2-Vinylpyridine-co-N-vinyl-2-pyrrolidone and 4-vinylpyridine-co-N-vinyl-2-pyrrolidone copolymers: synthesis and reactivity ratios

Gatica, Nicolás; Gargallo, Ligia; Radić, Deodato

doi:10.1002/(sici)1097-0126(199803)45:3<285::aid-pi933>3.0.co;2-e

Cited by 28 publications

(13 citation statements)

References 3 publications

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“…The reactivity ratios of comonomers 4VP and NVP are r4vp = 9.06 and rnvp = 0.05 [23,24], respectively. The significant difference of reactivities can hinder the less active monomer NVP from participating at the early stage of copolymerization.…”

Section: Copolymerization Of 4vp and Nvpsupporting

confidence: 81%

Antibacterial/Antiviral Property and Mechanism of Dual-Functional Quaternized Pyridinium-type Copolymer

Xue

Xiao

2015

Polymers

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Due to the massive outbreaks of pathogen-caused diseases and the increase of drug-resistant pathogens, there is a particular interest in the development of novel disinfection agents with broad-spectrum antipathogenic activity.In the present study, water-soluble pyridinium-type polyvinylpyrrolidones with different counter anions were prepared. Structural characterization was conducted via 13 C-1 H heteronuclear single quantum coherence spectroscopy, static light scattering, UV spectrometry and apparent charge density. The influence of counter anion and polymer compositions on the antibacterial activity was studied against Staphylococcus aureus and Escherichia coli. Atomic force microscopy (AFM) was applied for tracking the morphological alterations in bacterial cells induced by prepared polycations. It was found that the exposure of bacteria to the polycations resulted in the destruction of cell membranes and the leakage of cytoplasm. The antiviral activity of pyridinium-type polycations against enveloped influenza virus was evaluated via a plaque assay. The action mode against enveloped virus was depicted to rationalize the antiviral mechanism.

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Section: Copolymerization Of 4vp and Nvpsupporting

confidence: 81%

Antibacterial/Antiviral Property and Mechanism of Dual-Functional Quaternized Pyridinium-type Copolymer

Xue

Xiao

2015

Polymers

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“…The amide group of NVP has a high affinity for several small and large molecules that are known as good hydrogen-bond acceptors and has been copolymerized with a variety of monomers [18][19][20][21][22]. Homo and copolymers of N-vinylpyrrolidone (VP) are of considerable academic and industrial interest due to their unique properties, allowing the use of these polymer systems in lithography as light sensitive thin coatings for printing plates, for the preparation of separating membranes for ultra filtration, biocompatible polymers with low toxicity and carriers of biologically active compounds, sorbents, coagulants and flocculants [23][24][25][26][27]. Copolymer of 2-hydroxymethylmethacrylate (HEMA) and N-vinylpyrrolidone is used in pharmaceutical application, such as, cancer therapy [28].…”

Section: Introductionsupporting

confidence: 86%

Synthesis, Characterisation and Antibacterial Activity of Copolymer (N-Vinylpyrrolidone – Maleic Anhydride) With N- Diethylethanolamine

Hemalatha¹,

Veeraiah²,

Prasannakumar³

et al. 2014

IJRET

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“…On the other hand, proton hopping in the 2VP system is hindered sterically by the proximity of the backbone chain and any secondary effects arising from non-ideal conformations [42]. Indeed, FTIR result shows that the protonation of 4VP proceeds much more readily, as evidenced by a much stronger stretching band at 1,630 cm ±1 .…”

Section: Proton Conductivity and Water Uptakementioning

confidence: 99%

Water Free Operated Phosphoric Acid Doped Radiation‐Grafted Proton Conducting Membranes for High Temperature Polymer Electrolyte Membrane Fuel Cells

et al. 2014

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The present study uses the radiation‐induced grafting method and applies it onto poly(ethylene‐alt‐tetrafluoroethylene) (ETFE) for the synthesis of proton‐exchange membranes by using monomers 4‐vinyl pyridine (4VP), 2‐vinyl pyridine (2VP), N‐vinyl‐2‐pyrrolidone (NVP) followed by phosphoric acid doping. Phosphoric acid that provides Grotthuss mechanism in proton mobilization is used to transform the graft copolymers to a high temperature membrane state. Resultant proton‐exchange membranes are verified with their proton conductivity, water uptake, mechanical and thermal properties, and phosphorous distribution as ex situ characterization. Our most important finding as a novelty in literature is that ETFE‐g‐P4VP phosphoric acid doped proton‐exchange membranes exhibit proton conductivities as 66 mS cm–1 at 130 °C, 53 mS cm–1 at 120 °C, 45 mS cm–1 at 80 °C at RH 100% and 55 mS cm–1 at 130 °C, 40 mS cm–1 at 120 °C, 35 mS cm–1 at 80 °C at dry conditions. Moreover, ETFE‐g‐P4VP membranes still conserves the mechanical properties, i.e., tensile strength up to 48 MPa. ETFE‐g‐P4VP membranes were tested in PEMFC at 80, 100, and 120 °C and RH <2% and exhibit promising performance as an alternative to commercial Nafion® membranes. The single cell testing performance of ETFE‐g‐P4VP membranes is presented for the first time in literature in our study.

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2-Vinylpyridine-co-N-vinyl-2-pyrrolidone and 4-vinylpyridine-co-N-vinyl-2-pyrrolidone copolymers: synthesis and reactivity ratios

Cited by 28 publications

References 3 publications

Antibacterial/Antiviral Property and Mechanism of Dual-Functional Quaternized Pyridinium-type Copolymer

Antibacterial/Antiviral Property and Mechanism of Dual-Functional Quaternized Pyridinium-type Copolymer

Synthesis, Characterisation and Antibacterial Activity of Copolymer (N-Vinylpyrrolidone – Maleic Anhydride) With N- Diethylethanolamine

Water Free Operated Phosphoric Acid Doped Radiation‐Grafted Proton Conducting Membranes for High Temperature Polymer Electrolyte Membrane Fuel Cells

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