Synthesis of ABC 3-Miktoarm Star Terpolymers from a Trifunctional Initiator by Combining Ring-Opening Polymerization, Atom Transfer Radical Polymerization, and Nitroxide-Mediated Radical Polymerization
作者:Tao He、Dejin Li、Xia Sheng、Bin Zhao
DOI:10.1021/ma036010c
日期:2004.5.1
We report a new method to synthesize ABC 3-miktoarm star terpolymers by combining three different controlled/“living” polymerization techniques: ring-opening polymerization (ROP), atom transfer radical polymerization (ATRP), and nitroxide-mediated radical polymerization (NMRP). A trifunctional initiator bearing a hydroxy group, an ATRP initiator, and a NMRP initiator was designed and synthesized.
我们报告了一种通过结合三种不同的受控/“活性”聚合技术来合成ABC 3-三臂星形三元共聚物的新方法:开环聚合(ROP),原子转移自由基聚合(ATRP)和一氧化氮介导的自由基聚合(NMRP) 。设计并合成了带有羟基的三官能引发剂,ATRP引发剂和NMRP引发剂。通过1 H NMR,13 C NMR和质谱确认结构。然后,通过依次ε-己内酯的ROP,甲基丙烯酸甲酯的ATRP和苯乙烯的NMRP,由三官能引发剂制备ABC星型三元共聚物。GPC和动力学分析表明聚合是受控的。通过星型三元共聚物的断裂进一步证实了3-miktoarm星型结构。