine () creates P(MsAz--BsAz)--P(MeMsAz). Removal of the sulfonyl groups from P(MsAz--BsAz)--P(MsMAz) gives lPEI--poly(propylenimine). For the first time, lPEI can be synthesized by a controlled anionic polymerization.
1-(甲基磺酰基)氮丙啶（）与1-(丁基磺酰基)氮丙啶（）的阴离子开环共聚反应生成了一种可溶性无规共聚物P(MsAz--BsAz)，该共聚物随后可转化为线性聚乙烯亚胺(lPEI)。与的共聚反应具有活性，能够合成具有低分子量分布的共聚物。与2-甲基-1-(甲基磺酰基)氮丙啶（）进行和的顺序阴离子聚合反应，生成P(MsAz--BsAz)--P(MeMsAz)。从P(MsAz--BsAz)--P(MsMAz)中去除磺酰基得到lPEI--聚(丙烯亚胺)。首次通过可控阴离子聚合反应合成了lPEI。
