Synthesis and characterization of new hydrogels through copolymerization of N-acryloyl-tris-(hydroxymethyl)aminomethane and different crosslinking agents

Cuggino, Julio César; Igarzabal, Cecilia Inés Álvarez; Rueda, Juan Carlos; Quinzani, Lidia M.; Komber, Hartmut; Strumia, Miriam Cristina

doi:10.1016/j.eurpolymj.2008.09.010

Cited by 22 publications

(22 citation statements)

References 37 publications

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“…The starch-g-poly(sodium acrylate)/CNWs hydrogels nanocomposites were synthesized using different concentrations of N,N-methylenebisacrylamide (MBA), which presents an important role in the swelling characteristics of the hydrogel (Hazer et al 2008;Cuggino et al 2008). Crosslinkers are indispensable to form a superabsorbent hydrogel in order to prevent dissolution of the hydrophilic polymer chains in aqueous solution.…”

Section: Effects Of Crosslinker Contentmentioning

confidence: 99%

Superabsorbent hydrogel nanocomposites based on starch-g-poly(sodium acrylate) matrix filled with cellulose nanowhiskers

et al. 2012

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Superabsorbents hydrogel nanocomposites based on starch-g-poly(sodium acrylate) and cellulose nanowhiskers (CNWs) were synthesized. A set of experiments was performed to evaluate the influence of some factors such as NaAc/starch mass ratio, crosslinker, and nanowhiskers amount in the swelling capacity and swelling kinetics. Increasing the NaAc/starch mass ratio up to 7 leads to an increase in the water uptake at a maximum value, however, higher ratios decreased that value due to the increase of crosslinking points. Similarly, the incorporation of CNWs up to 10 wt% provided an improvement in the swelling due to the hydrophilic groups from cellobiose units. Further, the incorporation of CNWs diminishes the water uptake. Besides, the CNWs improved the mechanical properties. SEM images showed that CNWs increase the average porous size of composites. The composites presented good responsive behavior in relation to pH and salt presence allowing those materials suitable for many potential applications.

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Section: Effects Of Crosslinker Contentmentioning

confidence: 99%

Superabsorbent hydrogel nanocomposites based on starch-g-poly(sodium acrylate) matrix filled with cellulose nanowhiskers

et al. 2012

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“…[28] In general, several characteristics of the crosslinkers, such as hydrophilicity, length, chemical structure and reactivity will affect the hydrogel swelling behavior. [29] Microscopic properties of hydrogels obtained from dual crosslinking of polymer 3 and 4 with DT and MT were studied using FE-SEM. Dual crosslinked hydrogel showed a sponge-like microporous structure with a relatively nonuniform pore size distribution throughout the crosssection.…”

Section: Resultsmentioning

confidence: 99%

Design of Polyphosphazene Hydrogels with Improved Structural Properties by Use of Star‐Shaped Multithiol Crosslinkers

Potta

Chun²,

Song³

2011

Macromolecular Bioscience

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The feasibility of using a star-shaped crosslinker to produce a hydrogel with controlled mechanical properties and degradation rates was investigated. The aqueous blends of functional polymers and crosslinkers formed a solution at low temperature and a hydrogel with desired mechanical properties at body temperature. The introduction of star-shaped crosslinkers affected the microscopic and macroscopic properties of the hydrogel. The fabricated hydrogels could be suitable for many potential biomedical applications because of their injectability, tunable mechanical properties, controlled degradation rate and gel formation under physiological conditions.

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“…Similar experiments were repeated for every 5 minutes to study the kinetic water diffusivity behavior of both samples where F stands for the diffusion mechanism of water in the SAPs, calculated by using Equation (2) [21]:…”

Section: Kinetic Diffusivity Studymentioning

confidence: 99%

Properties of Controlled-Release-Water-Retention Fertilizer Coated with Carbonaceous-g-Poly(acrylic acid-co-acrylamide)Superabsorbent Polymer

Ghazali¹,

Jamar²,

Noordin³

et al. 2017

IJCEA

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Abstract-Fertilizer and water are very important in determining the production of agriculture nowadays. Apart of that, the excessive use of fertilizer in plantation somehow could leads to environmental pollution. The present study reported a preparation of controlled release water retention (CRWR) fertilizer coated with superabsorbent polymer (SAPs). The purpose of coating the fertilizer using SAPs is to enhance the utilization of fertilizer and reduce the environmental pollution. In this study, the synthesis of carbonaceous-SAPs was carried out via solution polymerization technique by using monomers of poly(acrylic acid) (AA) and acrylamide (AM), cross linker of methylene bisacrylamide (MBA) and initiator of ammonium peroxodisulfate (APS) that partially neutralized with sodium hydroxide (NaOH). The fertilizer granule then was coated with carbonaceous-SAPs which later known as CRWR fertilizer. The morphology and the bonding formation of the CRWR fertilizer were investigated by using Scanning Electron Microscopy (SEM) and Fourier Transform Infrared Spectrophotometer (FTIR), respectively. Moreover, the water absorbency and water retention in soil were conducted in order to investigate the efficiency of carbonaceous-SAPs on the properties of CRWR fertilizer. Based on the results, it was found that the CRWR fertilizer coated with carbonaceous-SAPs had higher water absorbency and water retention ability than the CRWR fertilizer without carbonaceous-SAPs. The addition of the carbonaceous filler in the formulation of SAP increase the water uptake compared to unfilled-SAP. Moreover, types of soil also play an important factor in water retention properties. CRWR fertilizer in organic soil results in higher water retention ability compared in top soil.

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Synthesis and characterization of new hydrogels through copolymerization of N-acryloyl-tris-(hydroxymethyl)aminomethane and different crosslinking agents

Cited by 22 publications

References 37 publications

Superabsorbent hydrogel nanocomposites based on starch-g-poly(sodium acrylate) matrix filled with cellulose nanowhiskers

Superabsorbent hydrogel nanocomposites based on starch-g-poly(sodium acrylate) matrix filled with cellulose nanowhiskers

Design of Polyphosphazene Hydrogels with Improved Structural Properties by Use of Star‐Shaped Multithiol Crosslinkers

Properties of Controlled-Release-Water-Retention Fertilizer Coated with Carbonaceous-g-Poly(acrylic acid-co-acrylamide)Superabsorbent Polymer

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