Formation of square prism-shaped poly(o-phenylenediamine) fibers triggered by high ionic strength

Jiang Kunpeng; Ma Shenghua; Zhang Ying; Han Xiaojun

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Formation of square prism-shaped poly(o-phenylenediamine) fibers triggered by high ionic strength

机译：高离子强度触发形成方形棱柱形聚邻苯二胺纤维

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A simple bottom-up method to fabricate novel square prism-shaped poly(o-phenylenediamine) (PoPD) hierarchical fibers is presented. PoPD oligomers obtained by H2O2 oxidizing o-phenylenediamine (oPD) monomers were triggered to aggregate into fibers by high salt solution. The fibers were fully characterized by SEM, FTIR, XRD, UV-vis spectra, and thermogravimetric techniques. Their stability when treated with high temperature in water, acidic solution and ethanol solution was investigated, which showed three different disassembly patterns due to disruption of non-covalent interactions inside the fibers. It was very interesting that PoPD fibers exhibited a strong fluorescence property (emission at 527 nm) after alkali treatment.

机译：提出了一种简单的自下而上的方法来制造新颖的方形棱柱形聚（邻苯二胺）（PoPD）分层纤维。通过H2O2氧化邻苯二胺（oPD）单体获得的PoPD低聚物被高盐溶液触发聚集成纤维。通过SEM，FTIR，XRD，UV-可见光谱和热重技术对纤维进行了充分表征。研究了它们在水，酸性溶液和乙醇溶液中高温处理后的稳定性，由于破坏了纤维内部非共价相互作用，显示出三种不同的分解模式。有趣的是，经过碱处理后，PoPD纤维表现出很强的荧光特性（在527 nm处发射）。

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《RSC Advances》 |2016年第26期|共5页
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Jiang Kunpeng; Ma Shenghua; Zhang Ying; Han Xiaojun;
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1. Formation of square prism-shaped poly(o-phenylenediamine) fibers triggered by high ionic strength [J] . Jiang Kunpeng, Ma Shenghua, Zhang Ying, RSC Advances . 2016,第26期

机译：高离子强度触发形成方形棱柱形聚邻苯二胺纤维
2. Perturbation of the conformation of poly (dA-dT). poly (dA-dT) in the presence of poly-1-lysine at low ionic strength [J] . Atreyi M., Kumar G. Suresh, Rao M. V. R. Current science . 1987,第04期

机译：聚（dA-dT）构象的扰动。在低离子强度的聚-1-赖氨酸存在下的聚（dA-dT）
3. Study of the influence of the ionic strength on complex-formation of ethidium bromide with poly(rA)-poly(rU) [J] . Vardevanyan Poghos O., Antonyan Ara P., Parsadanyan Marine A., Journal of Biomolecular Structure and Dynamics . 2020,第7a8期

机译：离子强度对溴化乙醚复合溴化乙醚的影响的研究 - 聚（Ru）
4. Formation and mechanical properties of high-strength poly(3-hydroxybutyrate-co-hydroxyvalerate) fibers [C] . LUAN Yixian, GU Chunju, WU Wenhua, International Conference on Advanced Fibers and Polymer Materials;ICAFPM . 2009

机译：高强度聚3-羟基丁酸酯-共-羟基戊酸酯纤维的形成和力学性能
5. THE STRENGTH OF CHEMICALLY BONDED NONWOVEN FABRICS AS A FUNCTION OF THE IONIC CHARGES OF BINDERS AND FIBERS. [D] . KALPAGIAN, HARRY S. 1984

机译：化学键合非织造布的强度作为粘合剂和纤维离子电荷的作用。
6. X-ray diffraction evidence for cross-bridge formation in relaxed muscle fibers at various ionic strengths. [O] . B Brenner, L C Yu, R J Podolsky 1984

机译：X射线衍射证据表明在各种离子强度下松弛肌纤维中会形成跨桥。
7. X-ray diffraction evidence for cross-bridge formation in relaxed muscle fibers at various ionic strengths. [O] . Brenner, B, Yu, L C, Podolsky, R J 1984

机译：X射线衍射证据表明，在各种离子强度下，松弛肌纤维中会形成跨桥。

Formation of square prism-shaped poly(o-phenylenediamine) fibers triggered by high ionic strength

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