One pot synthesis of a poly(3-hexylthiophene)-b-poly(quinoxaline-2,3-diyl) rod–rod diblock copolymer and its tunable light emission properties
One pot synthesis of a poly(3-hexylthiophene)-b-poly(quinoxaline-2,3-diyl) rod–rod diblock copolymer and its tunable light emission properties
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DOI：
10.1039/c3py00708a
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发表时间：
2013-07
影响因子：
4.6
通讯作者：
Zongquan Wu;Deng-Feng Liu;Ying Wang;Na Liu;Jun Yin;Yuanyuan Zhu;L. Qiu;Yunsheng Ding
中科院分区：
文献类型：
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作者：
Zongquan Wu;Deng-Feng Liu;Ying Wang;Na Liu;Jun Yin;Yuanyuan Zhu;L. Qiu;Yunsheng Ding
在室温下，以镍(II)络合物为单一催化剂，通过连续单体加成的方法在一锅中合成了一系列poly(3-hexylthiophene)-b-poly(quinoxaline-2，3-diyl)棒-棒两嵌段共聚物。嵌段共聚以活性/可控的扩链方式进行，得到了相对分子质量可控、相对分子质量分布窄、组成可调的poly(3-hexylthiophene)-b-poly(quinoxaline-2，3-diyl)嵌段共聚物。合成的嵌段共聚物在氯仿和甲醇的混合溶剂中自组装成定义良好的囊泡超分子结构。溶液中的组装诱导了独特的光发射，光发射的颜色从红色到紫色和蓝色，取决于所使用的溶剂。
A range of poly(3-hexylthiophene)-b-poly(quinoxaline-2,3-diyl) rod–rod diblock copolymers was synthesized in one pot via sequential monomer addition with a Ni(II) complex as a single catalyst at room temperature. The block copolymerization was proved to proceed in a living/controlled chain-extension manner, affording well-defined poly(3-hexylthiophene)-b-poly(quinoxaline-2,3-diyl) block copolymers with controlled molecular weights, narrow molecular weight distributions, and tunable compositions. The synthesized block copolymer was found to self-assemble into well-defined vesicle supramolecular structures in mixed solvents of chloroform and methanol. The assembly in solution induced unique light emissions with the light emission color varying from red to purple and blue depending on solvents used.