Synthesis and Characterization of Luminescent Rod–Coil Block Copolymers by Atom Transfer Radical Polymerization: Utilization of Novel End-Functionalized Terfluorenes as Macroinitiators
作者:Panagiotis K. Tsolakis、Joannis K. Kallitsis
DOI:10.1002/chem.200390115
日期:2003.2.17
Two novel, rigid, photoluminescent, substituted terfluorene derivatives were synthesized by utilizing direct bromination and Suzuki coupling reactions. These oligomers were used as initiators for the atom transfer radical polymerization (ATRP) of styrene and tert-butyl acrylate. Thus, diblock and triblock rod-coil block copolymers were prepared with well-defined structure, as far as their size and
利用直接溴化和Suzuki偶联反应合成了两种新颖的,刚性的,光致发光的,取代的三芴衍生物。这些低聚物用作苯乙烯和丙烯酸叔丁酯的原子转移自由基聚合(ATRP)的引发剂。因此,就其尺寸和形状而言,制备了具有明确结构的二嵌段和三嵌段杆-线圈嵌段共聚物。在大多数情况下,获得的分子量高达约21000,多分散指数不超过1.5。共聚物在溶液中发出蓝光,当从溶液转变为固态时,它们的发光性能实际上保持不变。即使在高温下退火后,在固态下也未观察到基态聚集或准分子形成。