Three steps to organic–inorganic hybrid films showing superhydrophilic properties

Celia, Elena; Givenchy, Elisabeth Taffin de; Amigoni, Sonia; Guittard, Frédéric

doi:10.1039/c1sm05864a

Cited by 15 publications

(11 citation statements)

References 41 publications

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“…Aer the sample was loaded, a minimum of 16 scans were collected for each sample at a resolution of AE4 cm À1 . 1 H NMR and 13 C NMR spectra were recorded in DMSO-d 6 on a JEOL GSX 500 MHz spectrometer. 1 H NMR spectra were recorded at 500 MHz using an 8000 Hz spectral width, a relaxation delay of 3.5 s, a pulse width of 45, 32 K data points and DMSO-d 6 as the internal reference.…”

Section: Characterizationmentioning

confidence: 99%

“…12 The incorporation of an inorganic phase into an organic polymer matrix may be an effective approach to improve specic properties of organic polymers. 13 Organic-inorganic hybrids that combine the advantages of both polymer and ceramic materials such as enhanced mechanical strength, thermal stability and improved processability have been synthesized through different routes. Among these, the in situ polymerization of metal alkoxide precursors, in the presence of polymer matrices via the sol-gel method is the most valuable and attractive.…”

Section: Introductionmentioning

confidence: 99%

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In situ sol–gel synthesis of silica reinforced polybenzoxazine hybrid materials with low surface free energy

et al. 2014

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In the present work, silica reinforced polybenzoxazine (PBZ-SiO 2 ) hybrid materials possessing low surface free energy have been developed using a dimethylol-functional benzoxazine monomer (4HBA-BZ), tetraethoxysilane (TEOS) and 3-(isocyanatopropyl)triethoxysilane (ICPTS) through an in situ sol-gel process. Data from the contact angle measurement indicate that the hybrid materials are hydrophobic in nature and possess a low surface free energy. For example, a PBS 3 hybrid material (1 : 1 : 1 ratio of 4HBA-BZ : ICPTS : TEOS) exhibits a low surface free energy of 18.6 mJ m À2 which is lower than that of poly(tetrafluoroethylene) (22.0 mJ m À2 ). Further data obtained from thermal studies indicate that the hybrid PBZ possesses higher values of the glass transition temperature (T g ), thermal stability and char yield than those of neat PBZ.

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Section: Characterizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

In situ sol–gel synthesis of silica reinforced polybenzoxazine hybrid materials with low surface free energy

et al. 2014

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“…This type of arrangement is known as a metal-semiconductor-metal (MSM) structure, with two back-to-back Schottky diodes. Our sample mainly consists of multiwall CNTs (MWCNTs) that have been previously reported in several analyses by our team to have a size on the nanometer scale [25][26][27][28][29]. In addition, as shown in Figure 3a, a finger-shaped qualitative surface morphology is identified by scanning electron microscopy (SEM) and in the focused part, the presence of cylindrical nanoparticles a few hundred nanometers in size is revealed ( Figure 3b).…”

Section: Experimental Frameworkmentioning

confidence: 83%

Carbon Nanoparticle-Based Electro-Thermal Building Block

et al. 2020

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All around the world, researchers have raised concerns about the superlative geometrical, electronic, thermal, chemical and mechanical properties of carbon nanoparticles (CNPs). CNPs with low cost, high performance and prominent intrinsic properties have attracted extensive interest for numerous applications in various fields. Although CNPs have been studied mainly as transistors and sensors, they could also be considered as heat producers. However, this option has scarcely been studied. In this research, a CNP-based electro-thermal building block is synthesized by the arc discharge method in a carbonic medium (high-density polyethylene), and its behavior is investigated. It is shaped in the form of a metal–semiconductor–metal structure (MSM) between metallic electrodes, and in addition, the formation of two back-to-back Schottky diodes is analyzed and their use as CNP-based electro-thermal building blocks are reported.

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“…Hence, 1.5 wt% FCM/PBZ nanocomposite exhibited the highest thermal stability, when compared with those of other FCM reinforced PBZ nanocomposites and neat PBZ. The enhanced thermal stability was attributed to the interphased aluminosilicate acting as a thermal barrier and hindering the heat transfer . During the thermal curing of monomer resin (BA‐a), the FCM concurrently reinforced with the organic matrix and formed a high temperature retardant alumino silicate intercalated organic–inorganic hybrid network through bonding.…”

Section: Resultsmentioning

confidence: 99%

Ceria doped mullite reinforced polybenzoxazine nanocomposites with improved UV‐shielding and thermo‐mechanical properties

et al. 2016

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In this present work, the UV shielding behavior of various mol percent of Ce doped mullite samples (CM0–5) were studied. The UV shielding behavior of mullite increasing with respect to ceria and reaching 78% of shielding tendency at 300 nm for CM5 was one of the fascinating outcomes of the study. Based on its exhibition of high shielding tendency, CM5 was chosen and functionalized with Glycidyl terminated silane. Subsequently, the resultant functionalized ceria doped mullite (FCM) was reinforced with polybenzoxazine (PBZ) matrix in order to build up FCM/PBZ nanocomposites. A detailed study was also conducted on the level of influence FCM yields in impacting properties such as UV shielding and thermo‐mechanical nature of FCM/PBZ nanocomposites. Upon analysis, it was determined that the 1.5 wt% FCM reinforced PBZ nanocomposite delivered 89% and 78% shielding efficiency at 300 and 200 nm UV region, respectively. Furthermore studies indicated that it exhibited 34% improved char yield, enhanced tensile strength, that is, 24.81% and 162°C as its glass transition temperature in comparison with neat PBZ matrix and other FCM/PBZ nanocomposites. These results suggest that the Ce doped mullite with high UV shielding properties can be used as a reinforcement to increase the UV shielding tendency of polymeric material which is of industrial significance. POLYM. COMPOS., 39:2073–2080, 2018. © 2016 Society of Plastics Engineers

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Three steps to organic–inorganic hybrid films showing superhydrophilic properties

Cited by 15 publications

References 41 publications

In situ sol–gel synthesis of silica reinforced polybenzoxazine hybrid materials with low surface free energy

In situ sol–gel synthesis of silica reinforced polybenzoxazine hybrid materials with low surface free energy

Carbon Nanoparticle-Based Electro-Thermal Building Block

Ceria doped mullite reinforced polybenzoxazine nanocomposites with improved UV‐shielding and thermo‐mechanical properties

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