Synthesis, characterization, and swelling kinetic study of porous superabsorbent hydrogel nanocomposite based on sulfonated carboxymethylcellulose and silica nanoparticles

Olad, Ali; Zebhi, Hamid; Salari, Dariush; Mirmohseni, Abdolreza; Reyhanitabar, Adel

doi:10.1007/s10934-017-0543-6

Cited by 31 publications

(17 citation statements)

References 39 publications

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“…3, the FTIR spectrum of CMC has a broad absorption band at 3440 cm −1 which is attributed to the stretching vibrations of O-H bonds. Also, peaks at 2917 cm −1 , 1635 cm −1 and 1037 cm −1 are related to the stretching vibrations of C-H bonds in methylene groups, -C=O bonds of carboxyl groups and β-1,4-glycosidic bonds in CMC structure, respectively [1]. As it is seen in FTIR spectrum of SCMC, absorbing bands at 1250 cm −1 and 620 cm −1 are attributed to the asymmetric stretching vibrations of S=O functional groups.…”

Section: Ftir Studiesmentioning

confidence: 86%

“…Additionally, there is a small peak at about 1000 cm −1 which is belonged to the symmetric stretching vibrations of S=O groups. A strong absorbing band at 1120 cm −1 is attributed to the symmetric stretching vibrations of the C-O-S groups in SCMC structure [1]. As shown in Fig.…”

Section: Ftir Studiesmentioning

confidence: 88%

“…Hydrogels are 3D cross linked polymer networks which have water retention behavior due to the presence of numerous hydrophilic functional groups in their structure [1][2][3]. These polymeric systems have various applications in the fields of agriculture and horticulture [4][5][6], wound dressings [7,8], hygienic and cosmetic materials [9][10][11], water treatment [12] and medicine [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

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Polymer/zeolite nano-composite hydrogels as promising water reservoir materials: effect of clinoptilolite content on physicochemical properties

2019

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In this work, with the aim of improving the water uptake behavior and mechanical properties, a novel nano-composite hydrogel system was synthesized using clinoptilolite as a semi-layered zeolite. Accordingly, the gelatin/SCMC-g-poly (AA-co-AAm)/clinoptilolite semi-IPN nano-composite hydrogel samples were synthesized and studied. The FTIR, XRD, SEM and EDX analysis were accomplished to confirm the successful synthesis of the nano-composite hydrogel samples. Additionally, to investigate the effect of clinoptilolite content on water uptake properties and gel characteristics of the synthesized nano-composite hydrogel samples, water absorption kinetics studies and rheological evaluations were carried out. It is obtained that, there is an optimum amount for additive content which can improve the hydrogel properties. Results showed that nano-composite hydrogel sample with 5% W/W of clinoptilolite with respect to the gelatin amount has the best efficiency from the point of view of the water absorption properties and gel characteristics. This phenomenon is related to the creation of physical cross linking in the hydrogels' structure which leads to the creation of porous hydrogels.

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Section: Ftir Studiesmentioning

confidence: 86%

Section: Ftir Studiesmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

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Polymer/zeolite nano-composite hydrogels as promising water reservoir materials: effect of clinoptilolite content on physicochemical properties

2019

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“…Swollen gel was weighed at different time interval. The surface water was removed by filter paper [3]. The swelling equilibrium ratio was calculated using the following equation:…”

Section: A Swelling Testmentioning

confidence: 99%

Fabrication of PVA/Ag Nanocomposite Hydrogels using Sol Gel Technique: Swelling and Removal of Chromium Ion Studies

Rajam¹

2019

IJRASET

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The PVA/Ag nanocomposite hydrogel with 3D network has been fabricated via sol-gel method. The fabricated nanocomposites were well characterized by FT-IR, SEM, TEM and XRD. The swelling equilibrium has also been observed with various pH medium. Parallel adsorption studies have also been carried out with a different time, pH and dosage of adsorbent. The maximum removal of chromium for this sample is greater than other compound. Therefore, in this PVA/Ag nanocomposite hydrogel has a potential tendency for the removal of hexavalent chromium ion from industrial effluent wastewater.

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“…Hydrogels are three-dimensional polymer networks with high hydrophilicity, which can absorb and retain high amounts of water. [1][2][3][4] There are various biomedical, agricultural, and hygienic applications for hydrogels, which are significantly affected by their poor mechanical and water retention properties. 5,6 Also, some factors such as biodegradability and biocompatibility are very important for hydrogels used in agriculture, water treatment, hygienic products, and biomedical products.…”

Section: Introductionmentioning

confidence: 99%

Physicochemical evaluation of nanocomposite hydrogels with covalently incorporated poly(vinyl alcohol) functionalized graphene oxide

Olad

Eslamzadeh

Mirmohseni

2019

J of Applied Polymer Sci

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To avoid the negative effect of graphene oxide (GO) nanosheets aggregation in aqueous solutions on physicochemical properties of GO incorporated nanocomposite hydrogels, poly(vinyl alcohol)-functionalized GO (GO-es-PVA) are synthesized and are used for preparation of nanocomposite hydrogels. By graft copolymerization of GO-es-PVA with poly(AA-co-AAm) chains, the nanocomposite hydrogel samples with covalently incorporated GO-es-PVA are achieved. FTIR spectroscopy, XRD analysis, and SEM and EDAX techniques confirm successful synthesis process. It is clear that GO-es-PVA content has significant effect on physicochemical properties of nanocomposite hydrogels, such as improvement of the water uptake properties, porosity, and gel strength. The hydrogel sample with 1:80 mass ratio of GO-es-PVA/AAm has the best physicochemical properties due to the optimum amount of GO-es-PVA, which gives the hydrogel proper viscoelasticity as well as fine porosity and water uptake rate. Interpenetration of PVA chains into the polymeric networks makes the movement of the polymer chains easier, which leads to softer polymeric networks. This phenomenon is called plasticizing effect. The plasticizing nature of PVA and its high hydrophilicity are the main reasons for the fine physicochemical properties.

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Synthesis, characterization, and swelling kinetic study of porous superabsorbent hydrogel nanocomposite based on sulfonated carboxymethylcellulose and silica nanoparticles

Cited by 31 publications

References 39 publications

Polymer/zeolite nano-composite hydrogels as promising water reservoir materials: effect of clinoptilolite content on physicochemical properties

Polymer/zeolite nano-composite hydrogels as promising water reservoir materials: effect of clinoptilolite content on physicochemical properties

Fabrication of PVA/Ag Nanocomposite Hydrogels using Sol Gel Technique: Swelling and Removal of Chromium Ion Studies

Physicochemical evaluation of nanocomposite hydrogels with covalently incorporated poly(vinyl alcohol) functionalized graphene oxide

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