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Temperature-dependent modulation by biaryl-based monomers of the chain length and morphology of biphenyl-based supramolecular polymers
Chemical Science ( IF 7.6 ) Pub Date : 2021-09-06 , DOI: 10.1039/d1sc03974a
Tomokazu Iseki 1, 2 , Mathijs F J Mabesoone 1, 3 , Mark A J Koenis 4 , Brigitte A G Lamers 1 , Elisabeth Weyandt 1 , Lafayette N J de Windt 1 , Wybren Jan Buma 4, 5 , Anja R A Palmans 1 , E W Meijer 1
Affiliation  

Supramolecular copolymerizations offer attractive options to introduce structural and functional diversity in supramolecular polymer materials. Yet, general principles and structure–property relationships for rational comonomer design remain lacking. Here, we report on the supramolecular (co)aggregation of a phenylpyridine and bipyridine derivative of a recently reported biphenyl tetracarboxamide-based monomer. We show that both arylpyridines are poor monomers for supramolecular homopolymerizations. However, the two arylpyridines efficiently influence supramolecular polymers of a biphenyl-based polymer. The phenylpyridine derivatives primarily sequestrate biphenyl monomers, while the bipyridine intercalates into the polymers at high temperatures. Thereby, these two poorly homopolymerizing monomers allow for a fine control over the length of the biphenyl-based supramolecular polymers. As such, our results highlight the potential to control the structure and morphology of supramolecular polymers by tailoring the electronic properties of additives.

中文翻译:

联芳基单体对联苯基超分子聚合物链长和形态的温度依赖性调节

超分子共聚为在超分子聚合物材料中引入结构和功能多样性提供了有吸引力的选择。然而,仍然缺乏合理共聚单体设计的一般原则和结构-性能关系。在这里,我们报告了最近报道的基于联苯四甲酰胺的单体的苯基吡啶和联吡啶衍生物的超分子(共)聚集。我们表明这两种芳基吡啶都是用于超分子均聚的不良单体。然而,这两种芳基吡啶有效地影响了基于联苯的聚合物的超分子聚合物。苯基吡啶衍生物主要螯合联苯单体,而联吡啶在高温下嵌入聚合物中。从而,这两种均聚性差的单体允许对基于联苯的超分子聚合物的长度进行精细控制。因此,我们的结果突出了通过调整添加剂的电子特性来控制超分子聚合物结构和形态的潜力。
更新日期:2021-09-13
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