Synthesis and characterization of superabsorbent composite by using glow discharge electrolysis plasma

Gao, Jinzhang; Wang, Aixiang; Li, Yan; Fu, Yan; Wu, Jian‐Lin; Wang, Youdi; Wang, Yujing

doi:10.1016/j.reactfunctpolym.2008.06.018

Cited by 56 publications

(28 citation statements)

References 17 publications

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“…Novel possibilities for creating hydrogel systems based on glow discharge plasma polymerization of volatile monomers in gas phase [41], solid phase plasma polymerization [42], and plasma polymerization in liquids [43] have been reported. Among them, plasma polymerization in liquids and in contact with liquids demonstrates great technological potential given that it can be performed without using chemical initiators or/and even without cross-linking agents.…”

Section: Novel Strategies For Pnipaam-based Hydrogel Synthesismentioning

confidence: 99%

Novel Synthesis Pathways for PNIPAAm-Based Hydrogels and Their Application in Thermosensitive Textiles

Jovančić

Petruš̆̌̌̌ić

Molina

2014

Handbook of Smart Textiles

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The research focus is lately directed towards the development of the thermosensitive textiles with advanced functionalities. As sources of inspiration for a progress in the field of these innovative materials, stimuli-sensitive polymer engineering, plasma surface engineering, and nanotechnology have been extensively explored. In this work, the polymerization methods for synthesis of Poly(N-isopropylacrylamide), PNIPAAm-based hydrogels, incorporating natural biopolymers (chitosan and b-cyclodextrin), for achieving dual temperature/pH sensitivity and improvement of relevant loading capacity towards specific guest molecules are outlined. These PNIPAAm-based hydrogels are of great interest for biomedical applications (transdermal drug delivery, cell encapsulation, wound dressing, tissue repair, etc.) and intelligent stimuli-sensitive textile coatings for moisture regain control, antimicrobial properties, water and/or oil repellency, and fragrance release. The strategies for synthesis of PNIPAAm-based hydrogels (macro and micro forms) and their proper integration onto textiles through the plasma surface modification, graft polymerization, and coatings are discussed. Novel possibilities for creating hydrogels based on atmospheric plasma polymerization of NIPAAm monomers in liquids have alos been reported. Plasma polymerization in liquids demonstrated a great technological potential given that it may be performed without the use of chemical initiators and even without cross-linking agents, offering multiple advantages over the conventional hydrothermal polymerization methods. Further research on adequate chemical and physical structures of PNIPAAm-based hydrogels and methods of their applications in textiles could boost a progress in the domain of smart textiles, implying novel performances and end uses.

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Section: Novel Strategies For Pnipaam-based Hydrogel Synthesismentioning

confidence: 99%

Novel Synthesis Pathways for PNIPAAm-Based Hydrogels and Their Application in Thermosensitive Textiles

Jovančić

Petruš̆̌̌̌ić

Molina

2014

Handbook of Smart Textiles

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“…The ability of water absorption is due to the hydrophilic nature of the functional groups, such as alcohols, carboxyls, sulphonic group, etc., on the polymer backbone. Superabsorbents hydrogels are crosslinked hydrophilic polymer networks that can absorb and retain large quantities of aqueous fluids, reaches thousands times of the initial weight, even under certain pressure [1][2][3]. Due to their excellent properties, superabsorbents hydrogels are used for many applications, including agriculture [4][5][6], horticulture, hygienic products [7], waste water treatment [8][9][10], drug delivery [11,12], etc.…”

Section: Introductionmentioning

confidence: 99%

Radiation synthesis and characterization of super absorbent hydrogels for controlled release of some agrochemicals

Maziad

Fadl

El-Kelesh

et al. 2015

J Radioanal Nucl Chem

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Superabsorbent copolymers of carboxymethyl cellulose/polyacrylamide (CMC/PAM) and carboxymethyl celullose/polyacrylamide/silica (CMC/PAM/Si) were synthesized using a c-irradiation technique. The effects of irradiation dose, content of CMC, AM, and Si on swelling percentage of the produced hydrogels were evaluated. It was found that the maximum swelling percent increased dramatically up to 12,000 % at pH 12 with increasing content of silica up to 5 % in the CMC/PAM/Si composite hydrogel. The prepared copolymers were characterized by FTIR, and SEM techniques. In order to evaluate their controlled release potentials, different hydrogels were loaded with potassium nitrate (KNO 3 ), and the release of the KNO 3 was studied and evaluated at various pH values.

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“…Plasma generation in a liquid is currently being investigated for application in a variety of fields such as nanoparticle synthesis, 1,2 hydrogen production, 3 surface modification, 4 polymerization, 5 and the decomposition of harmful dissolved substances. [6][7][8][9] To establish the technologies for plasma in liquid, plasma diagnosis has become much more important.…”

Section: Introductionmentioning

confidence: 99%

Excitation temperature of a solution plasma during nanoparticle synthesis

Saito

Nakasugi

Akiyama

2014

Journal of Applied Physics

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Excitation temperature of a solution plasma was investigated by spectroscopic measurements to control the nanoparticle synthesis. In the experiments, the effects of edge shielding, applied voltage, and electrode material on the plasma were investigated. When the edge of the Ni electrode wire was shielded by a quartz glass tube, the plasma was uniformly generated together with metallic Ni nanoparticles. The emission spectrum of this electrode contained OH, H-alpha, H-beta, Na, O, and Ni lines. Without an edge-shielded electrode, the continuous infrared radiation emitted at the edge created a high temperature on the electrode surface, producing oxidized coarse particles as a result. The excitation temperature was estimated from the Boltzmann plot. When the voltages were varied at the edge-shielded electrode with low average surface temperature by using different electrolyte concentrations, the excitation temperature of current-concentration spots increased with an increase in the voltage. The size of the Ni nanoparticles decreased at high excitation temperatures. Although the formation of nanoparticles via melting and solidification of the electrode surface has been considered in the past, vaporization of the electrode surface could occur at a high excitation temperature to produce small particles. Moreover, we studied the effects of electrodes of Ti, Fe, Ni, Cu, Zn, Zr, Nb, Mo, Pd, Ag, W, Pt, Au, and various alloys of stainless steel and Cu-Ni alloys. With the exception of Ti, the excitation temperatures ranged from 3500 to 5500 K and the particle size depended on both the excitation temperature and electrode-material properties

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Synthesis and characterization of superabsorbent composite by using glow discharge electrolysis plasma

Cited by 56 publications

References 17 publications

Novel Synthesis Pathways for PNIPAAm-Based Hydrogels and Their Application in Thermosensitive Textiles

Novel Synthesis Pathways for PNIPAAm-Based Hydrogels and Their Application in Thermosensitive Textiles

Radiation synthesis and characterization of super absorbent hydrogels for controlled release of some agrochemicals

Excitation temperature of a solution plasma during nanoparticle synthesis

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