Single chain self-assembly of well-defined heterotelechelic polymers generated by ATRP and click chemistry revisited
作者:Ozcan Altintas、Tobias Rudolph、Christopher Barner-Kowollik
DOI:10.1002/pola.24688
日期:2011.6.15
Well‐defined heterotelechelic poly(styrene) carrying thymine/diaminopyridine (DAP) (Mn,SEC = 9300, PDI = 1.04) and Hamilton wedge (HW)/cyanuric acid (CA) (Mn,SEC = 8200, PDI = 1.04) bonding motifs are prepared via a combination of controlled/living radical polymerization and copper catalyzed azide/alkyne “click” chemistry and are subsequently self‐assembled as single chains to emulate—on a simple level—the
带有胸腺嘧啶/二氨基吡啶(DAP)(M n,SEC = 9300,PDI = 1.04)和汉密尔顿楔形(HW)/氰尿酸(CA)(M n,SEC = 8200,PDI = 1.04 )的明确定义的杂苯乙稀聚苯乙烯)结合基序是通过控制/活性自由基聚合和铜催化的叠氮化物/炔“点击”化学的结合而制备的,随后以单链形式自组装以在简单的水平上模拟天然生物大分子的自折叠行为。氢核磁共振(1氘代二氯甲烷中的1 H NMR和动态光散射分析提供了证明异戊二烯聚合物的α-胸腺嘧啶和ω-DAP以及α-CA和ω-HW链端之间的氢键相互作用的证据,从而导致圆熵驱动的单链自组装。这项研究表明,选择NMR溶剂对于获得自组装结构的NMR光谱很重要。此外,对硬件的空间影响会影响自组装过程的效率。©2011 Wiley Periodicals,Inc. J Polym Sci A部分:Polym Chem,2011年