Thermal stability and thermokinetics studies on silicone ceramer coatings: Part 1-inert atmosphere parameters

Tiwari, Atul; Hihara, Lloyd H.

doi:10.1016/j.polymdegradstab.2009.06.010

Cited by 38 publications

(22 citation statements)

References 40 publications

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“…The thermal stability of hydrobenzamide 2a was therefore investigated with thermogravimetric analysis (TGA). The feature of this analysis is to determine the initial decomposition temperature (onset), the temperature when 50 wt.% of hydrobenzamide is decomposed (D ½ ), and the final residue in a nitrogen atmosphere (34). As demonstrated by the results given in Figure 3, the TGA curve of hydrobenzamide 2a has an onset at a temperature of 254°C, a D ½ at a temperature of 281°C and above a temperature of 320°C there is no residue left.…”

Section: Thermal Stability Hydrobenzamidesmentioning

confidence: 99%

Mechanistic considerations and characterization of ammonia-based catalytic active intermediates of the green Knoevenagel reaction of various benzaldehydes

Schijndel

Molendijk

Spakman

et al. 2019

Green Chemistry Letters and Reviews

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Section: Thermal Stability Hydrobenzamidesmentioning

confidence: 99%

Mechanistic considerations and characterization of ammonia-based catalytic active intermediates of the green Knoevenagel reaction of various benzaldehydes

Schijndel

Molendijk

Spakman

et al. 2019

Green Chemistry Letters and Reviews

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“…The peaks at 1138 cm À1 is due to SiAO linkage and the band at 1032 cm À1 is due to AOH group of the silicone polymer. 20,21 The FTIR spectrum of silicone-PTh IPN is shown in Figure 2. Absorption band at 1429 cm À1 belong to C¼ ¼C symmetric stretching vibration of thiophene ring.…”

Section: Ftir Studymentioning

confidence: 99%

Synthesis and characterization of high temperature resistance interpenetrating polymer network

Kirubaharan

Palraj

Selvaraj

et al. 2010

J of Applied Polymer Sci

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Interpenetrating polymer network (IPN) polymer has been prepared by blending silicone resin polymer with the organic polymers such as polypyrrole [PPy] and polythiophene [PTh]. The IPNs were characterized by FTIR, NMR, and TGA/DSC analysis. The heat resistance performance of these IPNs were evaluated as per ASTM D2485. The result indicates that the IPN based on silicone-PTh has got superior heat resistant property than silicone-PPy. The electrochemical impedance measurements showed that the corrosion resistances of both the IPNs was similar. AFM morphological study confirms the influence of PPy/PTh on silicone polymer in forming smooth heterogeneous micro-structured IPNs.

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“…Moreover, the peak at 1,020 cm -1 associated with the primary hydroxyl group in the spectrum of (Cs/ Gltn/PDMAEMA) hydrogel disappeared, whilst the peak at 1,072 cm -1 of the secondary hydroxyl group did not change. The disappearance of the peak associated with the primary hydroxyl group could be due to the change of OH groups of C6-OH into SH groups which indicates that the thiolation occurred at the C6-OH of the chitosan [25]. In the spectrum of Cs/Gltn/PDMAEMA/SiO 2 composite, peaks are seen in the range of 963-846 cm -1 are the typical peaks of Si-OH vibration.…”

Section: Ftir Spectroscopymentioning

confidence: 96%

“…The peak at 1,153 cm -1 is corresponding to C-O-C stretching in glycosidic bonds. The peaks at 1,072 and 1,020 cm -1 are corresponding to the stretching peaks of secondary and primary C-O [25]. The peaks at 1,550 and 1,643 cm -1 are corresponding to the stretching carbonyl group of amino group in Gltn.…”

Section: Ftir Spectroscopymentioning

confidence: 97%

Adsorptive removal of nitrate ions from aqueous solution using modified biodegradable-based hydrogel

Khalek¹,

Mahmoud²,

Shoukry³

et al. 2019

Desalination and Water Treatment

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This study aims to remove nitrate (NO 3 −) ions from aqueous solutions using biodegradable-based adsorbents. For this purpose (Chitosan/Gelatin/2-(N,N-Dimethylamino) ethyl methacrylate) (Cs/Gltn/ PDMAEMA) hydrogel was prepared by gamma irradiation. The prepared hydrogel was modified using thiourea by converting the hydroxyl groups into thiol groups to form (Cs/Gltn/PDMAEMA)treated. Moreover, the SiO 2 trapped in Cs/Gltn/PDMAEMA hydrogel to perform Cs/Gltn/PDMAEMA/ SiO 2 composite was also prepared. The swelling behavior of the prepared adsorbents was studied as functions of time and pH. Batch adsorption experiments were performed to study the effects of various operating parameters such as initial pH, contact time, initial ions concentration and temperature on the adsorption of NO 3 − ions. The result showed that the best adsorption capacity was obtained at pH 2 within 100 min and the optimum sorbent dosage was 10 g/L. The adsorption capacities were ordered in sequence of Cs/Gltn/PDMAEMA/SiO 2 composite followed by Cs/Gltn/PDMAEMA-treated then Cs/Gltn/PDMAEMA hydrogel. The rates of adsorption were found to follow the pseudo-second-order model. It was found that Freundlich's equation fits the adsorption better than the Langmuir's equation. The free energy of adsorption (∆G°), enthalpy (∆H°), and entropy (∆S°) changes were calculated to predict the nature of adsorption.

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Thermal stability and thermokinetics studies on silicone ceramer coatings: Part 1-inert atmosphere parameters

Cited by 38 publications

References 40 publications

Mechanistic considerations and characterization of ammonia-based catalytic active intermediates of the green Knoevenagel reaction of various benzaldehydes

Mechanistic considerations and characterization of ammonia-based catalytic active intermediates of the green Knoevenagel reaction of various benzaldehydes

Synthesis and characterization of high temperature resistance interpenetrating polymer network

Adsorptive removal of nitrate ions from aqueous solution using modified biodegradable-based hydrogel

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