Synthesis, photomodification and characterization of homo- and copolymers with 2,5-bisaryltetrazolyl pendant groups

Darkow, Rita; Hartmann, Udo; Tomaschewski, Georg

doi:10.1016/s1381-5148(96)00080-6

Cited by 14 publications

(5 citation statements)

References 18 publications

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“…59 The stretching vibrations of the NN and N−H groups were observed as an intense sharp absorption near 1650 cm −1 , which suggests that a portion of the nitrile groups were converted into tetrazole groups. 60 Small new bands associated with the tetrazole ring appearing near 1550 cm −1 are characteristic of CN stretching, 61 while bending vibrations at 950 cm −1 are characteristic of the tetrazole ring. Furthermore, the absorption band at 950 cm Usually, nitrile-containing polymers, such as PIM-1, have high thermal stability, which is likely due to strong dipolar interactions.…”

Section: Resultsmentioning

confidence: 99%

Gas Transport in a Polymer of Intrinsic Microporosity (PIM-1) Substituted with Pseudo-Ionic Liquid Tetrazole-Type Structures

et al. 2020

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We report a side group modification strategy to tailor the structure of a polymer of intrinsic microporosity (PIM-1). PIM-1 with an average of ∼50% of the repeat units converted to tetrazole is prepared, and a subsequent reaction then introduces three types of pseudo-ionic liquid tetrazole-like structures (PIM-1-IL x ). The presence of pseudo-ionic liquid functional groups in the PIM-1 structure increases gas selectivities for O 2 /N 2 and CO 2 /N 2 , while it decreases pure-gas permeabilities. The overall gas separation performance of PIM-1-IL x is close to the 2008 Robeson upper bound. Since the tetrazoles are versatile groups for building a wide variety of ionic liquids, the modification method can be expanded to explore a broad spectrum of functional groups.

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Section: Resultsmentioning

confidence: 99%

Gas Transport in a Polymer of Intrinsic Microporosity (PIM-1) Substituted with Pseudo-Ionic Liquid Tetrazole-Type Structures

et al. 2020

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“…The network formation due to the NITEC reaction between poly(MA‐Tet) and fullerene was monitored by FTIR following the tetrazole bands (Figure ). As expected, a decrease in intensity of the bands corresponding to the stretching vibration (CN) of the tetrazole ring at 1540, 1215, and 995 cm −1 was observed indicating the opening of tetrazole ring by light irradiation . The quantity of activated tetrazole was calculated by comparing the integration of the band at 995 cm −1 in poly(MA‐Tet) and the networks (Figure S5, Supporting Information).…”

Section: Resultsmentioning

confidence: 73%

Polymer‐Fullerene Network Formation via Light‐Induced Crosslinking

Sugawara

Hiltebrandt

Blasco

et al. 2016

Macromol. Rapid Commun.

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A facile and efficient methodology for the formation of polymer-fullerene networks via a light-induced reaction is reported. The photochemical crosslinking is based on a nitrile imine-mediated tetrazole-ene cycloaddition reaction, which proceeds catalyst-free under UV-light irradiation (λmax = 320 nm) at ambient temperature. A tetrazole-functionalized polymer (Mn = 6500 g mol(-1) , Ð = 1.3) and fullerene C60 are employed for the formation of the hybrid networks. The tetrazole-functionalized polymer as well as the fullerene-containing networks are carefully characterized by NMR spectrometry, size exclusion chromatography, infrared spectroscopy, and elemental analysis. Furthermore, thermal analysis of the fullerene networks and their precursors is carried out. The current contribution thus induces an efficient platform technology for fullerene-based network formation.

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“…The PAN exhibits a weaker absorption at λ max of 318 and 288, whereas the PVT exhibits much stronger absorption at around 286 nm, indicating the presence of n-p * absorption due to the tetrazole rings (32). The UV-Vis spectra also provided the evidence of PVT formation.…”

Section: Uv-vis Spectra Of Polyvinyltetrazolementioning

confidence: 96%

Synthesis of Polyvinyltetrazole Resin by Combination of RAFT Polymerization and Click Chemistry for Adsorption of Hg(II)

Wang

Chen

et al. 2015

Journal of Macromolecular Science, Part A

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The combination of reversible addition-fragmentation chain transfer (RAFT) polymerization and Click Chemistry was employed as a new approach to synthesize polyvinyltetrazole resin from acrylonitrile. The chemical composition and structure of the polyvinyltetrazole resin was studied by Fourier-transform infrared spectrometry and UV-Vis spectroscopies. Elemental analysis indicated the higher tetrazole content of the polyvinytetrazole resin. The polyvinyltetrazole resin exhibited excellent adsorption for metal ions and the maximum adsorption capacity for Hg(II) was 5.79 mmol/g. The resin could be reused stably in the adsorption of heavy metal ions.

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Synthesis, photomodification and characterization of homo- and copolymers with 2,5-bisaryltetrazolyl pendant groups

Cited by 14 publications

References 18 publications

Gas Transport in a Polymer of Intrinsic Microporosity (PIM-1) Substituted with Pseudo-Ionic Liquid Tetrazole-Type Structures

Gas Transport in a Polymer of Intrinsic Microporosity (PIM-1) Substituted with Pseudo-Ionic Liquid Tetrazole-Type Structures

Polymer‐Fullerene Network Formation via Light‐Induced Crosslinking

Synthesis of Polyvinyltetrazole Resin by Combination of RAFT Polymerization and Click Chemistry for Adsorption of Hg(II)

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