Morphology and specific interaction of PMMA coating with the surface of porous silicon

Tighilt, F.-Z.; Gabouze, N.; Sam, S.; Belhousse, S.; Beldjilali, K.

doi:10.1016/j.susc.2007.04.082

Cited by 34 publications

(17 citation statements)

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“…All spectra showed peaks at close to 1150, 1240, 1450 and 1720 cm -1 originating in the C-C and -CH3 methacrylate groups of the PMMA 23) . The difference spectra showed peaks at close to 1110 cm -1 , indicating the presence of Si-O-Si and Si-O-C of silicate or siloxane on SP-treated and SP+TC-treated specimens.…”

Section: Surface and Morphology Of Tio2 Coating On Pmma Substratementioning

confidence: 97%

Improved brushing durability of titanium dioxide coating on polymethyl methacrylate substrate by prior treatment with acryloxypropyl trimethoxysilane-based agent for denture application

et al. 2010

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The purpose of this study was to determine whether the brushing durability of a titanium dioxide coating on a polymethyl methacrylate (PMMA) substrate was improved by prior treatment with an acryloxypropyl trimethoxysilane-based agent. Titanium dioxide coatings were obtained by spray-coating substrates with or without prior treatment. Structure was investigated using IR, SEM, and an EPMA. Effect on durability against brushing was determined with a brush-wear test machine utilizing a commercial denture brush.A thin layer comprised of siloxane and TiO2 was formed on a PMMA substrate by prior treatment with an acryloxypropyl trimethoxysilane-based agent and spray-coating of TiO2. Prior treatment demonstrated improved stability against brushing, whereas the titanium coating was removed after less than 1×10 5 brushing cycles without prior treatment. This suggests that prior treatment with an acryloxypropyl trimethoxysilane-based agent would confer improved durability against brushing-induced stress on a TiO2 coating in its application to dentures.

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Section: Surface and Morphology Of Tio2 Coating On Pmma Substratementioning

confidence: 97%

Improved brushing durability of titanium dioxide coating on polymethyl methacrylate substrate by prior treatment with acryloxypropyl trimethoxysilane-based agent for denture application

et al. 2010

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“…Figure 4(d) shows the spectrum for PClHPMA. The characteristic bands of an ester are present at 1730 and 1448 cm −1 ; the first relates to -C=O stretching (free carbonyl group) and the second to -O-CH 3 stretching [41]. The two bands at 1273 and 860 cm −1 are ascribed to C-O stretching and C-O-C stretching, respectively [39].…”

Section: Characterization Of the Tio 2 -Ps And Tio 2 -mentioning

confidence: 99%

Synthesis and Characterization of TiO₂Modified with Polystyrene and Poly(3-chloro-2-hydroxypropyl Methacrylate) as Adsorbents for the Solid Phase Extraction of Organophosphorus Pesticides

Alejo-Molina

Muñoz-Rodríguez

Carrera‐Figueiras

2016

Journal of Chemistry

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Novel hybrid TiO2particles were developed and assessed as an adsorbent for solid phase extraction (SPE) of organophosphorus pesticides (fensulfothion, parathion methyl, coumaphos, and diazinon) from spiked water. The sol-gel method was used to synthesize TiO2particles, which were coated with free-radical polystyrene (PS) and poly(3-chloro-2-hydroxypropyl methacrylate) (PClHPMA) polymers. Particle structures were determined via Fourier transform infrared spectroscopy to confirm that the polymers were successfully anchored to the TiO2particles. Thermogravimetric analysis was conducted to determine organic and inorganic matter in TiO2-PS and TiO2-PClHPMA particles showing results of 20 : 80 wt/wt% and 23 : 77 wt/wt%, respectively. SEM-EDS and X-ray diffraction test were conducted to determine the morphology and semielemental composition of the particles showing amorphous characteristics. By observing the contact angle, particles coated with PClHPMA were determined to be more hydrophilic than TiO2-PS particles. The pore size distributions obtained from the N2adsorption-desorption isotherms were 0.150 and 0.168 cm3g−1. The specific surface area (BET) was 239.9 m2g−1for TiO2-PS and 225.7 m2g−1for TiO2-PClHPMA. The synthesized particles showed relatively high yields of adsorption in SPE. The pesticide recoveries obtained by high performance liquid chromatography ranged from 6 to 26% for TiO2-PClHPMA and 44 to 92% for TiO2-PS.

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“…The primary characterization tool in this work was Fourier transform infrared spectroscopy (FT-IR) [5]. Spectra were obtained at room temperature with 64 scans at a resolution of 4 cm -1…”

Section: Introductionmentioning

confidence: 99%

Study of polystyrene film coating on the surface of porous silicon

Tighilt

Belhaneche

Gabouze³

2008

Phys. Status Solidi (c)

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In this work, the polystyrene (PS) coating onto the porous silicon by three different methods (dip coating, spin coating and spreading) has been studied. For this purpose, Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) have been carried out to evaluate the surface modification. The FTIR spectra showed the presence of strong hydrogen binding which occurred between the hydroxyl groups present at the surface of the porous silicon substrate and the π electrons of the polystyrene aromatic ring. Moreover, the EDS spectrum showed the presence of a peak attributed to the carbon which is the principal constituent of the PS polymer. Also, SEM observations showed that the morphology of the PS macromolecular chains depends strongly on the deposition‐ coating method. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Morphology and specific interaction of PMMA coating with the surface of porous silicon

Cited by 34 publications

References 5 publications

Improved brushing durability of titanium dioxide coating on polymethyl methacrylate substrate by prior treatment with acryloxypropyl trimethoxysilane-based agent for denture application

Improved brushing durability of titanium dioxide coating on polymethyl methacrylate substrate by prior treatment with acryloxypropyl trimethoxysilane-based agent for denture application

Synthesis and Characterization of TiO₂Modified with Polystyrene and Poly(3-chloro-2-hydroxypropyl Methacrylate) as Adsorbents for the Solid Phase Extraction of Organophosphorus Pesticides

Study of polystyrene film coating on the surface of porous silicon

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Morphology and specific interaction of PMMA coating with the surface of porous silicon

Cited by 34 publications

References 5 publications

Improved brushing durability of titanium dioxide coating on polymethyl methacrylate substrate by prior treatment with acryloxypropyl trimethoxysilane-based agent for denture application

Improved brushing durability of titanium dioxide coating on polymethyl methacrylate substrate by prior treatment with acryloxypropyl trimethoxysilane-based agent for denture application

Synthesis and Characterization of TiO2Modified with Polystyrene and Poly(3-chloro-2-hydroxypropyl Methacrylate) as Adsorbents for the Solid Phase Extraction of Organophosphorus Pesticides

Study of polystyrene film coating on the surface of porous silicon

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Synthesis and Characterization of TiO₂Modified with Polystyrene and Poly(3-chloro-2-hydroxypropyl Methacrylate) as Adsorbents for the Solid Phase Extraction of Organophosphorus Pesticides