Improving the picture of atomic structure in nonoriented polymer domains using the pair distribution function: A study of polyamide 6,Journal of Polymer Science

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Improving the picture of atomic structure in nonoriented polymer domains using the pair distribution function: A study of polyamide 6
Journal of Polymer Science ( IF 3.9 ) Pub Date : 2020-06-03 , DOI: 10.1002/pol.20190272
Maxwell W. Terban ₁ , Alexander M. Pütz _{1,

2} , Gökcen Savasci _{1,

2} , Ute Heinemeyer ₃ , Bernd Hinrichsen ₃ , Philippe Desbois ₃ , Robert E. Dinnebier ₁

Affiliation

Investigations of the atomic structures within polyamides started over 80 years ago and continue today. These weakly ordered materials diffract X‐rays poorly and typically require postprocessing to obtain idealized samples for structural studies. An important goal remains to develop techniques to study the local structure in its natural state, with atomic resolution, and with sensitivity to subtle changes due to synthesis conditions or other technologically relevant processing procedures. Here, we compare the structures of as‐produced, nonoriented polyamide 6 ([C₆H₁₁NO]_n) from both hydrolytic and anionic processes. A total scattering pair distribution function approach is used to elucidate information about the atomic bonding, molecular conformation, chain packing, crystallite size, and ratio of ordered to disordered domain content. The results are compared with those from standard analytical methods.

中文翻译：

使用成对分布函数改善无取向聚合物域中原子结构的图像：聚酰胺6的研究

聚酰胺内部原子结构的研究始于80年前，并一直持续到今天。这些弱有序的材料对X射线的衍射不佳，通常需要后处理才能获得理想的样品进行结构研究。一个重要的目标仍然是开发技术，以自然状态研究局部结构，具有原子分辨率，并且对由于合成条件或其他技术相关的加工程序而引起的细微变化敏感。在这里，我们比较了非定向聚酰胺6（[C ₆ H ₁₁ NO] _n）来自水解和阴离子过程。总散射对分布函数方法用于阐明有关原子键，分子构象，链堆积，微晶尺寸以及有序与无序域含量之比的信息。将结果与标准分析方法的结果进行比较。

更新日期：2020-06-03

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