Preparation and characterisation of surface roughened PMMA electrospun nanofibers from PEO - PMMA polymer blend nanofibers

Philip, Princy; Jose, Tomlal; Chacko, Jacob K.; Philip, Koshi; Thomas, Polly

doi:10.1016/j.polymertesting.2019.01.009

Cited by 47 publications

(52 citation statements)

References 37 publications

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“…X‐ray diffractometer (XRD) spectra of the pure, surface roughened, coaxial hollow PMMA nanofibers and those incorporated with gold nanoparticles are shown in Figure 6. It has already given that pure PMMA nanofibers show XRD peaks at 24.18°, 43.19°, and 63.1° 42 but here it is observed that they are shifted to 23.7°, 41.5°, and 62.5°, respectively after incorporating with gold nanoparticles. The shift in peaks is due to the interaction with AuNPs and that supports FTIR results.…”

Section: Resultsmentioning

confidence: 45%

“…Surface roughened PMMA nanofibers show peaks at 2921, 1728, 1145, 900, and 760 cm −1 , which, respectively, represents PMMA CH stretching band, PMMA CO band, COC band, CC stretching band and CO in plane bending as mentioned 42 . Surface roughened PMMA nanofibers incorporated with AuNPs also show characteristic peaks of both PMMA and AuNPs.…”

Section: Resultsmentioning

confidence: 75%

“…It is given that, pristine PMMA show peaks at 2949 and 1730 cm −1 , which indicates the CH stretching band and CO group in PMMA, respectively. PMMA peaks of HCH bend, COC stretching, CC stretching, CO in plane bending and CO out of plane bending are obtained at 1435, 1149, 990, 807, and 751 cm −1 , respectively 42 …”

Section: Resultsmentioning

confidence: 97%

“…Selective dissolution of PEO from PEO–PMMA nanofibers is carried out using deionized water at 60°C in both surface roughened and coaxial hollow nanofibers. The detailed procedure for the preparation of pure, surface roughened and coaxial hollow PMMA nanofibers and the analyses of each of them are given in our previously published papers 32,42 …”

Section: Methodsmentioning

confidence: 99%

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Structurally modified poly(methyl methacrylate) electrospun nanofibers as better host matrix for noble metal nanoparticles

Philip

Jose

Parameswaran

et al. 2020

J of Applied Polymer Sci

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Poly(methyl methacrylate) (PMMA) nanofibers are proved as good host matrix for various nanomaterials. Here, the possibilities offered by the process of electrospinning are exploited for the production of pure and structurally modified surface roughened and coaxial hollow PMMA electrospun nanofibers with unique advantages and surface characteristics, which is proved through various structural analyses. The host matrix nature of these pure and structurally modified surface roughened and coaxial hollow PMMA nanofibers to gold nanoparticles (AuNPs) are proved through different structural and morphological analyses. The host matrix nature of pure and structurally modified surface roughened and coaxial hollow PMMA nanofibers to AuNPs are compared with that of pure PMMA nanofibers by comparing their structural and optical properties. It is found here that, the surface roughened PMMA nanofibers act as better host matrix with more uniform distribution of particles and intensity enhancement than the pure and coaxial hollow PMMA nanofibers. Pure and coaxial hollow PMMA nanofibers show almost two times enhancement in intensity while the surface roughened PMMA nanofibers show almost five times enhancement in intensity after incorporating AuNPs. The host matrix nature of PMMA nanofibers is thus proved to be improved by making structural modifications on PMMA nanofibers in a simple and cost‐effective way. This makes them more suitable and adaptable in their applications. This superior property of surface roughened PMMA nanofibers over pure PMMA nanofibers can be used in all the application fields of PMMA nanofibers like optical works, catalytically supporting agents, antibacterial supporting systems and so on.

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Section: Resultsmentioning

confidence: 45%

Section: Resultsmentioning

confidence: 75%

Section: Resultsmentioning

confidence: 97%

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Structurally modified poly(methyl methacrylate) electrospun nanofibers as better host matrix for noble metal nanoparticles

Philip

Jose

Parameswaran

et al. 2020

J of Applied Polymer Sci

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“…This exfoliated structure shows that the amorphous structure of PMMA is supported by compositions added to the end product obtained. 8,18 The compounds showed an XRD pattern characteristic of partially crystalline materials (Figure 3(b)), with only one diffraction peak at 2θ = 44.2°. The amount of quaternary pyridine group in the Compound 2 sample was increased.…”

Section: Resultsmentioning

confidence: 99%

Biocidal activity of curcumin and cationic polymer possessing composites

Eren

Baysal

Doğan

2020

Journal of Bioactive and Compatible Polymers

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There is a growing interest in new type of biocidal compounds with antibacterial properties against bacteria. In this study, new antibacterial synthetic materials bearing curcumin and cationic polymers were synthesized. In the synthesis stage, the methacrylate functional cationic monomer was synthesized via the Michael addition route by using 3-acryloxy-2-hydroxypropyl methacrylate and 3-amino pyridine to obtain Monomer 1. Monomer 1 was further quaternized with hexyl bromide to obtain a cationic methacrylate functional monomer. Free-radical polymerization of Monomer 1 and methyl acrylate was conducted in the presence of azobisisobutyronitrile under dimethylformamide solvent. The composite formulation was conducted by using turmeric extract Curcuma longa (curcumin), hydroxyapatite, montmorillonite, and silver nitrate. The materials were analyzed by using the methods of X-ray diffraction, nuclear magnetic resonance, Fourier transform infrared spectroscopy, and scanning electron microscopy. The biocidal activities against the bacteria Escherichia coli, Listeria monocytogenes, Salmonella, and Staphylococcus aureus were analyzed using agar well diffusion method. From the Fourier transform infrared, X-ray diffraction, and scanning electron microscopy analysis results of the synthesized nanocomposites, it is seen that they form strong connections with the components added to the composites and form an exfoliated structure. According to the antibacterial analysis results, the nanocomposites obtained have showed a strong antibacterial resistance against E.coli, L.monocytogenes, Salmonella, and S. aureus bacteria, and the high inhibition zone areas were obtained.

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Structurally modified electrospun poly(methyl methacrylate) nanofibers as advanced host matrices for PbS quantum dots

Philip

Jose

Vanchippurackal

2021

J of Applied Polymer Sci

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The present work deals with the studies of the host matrix nature of pure and structurally modified surface roughened and coaxial hollow electrospun poly(methyl methacrylate) (PMMA) nanofibers to lead sulphide (PbS) quantum dots. The various structural and molecular analyses conducted on these samples proved the advancements and structural modifications made in the properties of pure PMMA nanofibers by electrospinning and selective dissolution. The successful incorporation of the quantum dots to pure and structurally modified PMMA nanofibers and hence the host matrix nature of these nanofibers is proved by different spectral analyses of the samples. The coaxial hollow PMMA nanofibers are found to be the best host matrix among these PMMA nanofibers as proved by the optical studies of the samples. Photoluminescence analyses of the samples showed the influence of these quantum dots on the optical properties of PMMA nanofibers. It is observed here that, the quantum dots enhance the intensity of coaxial hollow PMMA nanofibers to about four times than its virgin form. The pure and structurally modified PMMA nanofibers incorporated with PbS quantum dots are proved to be efficient for the degradation of methylene blue dye where coaxial hollow PMMA nanofibers incorporated with PbS quantum dots is the best.

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Preparation and characterisation of surface roughened PMMA electrospun nanofibers from PEO - PMMA polymer blend nanofibers

Cited by 47 publications

References 37 publications

Structurally modified poly(methyl methacrylate) electrospun nanofibers as better host matrix for noble metal nanoparticles

Structurally modified poly(methyl methacrylate) electrospun nanofibers as better host matrix for noble metal nanoparticles

Biocidal activity of curcumin and cationic polymer possessing composites

Structurally modified electrospun poly(methyl methacrylate) nanofibers as advanced host matrices for PbS quantum dots

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