نتایج جستجو برای: superabsorbent polymer

تعداد نتایج: 93400  

Journal: :Scientific Reports 2021

Abstract Biological macroscopic assemblies have inspired researchers to utilize molecular recognition develop smart materials in these decades. Recently, self-assemblies based on been realized using millimeter-scale hydrogel pieces possessing moieties. During the study self-assembly recognition, we noticed that shape of might be dependent host–guest pair. In this study, were thus motivated form...

Journal: :Agronomy 2023

Water deficit is one of the major limiting factors seed crop germination and productivity. Consequently, superabsorbent polymers (SAPs) are among several technologies that enhance water use efficiency, leading to worthy germination. The objective this study was investigate potential effect three rates SAPs (0.0%, 0.5%, 1.0% w/w) on seedling emergence barley fenugreek sown in a sandy soil using ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2010
ali pourjavadi rouhollah soleyman ghasem rezanejad bardajee

a hydrophilic macromolecular network is prepared by performing graft copolymerization of poly (sodium acrylate) chains onto salep and silica gel. the reaction parameters affecting the water absorbency of the superabsorbent composite were optimized using taguchi method. ft-ir spectroscopy and thermo gravimetric analysis (tga) were used for confirming the structure of the final product and morpho...

Journal: :علوم و تکنولوژی پلیمر 0
کوروش کبیری سیاوش نفیسی محمد جلال الدین ظهوریان مهر علی اکبر یوسفی

long-chain diacrylate crosslinkers based on linear α,ω-diols were synthesized and characterized using ftir and 1h nmr spectroscopy. the highest reaction yield (99.5%) was due to polyethylene glycol diacrylate 1000 (pegda-1000). then, kaolin-containing poly(potassium acrylate-acrylic acid) superabsorbent composites and kaolin-free counterparts were synthesized using pegda-1000.the effect of the ...

Journal: :Science and technology of advanced materials 2010
Wenbo Wang Yuru Kang Aiqin Wang

A series of novel guar gum-g-poly(sodium acrylate-co-styrene)/muscovite (GG-g-P(NaA-co-St)/MVT) superabsorbent composites were prepared by free-radical grafting copolymerization of natural guar gum (GG), partially neutralized acrylic acid (NaA), styrene (St) and muscovite (MVT) using ammonium persulfate (APS) as the initiator and N,N-methylene-bis-acrylamide (MBA) as the crosslinker. Optical ab...

Journal: :Journal of Analytical Science and Technology 2023

Abstract The efficient extraction of lipid species in plasma was developed for quick sample preparation and accurate analysis, using spin column with superabsorbent polymer beads (SAP), as the improvement previous SAP method reported before. modified (mSAP) is composed simple steps, including loading, swelling, solvent addition, centrifugation, drying resulting solution. mSAP offers several adv...

Journal: :Journal of Cleaner Production 2023

Replacing the current mainly fossil-based, disposable, and non-biodegradable sanitary products with sustainable, functional alternatives is an industry priority. Suggested biobased require evaluation of their actual impact on greenhouse gas (GHG) emissions. We evaluated GHG emissions baby diapers as most consumed product, using a biodegradable functionalized protein superabsorbent polymer (bioS...

Journal: :Molecules 2012
Shaukat Ali Shahid Ansar Ahmad Qidwai Farooq Anwar Inam Ullah Umer Rashid

The use of some novel and efficient crop nutrient-based superabsorbent hydrogel nanocomposites (SHNCs), is currently becoming increasingly important to improve the crop yield and productivity, due to their water retention properties. In the present study a poly(Acrylamide-co-acrylic acid)/AlZnFe2O4 superabsorbent hydrogel nanocomposite was synthesized and its physical properties characterized u...

2011
MOHAMMAD SADEGHI BEHROUZ HEIDARI

The present work focused on the design of drug delivery system (DDS) based on a pH-,saltand temperature sensitive superabsorbent hydrogel.The novel biopolymer-based superabsorbent hydrogels were prepared by grafting crosslinked poly(AA-co-BuMC) chains onto CMC backbones through a free radical polymerization method. the hydrogel,s structure was confirmed using FTIR spectroscopy. Results from sca...

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