Diphenylsiloxane-bridged ladder-like hydrido-polysiloxane and the derivatisation by triphenylsiloxy substitution

Shang, Xinxin; Cao, Xinyu; Ma, Yingfei; Kumaravel, Jeeva Jothi; Zheng, Kun; Zhang, Jingnan; Zhang, Rongben

doi:10.1016/j.eurpolymj.2018.07.006

Cited by 13 publications

(5 citation statements)

References 59 publications

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“…The very strong band at 1011 cm −1 represents the vibration band for Si-O-Si [18]. Bands at 1591 cm −1 and 1428 cm −1 can be assigned to skeleton vibration of phenyl groups in PDPS polymer [19]. The shoulder band at 1009 cm −1 originates from SiO 2 network formation, and the appearance of a majority of bands from the PDPS spectra in the sol-gel PDPS coated fiberglass spectra is evidence of the successful integration of PDPS polymer into the sol-gel PDPS network coated on the glass fiber substrate.…”

Section: Resultsmentioning

confidence: 97%

A Novel Glass Fiber Coated with Sol–Gel Poly-Diphenylsiloxane Sorbent for the On-Line Determination of Toxic Metals Using Flow Injection Column Preconcentration Platform Coupled with Flame Atomic Absorption Spectrometry

et al. 2020

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A novel simple and sensitive, time-based flow injection solid phase extraction system was developed for the automated determination of metals at low concentration. The potential of the proposed scheme, coupled with flame atomic absorption spectrometry (FAAS), was demonstrated for trace lead and chromium(VI) determination in environmental water samples. The method, which was based on a new sorptive extraction system, consisted of a microcolumn packed with glass fiber coated with sol–gel poly (diphenylsiloxane) (sol–gel PDPS), which is presented here for the first time. The analytical procedure involves the on-line chelate complex formation of target species with ammonium pyrrolidine dithiocarbamate (APDC), retention onto the hydrophobic sol–gel sorbent coated surface of glass fibers, and finally elution with methyl isobutyl ketone prior to atomization. All main chemical and hydrodynamic factors, which affect the complex formation, retention, and elution of the metal, were optimized thoroughly. Furthermore, the tolerance to potential interfering ions appearing in environmental samples was also explored. Enhancement factors of 215 and 70, detection limits (3 s) of 1.1 μg·L−1 and 1.2 μg·L−1, and relative standard deviations (RSD) of 3.0% (at 20.0 μg·L−1) and 3.2% (at 20.0 μg·L−1) were obtained for lead and chromium(VI), respec tively, for 120 s preconcentration time. The trueness of the developed method was estimated by analyzing certified reference materials and spiked environmental water samples.

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Section: Resultsmentioning

confidence: 97%

A Novel Glass Fiber Coated with Sol–Gel Poly-Diphenylsiloxane Sorbent for the On-Line Determination of Toxic Metals Using Flow Injection Column Preconcentration Platform Coupled with Flame Atomic Absorption Spectrometry

et al. 2020

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“…The relatively sharp peak at around 5.5° and the broad peak at around 20° can be ascribed to the chain-to-chain distance and intrachain distances for a stereoregular double-chain structure called a ladder structure of BCBVSiO 3/2 , respectively. 27–29 The peak in the small-angle region is sharp and intense, indicating that the particles possessed a high regularity structure. Moreover, compared with the peaks for BMPS, those for BMPS-cured are sharper and the diffraction angle of the peaks is smaller.…”

Section: Resultsmentioning

confidence: 99%

Preparation of benzocyclobutene-functionalized organic–inorganic hybrid microspheres and their reduction of permittivity to DVSBCB resin

Peng

et al. 2023

Polym. Chem.

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“…[ 11 ] Solidified CPNs showed highly condensed (87% of degree of Si‐O‐Si bond formation from silane precursors, Figure S3 and Table S2, Supporting Information) and amorphous SiO 2 ‐like matrix (ladder‐like Si‐O‐Si structure, Figure S4, Supporting Information). [ 28 ] The solidified CPNs showed similar NP size but slightly redshifted PL spectrum to those of colloidal OIHP NP solution most probably due to generated defects during UV‐curing (will be discussed below) (Figure S5, Tables S1 and S3, Supporting Information).…”

Section: Figurementioning

confidence: 99%

Extremely Stable Luminescent Crosslinked Perovskite Nanoparticles under Harsh Environments over 1.5 Years

et al. 2020

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Organic–inorganic hybrid perovskite nanoparticles (NPs) are a very strong candidate emitter that can meet the high luminescence efficiency and high color standard of Rec.2020. However, the instability of perovskite NPs is the most critical unsolved problem that limits their practical application. Here, an extremely stable crosslinked perovskite NP (CPN) is reported that maintains high photoluminescence quantum yield for 1.5 years (>600 d) in air and in harsher liquid environments (e.g., in water, acid, or base solutions, and in various polar solvents), and for more than 100 d under 85 °C and 85% relative humidity without additional encapsulation. Unsaturated hydrocarbons in both the acid and base ligands of NPs are chemically crosslinked with a methacrylate‐functionalized matrix, which prevents decomposition of the perovskite crystals. Counterintuitively, water vapor permeating through the crosslinked matrix chemically passivates surface defects in the NPs and reduces nonradiative recombination. Green‐emitting and white‐emitting flexible large‐area displays are demonstrated, which are stable for >400 d in air and in water. The high stability of the CPN in water enables biocompatible cell proliferation which is usually impossible when toxic Pb elements are present. The stable materials design strategies provide a breakthrough toward commercialization of perovskite NPs in displays and bio‐related applications.

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Diphenylsiloxane-bridged ladder-like hydrido-polysiloxane and the derivatisation by triphenylsiloxy substitution

Cited by 13 publications

References 59 publications

A Novel Glass Fiber Coated with Sol–Gel Poly-Diphenylsiloxane Sorbent for the On-Line Determination of Toxic Metals Using Flow Injection Column Preconcentration Platform Coupled with Flame Atomic Absorption Spectrometry

A Novel Glass Fiber Coated with Sol–Gel Poly-Diphenylsiloxane Sorbent for the On-Line Determination of Toxic Metals Using Flow Injection Column Preconcentration Platform Coupled with Flame Atomic Absorption Spectrometry

Preparation of benzocyclobutene-functionalized organic–inorganic hybrid microspheres and their reduction of permittivity to DVSBCB resin

Extremely Stable Luminescent Crosslinked Perovskite Nanoparticles under Harsh Environments over 1.5 Years

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