Green and catalyst-free preparation of triazinyl polyimide for the efficient adsorption of glycoproteins

Zhang, Yue; Zhang, Mengsi; Zhang, Yang; Chen, Xuwei; Wang, Jianhua

doi:10.1039/c6ra05411k

Cited by 16 publications

(3 citation statements)

References 31 publications

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“…Particularly, the diffraction peak at 18.8° (interlayer spacing ( d ) = 0.474 nm) and the peak at 29.5° ( d = 0.304 nm) indicated that the synthesized polymers were reasonably crystalline. , The percentage crystallinity and average crystallite sizes of the polymers were suitably computed (Table S1). , The XRD pattern of thiourea/PI manifested that the incorporation of thiourea-derived sulfur into PI had presumably improved on the uniformity of polymer chain orientation and molecular coherence of the crystal domains . A shift in the peak position from 26.6° ( d = 0.334 nm) to 27.6° ( d = 0.322 nm) also indicated that the aromatic segments of the modified PI were more regularly stacked .…”

Section: Results and Discussionmentioning

confidence: 99%

“…22,23 The XRD pattern of thiourea/PI manifested that the incorporation of thiourea-derived sulfur into PI had presumably improved on the uniformity of polymer chain orientation and molecular coherence of the crystal domains. 24 A shift in the peak position from 26.6°(d = 0.334 nm) to 27.6°(d = 0.322 nm) also indicated that the aromatic segments of the modified PI were more regularly stacked. 25 The progressive diminution of the peak at 18.8°and the concomitant appearance of a weak peak at 13.2°(d = 0.673 nm), following the gradual increase in SWO 3 content, represented a slightly altered in-planar packing motif similar to the periodic tri-s-triazine connection ordinarily manifested by the structure of g-C 3 N 4 12 .…”

Section: ■ Materials and Methodsmentioning

confidence: 96%

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Microwave-Assisted Modified Polyimide Synthesis: A Facile Route to the Enhancement of Visible-Light-Induced Photocatalytic Performance for Dye Degradation

Dasgupta

Sikder

Chakraborty

et al. 2017

ACS Sustainable Chem. Eng.

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Visible-light-active π-conjugated polymer photocatalysts can effectively harness solar energy, thereby offering pragmatic solutions to eclectic environmental issues. In the present study, a series of ingenious visible-light-responsive, stable, and recyclable modified polyimide (SWO 3 /PI) photocatalysts was synthesized via a facile microwave-assisted rapid thermal polymerization strategy. The precursors employed were pyromellitic dianhydride, melamine, thiourea, and tungsten trioxide co-catalyst. The template-free inclusion of sulfur and tungsten oxide species into the PI conformation increased visible-light absorption and enhanced the separation efficiency of the photogenerated electron−hole pairs. The visible-light-induced reactive red 120 (RR 120) photodegradation efficiency exhibited by the SWO 3 /PI photocatalyst was over 98% and was approximately 2.3 times higher than that exhibited by pristine PI. Herein h + and OH • were the principal active species involved in dye degradation. Interestingly, the sizable valence band edge downshift from 2.02 to 3.36 eV induced a remarkable enhancement in the photooxidation ability of the photoinduced holes, despite the fact that the relatively inappropriate position conduction band edge position (1.77 eV) did not favor the participation of photoinduced electrons in the reduction process. The liquid chromatography−mass spectrometry results revealed that photocatalytic degradation of RR 120 had been effectively accomplished.

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Section: Results and Discussionmentioning

confidence: 99%

Section: ■ Materials and Methodsmentioning

confidence: 96%

Microwave-Assisted Modified Polyimide Synthesis: A Facile Route to the Enhancement of Visible-Light-Induced Photocatalytic Performance for Dye Degradation

Dasgupta

Sikder

Chakraborty

et al. 2017

ACS Sustainable Chem. Eng.

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“…Additionally, the poor solubility of imide units in traditional solvents also causes early desolvation and phase separation, making it hard to evolve the integrated porous structure in the resultant polymers. [11][12][13][14] Therefore, it is imperative to explore the sustainable preparation strategy of MPIs for promoting their practical applications.…”

Section: Introductionmentioning

confidence: 99%

Naphthalene-based semiconducting microporous polyimides for high-efficiency photo-catalytic dye degradation

Lei,

Lin,

Wang

et al. 2023

Polym. Chem.

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Analysis of Carbohydrates and Glycoconjugates by Matrix‐assisted Laser Desorption/Ionization Mass Spectrometry: An Update for 2015–2016

Harvey

2021

Mass Spectrometry Reviews

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This review is the ninth update of the original article published in 1999 on the application of matrix‐assisted laser desorption/ionization (MALDI) mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2016. Also included are papers that describe methods appropriate to analysis by MALDI, such as sample preparation techniques, even though the ionization method is not MALDI. Topics covered in the first part of the review include general aspects such as theory of the MALDI process, matrices, derivatization, MALDI imaging, fragmentation and arrays. The second part of the review is devoted to applications to various structural types such as oligo‐ and poly‐saccharides, glycoproteins, glycolipids, glycosides and biopharmaceuticals. Much of this material is presented in tabular form. The third part of the review covers medical and industrial applications of the technique, studies of enzyme reactions and applications to chemical synthesis. The reported work shows increasing use of combined new techniques such as ion mobility and the enormous impact that MALDI imaging is having. MALDI, although invented over 30 years ago is still an ideal technique for carbohydrate analysis and advancements in the technique and range of applications show no sign of deminishing. © 2020 Wiley Periodicals, Inc.

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Green and catalyst-free preparation of triazinyl polyimide for the efficient adsorption of glycoproteins

Abstract: Triazinyl polyimide is prepared via a solvent-free and catalyst-free imidization reaction by using melamine and pyromellitic dianhydride as precursors and it exhibits excellent selectivity towards glycoprotein.

Cited by 16 publications

References 31 publications

Microwave-Assisted Modified Polyimide Synthesis: A Facile Route to the Enhancement of Visible-Light-Induced Photocatalytic Performance for Dye Degradation

Microwave-Assisted Modified Polyimide Synthesis: A Facile Route to the Enhancement of Visible-Light-Induced Photocatalytic Performance for Dye Degradation

Naphthalene-based semiconducting microporous polyimides for high-efficiency photo-catalytic dye degradation

Analysis of Carbohydrates and Glycoconjugates by Matrix‐assisted Laser Desorption/Ionization Mass Spectrometry: An Update for 2015–2016

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