Synthesis and polymerization of 1,5-bis(N-carbazolyl)pentane with its structural and behavioral highlights

Ahmad, Zahoor; Saeed, Bushra; Akhtar, Tashfeen; Ahmad, Jamal

doi:10.1007/s00289-019-02797-w

Cited by 2 publications

(2 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The FT-IR spectra of modified BNPP and PBNPP are shown in Figure 1 (A and B). According to Figure 1A, the disappearance of a band in the region from 3500 to 3100 cm -1 and an appearance of a band at 2926 cm -1 are indicating the replacement of an N-H bond by an N-C(aliphatic) bond [17,18]. The stretching vibrations appearing at 2926 cm -1 band indicate the CH2 attributed to the incorporation of the n-pentane space [19].…”

Section: Resultsmentioning

confidence: 96%

Designing the poly[1,5-bis(N-pyrrolyl)pentane as a new horizon of polypyrrole paradigm with its structural and optical highlights

et al. 2019

Self Cite

View full text Add to dashboard Cite

Poly [1,5-bis(N-pyrrolyl)pentane] (PBNPP) has been designed as a new addition to the modified polypyrrole family. This study entails the introduction of a pentane spacer between two pyrrole moieties and subsequently their oxidative polymerization under ambient conditions. The newly designed monomer and its polymer were fully characterized by FT-IR. The structural and optical behaviors were comparatively explored with reference to polypyrrole (Ppy), which was again prepared under same conditions. SEM was employed to visualize the morphology of PBNPP and Ppy comparatively. The data demonstrated the morphology of the PBNPP as spherical beads with a greater extent of surface porosity compared to Ppy, which possesses a compact granular form.The structural parameters were explored by XRD, where both possess crystallites of smaller size.Thermal behaviors were analyzed by TGA and DSC, where the newly designed polymer showed greater thermal stability and more plasticizing trend as compared to Ppy. Optical and HOMO-LUMO attributes have been characterized using UV-Vis. spectrophotometer and diffused reflectance spectroscopy (DRS). The PBNPP demonstrated greater molar absorption and lesser HOMO-LUMO gap as compared to Ppy. The PBNPP was proposed as a suitable candidate for photoconductivity compared with the Ppy. Thus, the polymer produced from the modified pyrrole is thermally more stable, has high plasticizing character, reflects greater optically sensitivity and possesses ease of electronic transition compared to its counterpart.

show abstract

Section: Resultsmentioning

confidence: 96%

Designing the poly[1,5-bis(N-pyrrolyl)pentane as a new horizon of polypyrrole paradigm with its structural and optical highlights

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…Therefore, the calcined particles have exhibited quite broader region of absorption. It was used for measuring the band gap of clearly crystallized samples using following equation, which is applied for Fe-400 and onwards samples [41].…”

Section: Optical Propertiesmentioning

confidence: 99%

Hierarchical synthesis of iron oxide nanoparticles by polyol cum Calcination Method and determination of its optical and magnetic behavior

Saddique

Ahmad

Hoskins

et al. 2020

Materials Chemistry and Physics

Self Cite

View full text Add to dashboard Cite

Iron oxide nanoparticles (NPs) were prepared using a polyol method from Fe(III) acetylacetonate in the presence of polyvinylpyrrolidone (PVP). These particles were subsequently calcined and annealed using a digitally controlled furnace from 200-1000 C producing crystallization. The morphology of the untreated nanoclusters and each calcined NP sample were observed under a scanning electron microscope (SEM) coupled with energy-dispersive X-ray (EDX) and their correlation explored. The SEM confirmed that the spherical NPs produced by the polyol method maintained their morphology during calcination at different temperatures. The extent of agglomeration was analyzed using dynamic light spectroscopy (DLS), which were measured as 1.0 µm. The effect of calcination on structural changes was monitored by X-ray diffraction (XRD), this revealed the presence of both hematite (α-Fe2O3) and maghemite (γ-Fe2O3) phases at low temperatures and the complete transformation into hematite at higher temperature. UV-Visible and fluorescent spectroscopy were used to analyze the optical properties and vibratory sample magnetometer (VSM) confirmed its paramagnetic characters.

show abstract

Synthesis and polymerization of 1,5-bis(N-carbazolyl)pentane with its structural and behavioral highlights

Cited by 2 publications

References 20 publications

Designing the poly[1,5-bis(N-pyrrolyl)pentane as a new horizon of polypyrrole paradigm with its structural and optical highlights

Designing the poly[1,5-bis(N-pyrrolyl)pentane as a new horizon of polypyrrole paradigm with its structural and optical highlights

Hierarchical synthesis of iron oxide nanoparticles by polyol cum Calcination Method and determination of its optical and magnetic behavior

Contact Info

Product

Resources

About