Modification of nanosilica particles with hydrophobic modifier bis[3-(triethoxysilyl)propyl]tetrasulfide by using micro-injection in aqueous solutions

Yu, Keyi; Yang, Ling; Wang, Jingyuan; Zhu, Zirui; Wang, Ting-Jie

doi:10.1016/j.colsurfa.2020.124852

Cited by 11 publications

(3 citation statements)

References 47 publications

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“…These results also meant that the dimethyl and vinyl groups in DVTMDS molecule changed the hydrophilic surface of the nano-ATH particle to a silicone-friendly hydrophobic characteristic. 25 Methyl groups could improve the dispersibility of the modified nano-ATH in the LSR and vinyl groups on the nano-ATH would greatly improve the interfacial strength through the hydrosilylation reaction between Si H group and vinyl group. 26 Therefore, when the modified nano-SiO 2 and the modified nano-ATH were mixed in the LSR, it was expected that the tracking resistance would be greatly improved by suppressing the penetration of water molecules into the LSR surface region and the endothermic process during the ATH thermal decomposition.…”

Section: Resultsmentioning

confidence: 99%

Effect of surface‐modified nano‐aluminum trihydroxide on electrical properties of silicone/nano‐silica nanocomposite

Park

Lee

2021

J of Applied Polymer Sci

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The surface of fumed nano-silica (nano-SiO 2 ) was treated with an alkyl silazane to change from hydrophilic surface to hydrophobic, and the surface of aluminum trihydroxide (nano-ATH) was treated with a vinyl silazane to improve electrical properties (high voltage direct current [HVDC] breakdown strength and tracking resistance) in silicone nanocomposites. They were prepared by mixing liquid silicone resin with the modified nano-SiO 2 and the modified nano-ATH, and the effects of the modified nano-ATH particles on the electrical properties were studied in order to apply them to heavy electric equipment. The surface modifications were confirmed by thermogravimetric analysis and contact angle analysis. As the nano-ATH content increased, (±) HVDC breakdown strength increased and tracking resistance was greatly improved. As the nano-ATH content increased, the initial generation of leakage current was delayed, and the occurrence frequency and the intensity of the leakage current decreased. The erosion weight due to the tracking also decreased.

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Section: Resultsmentioning

confidence: 99%

Effect of surface‐modified nano‐aluminum trihydroxide on electrical properties of silicone/nano‐silica nanocomposite

Park

Lee

2021

J of Applied Polymer Sci

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“…The purpose of this work was to have a system that could be able to form cross-linked structures through the controlled hydrolysis of the alkoxysilyl groups [46,47]. In addition, these materials are able to react with certain surfaces or nanoparticles bearing hydroxyl groups in order to achieve the chemical modification of these surfaces or nanoparticles by grafting hydrophobic helical polymer chains onto them [48][49][50][51].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Statistical and Block Copolymers of n-Hexyl Isocyanate and 3-(Triethoxysilyl) Propyl Isocyanate via Coordination Polymerization

Panteli,

Mantzara,

Katara

et al. 2023

Polymers

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Well-defined statistical copolymers of n-hexyl isocyanate, HIC, and 3-(triethoxysilyl)propyl isocyanate, TESPI, were synthesized via coordination polymerization mechanism, employing a chiral half-titanocene complex as initiator. The monomer reactivity ratios of the statistical copolymers were calculated using linear graphical methods and the computer program COPOINT in the frame of the terminal model. The molecular and structural characteristics of the copolymers were also calculated. The kinetics of the thermal decomposition of the statistical copolymers was studied by Thermogravimetric Analysis, TGA, and Differential Thermogravimetry, DTG, and the activation energy of this process was calculated employing several theoretical models. In addition, block copolymers constituted from PHIC and PTESPI blocks were synthesized by sequential coordination polymerization. All samples were characterized by nuclear magnetic resonance, NMR, spectroscopy and size exclusion chromatography, SEC. The thermal stability of the blocks was also studied by TGA and DTG and compared to the corresponding statistical copolymers.

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“…3-Glycidoxypropyltrimethoxysilane (GLYMO), a significant silane coupling agent, is usually used as a coupling bridge between inorganic substrates and organic materials [34][35][36]. The main groups of GLYMO play an important role in connecting two different materials, the methoxy group at one end is bonded to abundant silanol groups that are dispersed on the surface of silica, while the organic functional group (epoxy-) at the other end reacts with amino groups, etc.…”

Section: Introductionmentioning

confidence: 99%

Hydrophilic carrageenan functionalized magnetic carbon‐based framework linked by silane coupling agent for the enrichment of N‐glycopeptides from human saliva

Jin

Zhu

Yan

et al. 2021

J of Separation Science

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In this work, a magnetic graphene material coated with mesoporous silica was selected as the substrate, 3-glycidoxypropyltrimethoxysilane and polyethyleneimine were sequentially bonded through chemical reactions, and then carrageenan was successfully introduced by electrostatic interaction; finally, hydrophilic nanocomposite material was prepared. Due to the large number of hydrophilic groups, and polyethyleneimine was connected by means of chemical bonds, this material exhibits good hydrophilicity and stability for glycopeptide enrichment. In the actual enrichment process, nanomaterial exhibits high selectivity (1:500), high sensitivity (2 fmol), and good repeatability (five cycles). In addition, the synthesized material also shows a good enrichment effect in the face of actual complex biological samples, which captured 40 Nglycopeptides from human saliva, indicating the application potential for enrichment of N-glycopeptides.

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Modification of nanosilica particles with hydrophobic modifier bis[3-(triethoxysilyl)propyl]tetrasulfide by using micro-injection in aqueous solutions

Cited by 11 publications

References 47 publications

Effect of surface‐modified nano‐aluminum trihydroxide on electrical properties of silicone/nano‐silica nanocomposite

Effect of surface‐modified nano‐aluminum trihydroxide on electrical properties of silicone/nano‐silica nanocomposite

Synthesis and Characterization of Statistical and Block Copolymers of n-Hexyl Isocyanate and 3-(Triethoxysilyl) Propyl Isocyanate via Coordination Polymerization

Hydrophilic carrageenan functionalized magnetic carbon‐based framework linked by silane coupling agent for the enrichment of N‐glycopeptides from human saliva

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