Tunable Control of the Hydrophilicity and Wettability of Conjugated Polymers by a Postpolymerization Modification Approach.,Macromolecular Bioscience

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Tunable Control of the Hydrophilicity and Wettability of Conjugated Polymers by a Postpolymerization Modification Approach.
Macromolecular Bioscience ( IF 4.4 ) Pub Date : 2020-06-15 , DOI: 10.1002/mabi.202000087
Shengyu Cong ₁ , Adam Creamer ₁ , Zhuping Fei ₂ , Sam A J Hillman ₃ , Charlotte Rapley ₁ , Jenny Nelson ₃ , Martin Heeney ₁

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A facile method to prepare hydrophilic polymers by a postpolymerization nucleophillic aromatic substitution reaction of fluoride on an emissive conjugated polymer (CP) backbone is reported. Quantitative functionalization by a series of monofunctionalized ethylene glycol oligomers, from dimer to hexamer, as well as with high molecular weight polyethylene glycol is demonstrated. The length of the ethylene glycol sidechains is shown to have a direct impact on the surface wettability of the polymer, as well as its solubility in polar solvents. However, the energetics and band gap of the CPs remain essentially constant. This method therefore allows an easy way to modulate the wettability and solubility of CP materials for a diverse series of applications.

中文翻译：

通过聚合后改性方法对共轭聚合物的亲水性和润湿性进行可调控制。

报道了一种通过氟化物在发射共轭聚合物 (CP) 主链上的后聚合亲核芳香取代反应制备亲水性聚合物的简便方法。展示了一系列单官能化乙二醇低聚物（从二聚体到六聚体）以及高分子量聚乙二醇的定量功能化。乙二醇侧链的长度显示出对聚合物的表面润湿性及其在极性溶剂中的溶解度有直接影响。然而，CP 的能量和带隙基本保持不变。因此，该方法提供了一种简单的方法来调节 CP 材料的润湿性和溶解性，适用于各种应用。

更新日期：2020-06-15

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