2-Azaallyl Anion Initiated Ring-Opening Polymerization of <i>N</i>-Sulfonyl Aziridines: One-Pot Synthesis of Primary Amine-Ended Telechelic Polyaziridines
作者:Ying Wang、Ruhan Yang、Wenyi Luo、Zhunxuan Li、Zhen Zhang、Chuande Wu、Nikos Hadjichristidis
DOI:10.1021/acs.macromol.9b00639
日期:2019.5.28
(KHMDS) in situ and used to initiate the ROP of aziridines leading to well-defined α-(Ph2C═N)-α′-aryl-ω-NH PAzs. Along with the diphenylketimine group (—N═C—Ph2), aryl functionalities, such as pyridine and triphenylphosphine moieties, can also be incorporated to the chain end. Chain extension has been applied for the synthesis of poly(N-sulfonyl aziridine)-block-poly(ε-caprolactone) (PAz-b-PCL) block
使用容易获得2- azaallyl阴离子作为引发剂,明确定义的伯胺端遥爪聚氮丙啶的一锅法合成(α-NH 2个PAzs)已经通过的开环聚合(ROP)实现Ñ磺酰基吖丙啶接着diphenylketimine部分(-N = C-PH的水解2)。2-氮杂烯丙基阴离子是由二苯基酮亚胺或N- [芳基-亚甲基]-α-苯基苯甲胺与双(三甲基甲硅烷基)酰胺钾(KHMDS)的原位反应合成的,并用于引发氮丙啶的ROP,从而形成明确的α - (PH 2 C = N)- α'芳基ω-NH PAzs。随着diphenylketimine基(-N = C-PH 2),芳基官能团,例如吡啶和三苯基膦部分,也可以结合到链端。链延长已用于合成聚(Ñ磺酰氮丙啶) -嵌段-聚(ε -己内酯)(PAz- b由伯胺端基的利用率-PCL)嵌段共聚物作为引发位点为ε的ROP 2-己酸锡(SnOct 2)催化己内酯。利用这种合成方法,已经通