Design, Synthesis and Characterization of 3,4-Dihydro-2H-pyran Containing Copolymer/Clay Nanocomposites

Can, Hatıce Kaplan; Şahin, Özlem

doi:10.1080/10601325.2015.1029372

Cited by 12 publications

(7 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Physical structures of synthesized copolymer and its nanocomposites were investigated by XRD analysis. XRD studies are important to understanding of the detailed structure, the intercalation of the copolymer chains into the galleries of the clay and the formation of the nanocomposites from the changes in the spacing between the silicate layers of the O‐MMT 37 . Intercalation of monomers into the silicate layers should result in the broadening and decrease in 2θ with an increase in the basal spacing and these are the proof of the nanocomposite formation 38 .…”

Section: Resultsmentioning

confidence: 99%

An emphasis on dynamic mechanical properties of novel stilbene containing copolymer/organo‐MMTnanocomposites fabricated via in situ interlamellar copolymerization

Kavlak

Can

2021

J of Applied Polymer Sci

View full text Add to dashboard Cite

The objective of the present study is to synthesis and characterize the novel functional stilbene containing copolymer‐clay nanocomposites, make clear the influence of organo‐clay on peculiarities of the nanocomposites and emphasis on the dynamic mechanical properties. For this purpose, poly(acrylamide‐co‐trans‐stilbene)‐organo‐MMT [poly(AAm‐co‐Stb)‐O‐MMT] nanocomposites were synthesized by in situ interlamellar solution copolymerization with organically modified montmorillonite (O‐MMT) clay due to its superior properties gives to copolymer. The effect of different amounts of O‐MMT clay incorporation to the nanocomposite structure and properties of copolymer/O‐MMT clay nanocomposites were characterized by X‐ray diffraction (XRD), Attenuated Total Reflectance‐Fourier Transform Infrared, Thermogravimetric Analysis, Differential Scanning Calorimeter, Dynamic mechanic analysis (DMA) methods. XRD analysis showed the basal spacing of the O‐MMT increased in nanocomposites and this indicated that the intercalation of the copolymer chain into the O‐MMT interlayer performed and nanocomposites were obtained successfully. Additionally, copolymer/O‐MMT nanocomposites exhibited improved thermal properties at higher temperatures than the pristine copolymer. DMA results enlightened the viscoelastic properties of synthesized materials. DMA results indicated that obtained nanocomposites have higher mechanical strength because of the interaction/compatibility in between copolymer chains and O‐MMT. In the light of these results, this work has introduced new perspectives on design, fabrication and viscoelastic properties of certain organo‐clay copolymer nanocomposites for the synthesis of new materials and potential industrial applications.

show abstract

Section: Resultsmentioning

confidence: 99%

An emphasis on dynamic mechanical properties of novel stilbene containing copolymer/organo‐MMTnanocomposites fabricated via in situ interlamellar copolymerization

Kavlak

Can

2021

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…Amorphous character of the dextran homopolymer (% X c ¼ 2.11) change to the semi-crystalline structure when the iron oxide coating in dextran iron nanoparticles (% X c ¼ 22.83) ( Figure 2). This dramatic change in crystallinity can be explained the iron oxide crystal structures [41].…”

Section: Characterization Of Iron-oxide Dextran Nanoparticles By Xrdmentioning

confidence: 97%

Preparation, characterization and dynamical mechanical properties of dextran-coated iron oxide nanoparticles (DIONPs)

Can

Kavlak

Parvizikhosroshahi

et al. 2017

Artificial Cells, Nanomedicine, and Biotechnology

View full text Add to dashboard Cite

Dextran-coated iron oxide nanoparticles (DIONPs) with appropriate surface chemistry exhibit many interesting properties that can be exploited in a variety of biomedical applications such as magnetic resonance imaging (MRI) contrast enhancement, tissue repair, hyperthermia, drug delivery and in cell separation. This paper reports the experimental detail for preparation, characterization and investigation of thermal and dynamical mechanical characteristics of the dextran-coated FeO magnetic nanoparticles. In our work, DIONPs were prepared in a 1:2 ratio of Fe(II) and Fe(III) salt in the HCl solution with NaOH at given temperature. The obtained dextran-coated iron-oxide nanoparticles structure-property correlation was characterized by spectroscopic methods; attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR) and XRD. Coating dextran on the iron-oxide proof of important peaks can be seen from the ATR-FTIR. Dramatic crystallinity increment can be observed from the XRD pattern of the iron-oxide dextran nanoparticles. The thermal analysis was examined by differential scanning calorimetry (DSC), thermal gravimetric analysis (TGA) and differential thermal analysis (DTA). Dynamical mechanical properties of dextran nanoparticles were analysed by dynamic mechanical analysis (DMA). Thermal stability of the iron oxide dextran nanoparticles is higher than that of the dextran.

show abstract

“…4 (2021) bentonite layers. Moreover, The interaction between the hydroxyl group of bentonite and water molecules (hydrogen bond) was appeared at 1610 cm -1 [29] with increased intensity after adding of starch and DEA, suggesting the strengthening of hydrogen bonds formation in the mixture. Also, the other peaks showed a reduction in the intensity due to the separation of some layer, and consequently, the particle size of bentonite is reduced.…”

Section: Resultsmentioning

confidence: 98%

High-Performance Rheology Modifiers and Fluid Loss of Starch-Bentonite Mixed System in Mud Fluids: Experimental and Optimization Study

et al. 2020

View full text Add to dashboard Cite

The capability of drilling fluid to endure high temperatures is an important characteristic of drilling fluids. Natural polymers are commonly used as additives for drilling fluids to improve their rheological properties. Starch is one of them, that is extensively used in the drilling due to economics. However, the thermal stability of water-based mud included starch is low. Herein, diethanolamine is used to enhance the rheological and filtration loss properties of the water-based fluids (WBF) through chemical modification of Lewis acid sites in bentonite framework and the formation of a cross-linked hydrogen bond with the starch compound. The effect of starch as an additive to WBF was studied at 0.56% and 0.94% in the bentonite-based fluid. The revealed data indicated an apparent improvement had been achieved after the addition of starch (0.94%). The effect of diethanolamine (DEA) on the rheological properties of starch-bentonite system, DEA was used as an additive at three ratios of 0.19%, 0.37%, and 0.75, at 300 °F, 325 °F, 350 °F, and 375 °F. The obtained data indicated that both rheological and filtration loss properties were enhanced, eventually at elevated temperature of 350 °F. The interaction in bentonite-starch, bentonite-DEA, and bentonite-starch-DEA WBF was studied using FTIR, XRD, and Raman spectroscopy. The results indicated the formation of hydrogen bonds between all components, which increases the basal displacing between bentonite layers. That interaction leads to the enhancement of the rheological and filtration loss properties of the drilling fluid. The response surface methodology (RSM) was used with the central composite design to evaluate and improve the drilling fluid compositions in terms of various rheological parameters.

show abstract

Design, Synthesis and Characterization of 3,4-Dihydro-2H-pyran Containing Copolymer/Clay Nanocomposites

Cited by 12 publications

References 27 publications

An emphasis on dynamic mechanical properties of novel stilbene containing copolymer/organo‐MMTnanocomposites fabricated via in situ interlamellar copolymerization

An emphasis on dynamic mechanical properties of novel stilbene containing copolymer/organo‐MMTnanocomposites fabricated via in situ interlamellar copolymerization

Preparation, characterization and dynamical mechanical properties of dextran-coated iron oxide nanoparticles (DIONPs)

High-Performance Rheology Modifiers and Fluid Loss of Starch-Bentonite Mixed System in Mud Fluids: Experimental and Optimization Study

Contact Info

Product

Resources

About