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starch-g-polyacrylamide function

  • CiteSeerX — Starch-g-Polyacrylamide

    CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Partial hydrolysis of the Starch-g-Polyacrylamide was carried out in alkaline medium. Three grades of partially hydrolysed products were synthesized by varying the reaction parameters. The neutralization equivalent of these products was determined by titrating with standard NaOH solution.

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  • Synthesis and evaluation of acryloylated starch-g-poly ...

    Starch is a natural biopolymer that subjected to various chemical modifications through different industrial applications. Molecular structure of starch allow its grafting with different vinyl monomers in the presence of crosslinking agents to synthesize cross-linked hydrogels, which used in enhanced oil recovery (EOR) applications, water shutoff and drag reduction.

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  • Viscometric studies of starch‐ g ‐polyacrylamide ...

    1993-2-15 · Composites of starch‐g‐polyacrylamide, starch, and polyacrylamide have been prepared by gamma radiation‐initiated polymerization of acrylamide in the presence of starch in aqueous medium. The polymerization was studied as a function of the (i) amount of water (ii) …

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  • Starch-g-Polyacrylamide - CORE

    The flocculation performance of Hyd St 3 was also compared with four commercially available flocculants Mag.156, Mag.155, Mag.351 and Rish 440 HV in 5 wt % iron ore and 0.25wt % of silica suspension. The flocculation performance of Hyd St 3 was also compared with Starch-g-polyacrylamide ( St-g-PAM) and Starch in 0.25wt % silica suspension.

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  • Dual starch–polyacrylamide polymer system for

    2017-11-1 · A starch–PAM system reduces PAM usage for conventional and ballasted flocculation. With 0.4 mg starch/L, PAM is reduced by 69% (surface water) and 45% (wastewater). With the dual system (G: 165-200 s −1 ), floc resistance is not impacted. Coaddition of a starch-PAM blend solution could be used to reduce the use of PAM.

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  • Preparation and Characterization of Potato Starch ...

    Cross-linked potato starch (StMBA) and starch-g-polyacrylamide materials with a high content of natural polymer from 60 to 90 wt.% (St60–St90) were synthesized by double chemical-chemical modification (grafting and cross-linking). Eco-friendly starch absorbents were tested for removal of Cu 2+ and Fe 3+ from aqueous solutions.

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  • Rheological and thermal properties of saponified

    2014-1-17 · Cassava starch-graft-poly(acrylamide) superabsorbent polymers (SAPs) with varying absorbencies were synthesized. Weight average molecular weight ( M w ) of the hydrolyzed starch-graft-copolymers ranged from 1.6 × 10 6 to 2.8 × 10 6 g/mol, the largest being shown by the sample with highest percentage grafting.

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  • Controlled release of phosphorous fertilizer bound to ...

    2018-9-1 · A controlled release fertilizer system based on phosphate bound-carboxymethyl starch-graft-polyacrylamide (P-CMS-g-PAM) has been prepared in order to deliver the phosphate fertilizer to the plant at a constant rate thereby. This system aims to increase fertilizer phosphorus use efficiency (FPUE) and maintain a hydration level for the plant at the same time.

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  • Synthesis, characterization and evaluation of ...

    2016-7-1 · A dual-function starch-based flocculant, carboxymethyl-starch- graft -aminomethylated-polyacrylamide (CMS- g -APAM), was designed and prepared by a simple method. The structure and solution properties of CMS- g -APAM were characterized by fourier transform infrared spectroscopy, 1 H nuclear magnetic resonance, and zeta-potential measurements.

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  • Focculation of Paper Mill Effluents Using Starch-G ...

    2019-7-26 · The synthesized starch-g-polyacrylamide has shown effectiveness at par with the Magnafloc-1011 while using very small quantity of the flocculant. References 1. Deshmukh SR, Singh RP (1987) Drag reduction effectiveness, shear stability and biodegradation resistance of …

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  • Starch-g-Polyacrylamide - CORE

    The flocculation performance of Hyd St 3 was also compared with four commercially available flocculants Mag.156, Mag.155, Mag.351 and Rish 440 HV in 5 wt % iron ore and 0.25wt % of silica suspension. The flocculation performance of Hyd St 3 was also compared with Starch-g-polyacrylamide ( St-g-PAM) and Starch in 0.25wt % silica suspension.

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  • Starch-graft-polyacrylamide copolymer /Fe3O4

    2021-1-15 · Starch-g-polyacrylamide copolymer and its nanocomposite with Fe3O4 and graphene oxide have been successfully synthesized. The synthesized samples were characterized using FTIR, XRD, SEM, HRTEM, and VSM. The factors that affect the adsorption efficiency of samples for Ni(II) ions from aqueous solutions as pH, initial Ni(II) ions concentration, contact time and temperature have been …

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  • EP0147380A2 - Functionalized polyacrylamide grafted

    @ A functionalised polyacrylamide grafted starch polymer useful as a paper wet strength additive wherein at least 5 weight percent of the corresponding polyacrylamide grafted starch polymer is polyacrylamide and comprising substituents derived from one or more materials containing two or more aldehyde units, e.g…

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  • Inverse Emulsion of Starch‐graft‐Polyacrylamide - Lu ...

    2003-5-6 · An inverse emulsion of cationic starch‐graft‐polyacrylamide was prepared by inverse emulsion polymerization and a subsequent Mannich reaction. The copolymerization was carried out using potassium persulfate as initiator. The reaction conditions and factors affecting emulsion stability were studied. Experiments showed that a high solids ...

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  • Preparation and Characterization of Potato Starch ...

    Cross-linked potato starch (StMBA) and starch-g-polyacrylamide materials with a high content of natural polymer from 60 to 90 wt.% (St60-St90) were synthesized by double chemical-chemical modification (grafting and cross-linking). Eco-friendly starch absorbents were tested for removal of Cu 2+ …

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  • Polyacrylamide-grafted legume starch for wastewater ...

    2017-2-27 · Polyacrylamide as traditional flocculant begins to draw the public awareness because of its non-biodegradable nature which may cause the long-term environmental degradation problems. A new high-efficient flocculant was synthesized by legume starch and acrylamide to satisfy the demand of coalmine wastewater treatment. Grafting acrylamide onto mung bean starch was investigated and the ...

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  • Synthesis, characterization and evaluation of ...

    Adhesive composition comprising starch, dextrine and a polyacrylamide. The composition is carried by water; but, when the composition is applied to a substrate, the water is evaporated to produce a water activatable adhesive. Thus, the composition is suitable for application to a paper backing to form an adhesive tape. Method of preparing the adhesive from a dry polyacrylamide starting ...

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  • US4105824A - Starch-dextrine-polyacrylamide

    Starch gel is one of a wide variety of supporting media that can be used for horizontal zone electrophoresis. Such gels are prepared by heating and cooling a quantity of partially hydrolyzed starch in an appropriate buffer solution. The choice of buffer is somewhat empirical and a wide variety of co …

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  • Swelling behaviors of starch-g-polyacrylamide hydrogel ...

    2017-10-6 · starch-g-PAAm at pH 3, 5, 7, 9, 11, 13 were found 920, 972, 1140, 1202, 1265 and 2350 respectively. For polyacrylamide these values were found 1795, 1870, 1988, 2390, 2714 and 4207. The swelling behavior of PAAm, starch-g-PAAm and saponified starch-g-PAAm hydrogels are presented in figure 2. The saponified

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  • Synthesis of starch‐ g ‐poly(acrylamide‐co‐sodium ...

    1992-5-15 · Studies were conducted on grafting of acrylamide (AM) and sodium allylsulfonate (SAS) onto cornstarch utilizing Ce(IV) as initiator. The influence of synthetic variables on percent grafting and grafting efficiency have been discussed. The starch‐g‐poly(AM‐co‐SAS) samples prepared by this method were characterized by IR spectroscopy, scanning electron micrograph, and elemental analysis ...

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  • STARCH/POLYACRYLAMIDE GRAFT COPOLYMERS – THE

    Starch/polyacrylamide graft copolymers – the manufacture and fl occulation effi ciency 227 and/or aromatic substituents (Figure 2). These cations determine characteristic features of modifi ed clays [4]. Reactive extrusion is an alternative method to batch slurry processes for starch modifi cation.

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  • Preparation and Adsorption Properties of Starch-g ...

    By means of solution polymerization, a series of cross-linked starch-g-polyacrylamide montmorillonite (St-g-PAM/MMT) nanocomposites were prepared and used to adsorb methylene blue (MB). The effects of different preparation conditions on the adsorption capacity of the nanocomposites were investigated. The experimental results demonstrated that the prepared St-g-PAM/MMT nanocomposites were ...

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  • Performance Test of Starch-g-Polyacrylamide Synthesized ...

    Article Performance Test of Starch-g-Polyacrylamide Synthesized through Grafting as a Flocculant in Artificial Wastewater Treatment Mujtahid Kaavessina2,a, Ina Fatimah 1, Suci Soraya1 1 Chemical Engineering, Universitas Sebelas Maret, Surakarta, 57126, Indonesia 2 Bachelor Program of Chemical Engineering, Universitas Sebelas Maret, Surakarta, 57126, Indonesia

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  • Microwave assisted synthesis of polyacrylamide

    2011-1-1 · Polyacrylamide grafted starch (St-g-PAM) was made by a novel method of synthesis, involving combination of microwave radiation and a chemical free radical initiator (ceric ammonium nitrate) to initiate grafting reaction. This method (microwave assisted synthesis) is quick, highly reliable, reproducible and yields high quality product as ...

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  • Study on Adsorption of Methylene Blue by Sarch-g ...

    By means of grafting polymerization, cross-linked starch-g-polyacrylamide (starch-g-PAM) was prepared and used to adsorb methylene blue (MB). Adsorption isotherm and kinetic of the sorption process were studied. The experimental results demonstrated that the prepared starch-g-PAM was an effective adsorbent for removal of MB from aqueous solution.

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  • Biochemical and molecular characterization of a novel ...

    development. SDS-polyacrylamide gel (7.5%) of starch extracted from individual tubers of (1) 0.2 g, (2) 0.9 g, (3) 3.1 g, (4) 13 g and (5) 95 g. Starch was purified from tubers of actively growing plants by a scaled-down version of that described in Experimental procedures. Each track contains

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  • EVALUATION OF INSOLUBLE XANTHATE

    2016-2-29 · Fig.7 Swelling behavior of starch-g-poly(acrylic acid) hydrogel and starch-g-poly(acrylic acid)/organo-mordenite hydrogel composite (10 wt-%) as a function of time in distilled water Fig.8 Swelling behavior of the starch-g-poly(acrylic acid) hydrogel and the starch-g-poly(acrylic acid)/organo-mordenite hydrogel composite (10 wt-%) in distilled water (a) t W t versus t and (b) ln( W t W ∞ ...

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  • STARCH/POLYACRYLAMIDE GRAFT COPOLYMERS – THE

    Starch/polyacrylamide graft copolymers – the manufacture and fl occulation effi ciency 227 and/or aromatic substituents (Figure 2). These cations determine characteristic features of modifi ed clays [4]. Reactive extrusion is an alternative method to batch slurry processes for starch modifi cation.

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  • Preparation of cassava starch-graft-polyacrylamide ...

    Abstract Cassava starch- g -polyacrylamide (PAM) was successfully prepared by a reactive batch processing using a specially designed batch reactor resulting in a superabsorbent polymer (SAP) with water absorption of 605 g/g being obtained under the optimized reaction conditions. The occurrence of a graft copolymer was confirmed by FT-IR spectra, where it was found to exhibit all characteristic ...

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  • Preparation and Characterization of Potato Starch ...

    2020-10-31 · Abstract. Cross-linked potato starch (StMBA) and starch-g-polyacrylamide materials with a high content of natural polymer from 60 to 90 wt.% (St60–St90) were synthesized by double chemical-chemical modification (grafting and cross-linking). Eco-friendly starch absorbents were tested for removal of Cu 2+ and Fe 3+ from aqueous solutions.

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  • Performance Test of Starch-g-Polyacrylamide

    Performance Test of Starch-g-Polyacrylamide Synthesized through Grafting as a Flocculant in Artificial Wastewater Treatment Flocculation is one of the steps to get clean water. Grafted flocculant was successfully synthesized by combining the benefits of synthetic polymers (polyacrylamide) and natural polymers (cassava starch).

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  • Maize Starch-g-poly(n-vinylimidazole) Synthesis and its ...

    2019-7-12 · Polyacrylamide grafted starch (St-g-PAM) has been synthesized by microwave assisted method involving a synergism of microwave radiation and ceric ammonium nitrate (CAN) to initiate the grafting reaction. The higher the Maize Starch-g-poly(n-vinylimidazole) Synthesis and its Application in

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  • Transparent, flexible, and multifunctional starch-based ...

    2021-5-17 · Herein, a facile one-step strategy is proposed to fabricate transparent, highly flexible, and multifunctional starch/polyacrylamide double-network hydrogels based on natural renewable starch. The resultant hydrogels exhibit fast self-adhesive ability and present high flexibility attributing to the double network consisting of cross-linked ...

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  • US4105824A - Starch-dextrine-polyacrylamide

    Adhesive composition comprising starch, dextrine and a polyacrylamide. The composition is carried by water; but, when the composition is applied to a substrate, the water is evaporated to produce a water activatable adhesive. Thus, the composition is suitable for application to a paper backing to form an adhesive tape. Method of preparing the adhesive from a dry polyacrylamide starting ...

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  • Chemical modification of starch and its application as

    2021-3-12 · Starch Derivatives that Contribute Significantly to the Bonding and Antibacterial Character of Recycled Fibers Abdus Salam,†,‡,§ Lucian Lucia,*,†,‡,∥ and Hasan Jameel† †Department of Forest Biomaterials, North Carolina State University, Raleigh, North Carolina 27695-8005, United States ‡Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695 ...

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  • Starch Derivatives that Contribute Significantly to the ...

    2019-7-12 · Glucoamylase (EC 3.2.1.3) is one of the best known amylases but with unique starch hydrolyzing property among the amylase enzyme family in that it can completely hydrolyze starch and other 1,4-linked glucose-oligosaccharides by attacking both α-(1,4) and α-(1,6) glycosidic bonds in starch with direct formation of glucose [3]. In fact, glucose ...

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  • Activated starch as an alternative to polyacrylamide

    2018-6-15 · Compared to two typical polyacrylamide-based polymers, Magnafloc ® LT22S and Superfloc ® A-100, at an alum dose of 0.95 mg Al/L, activated starch could reach a similarly optimal unit filter run volume (∼116 m 3 /m 2), while the required dose (0.48 mg/L) was approximately 2–10 times higher than those for the other two types of polymers ...

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  • Method for manufacturing grafted polyacrylamide

    As shown in FIG. 1, starch or micro-crystalline cellulose used as back-bone, using potassium permanganate as initiator, graft-copolymerizes with acrylamide to produce starch-g-polyacrylamide or micro-crystalline cellulose-g-polyacrylamide, wherein, the graft copolymer as basic polymer, after hydrolyzed with sodium hydroxide, is cationized by ...

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  • Flocculation and Color Removal Performances of ...

    2017-2-13 · Starch-g-polyacrylamide (St-g-PAM) and Starch-g- poly (N, N-dimethylacryl amide) (St-g-PDMA) were prepared by using acrylamide (AM) and N, N-dimethylacrylamide (DMA) by Ce (IV) ion induced aqueous polymerization technique. Various grafting parameters were optimized. The so prepared graft copolymers were characterized by fourier transform infrared spectroscopy (FTIR) spectroscopy, …

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  • Pembuatan Flokulan Starch-Graft-Polyacrylamide

    Pencangkokan polyacrylamide pada starch dalam pembuatan flokulan non-ionik dengan metode grafting to diharapkan dapat menghasilkan flokulan yang memiliki sifat unggul dari bahan pembentuknya dan mampu memenuhi kebutuhan dalam negeri untuk proses ...

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  • Synthesis of a novel arginine-modified starch resin and ...

    2.2 Preparation of acrylamide gra starch resin (StAM) St (60.00 g) was dispersed in distilled water (500 mL) and transferredtoathree-neck ask,heatedat85 Cfor30min,and then cooled to 65 C. Polyacrylamide (35 g), ammonium per-sulfate (1.20 g) and sodium bisulfate (0.30 g) were dissolved in a certain volume of distilled water and added dropwise,

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  • Evaluation of hydrophobically associating cationic

    2018-10-1 · 1) crosslinked starch-g-hydrolyzed polyacrylnitrile. 交联淀粉接枝水解聚丙烯腈. 2) hydrolyzed product of graftion copolymer. 淀粉-丙烯腈接枝共聚体水解产物. 3) starch polyacrylonitrile graft copolymer. 淀粉接枝丙烯腈共聚物. 4) starch-g-polyacrylamide crosslinking gelling fluid. 淀粉接枝聚丙烯 …

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  • Chemical modification of starch and its application as

    2012-2-15 · Starch is one of the most abundant natural polymers in the world, and as an important derivative of starch, cationic polyacrylamide-grafted starch (St-g-CPAM) has been widely used in many fields such as paper making, spinning, petroleum well drilling, medicine

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  • Investigation of the function of branching enzymes I, IIa ...

    2020-10-13 · Investigation of the function of branching enzymes I, IIa, and IIb in the determination of amylopectin ... PAGE Polyacrylamide gel electrophorhesis PL sample of soluble extract loaded onto column (pre-load) ... Starch is a homopolymer of glucose …

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  • Industrial Markets For Starch - Bangor University

    2006-11-26 · The UK market characterised as a function of starting materials 10 3.1.5. Starch import dependency 11 ... the polyacrylamide used in the UK would justify construction of a starch-processing plant. ... from starch fermentation (e.g., itaconic acid) as building blocks for organic chemistry. 4

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  • Comparative studies of seed enzymes of species of ...

    2020-4-2 · 140 Starch gel electrophoretic catalase spectra of a comparison between the possible parentals, their synthetic mixtures, and the allotetraploids » . , e . . 49 15* Polyacrylamide gel electrophoretic esterase spectra of a comparison between G0 hirsutum var„ Acala 44-10-1, 2(AD)-£, 'G* sturtianum var, sturtianum

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  • Composite Hydrogel of Poly(acrylamide) and Starch as ...

    2020-11-16 · Ana V. Torres-Figueroa, Cinthia J. Pérez-Martínez, Teresa del Castillo-Castro, Enrique Bolado-Martínez, María A. G. Corella-Madueño, Alejandro M. García-Alegría, Tania E. Lara-Ceniceros, Lorena Armenta-Villegas, ' Composite Hydrogel of Poly(acrylamide) and Starch as Potential System for Controlled Release of Amoxicillin and Inhibition of Bacterial Growth ', Journal of Chemistry,. vol ...

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  • Adsorption of polyacrylamide on oxide minerals

    2003-2-21 · at the Tilden Mines, where starch is added to flocculate selectively the iron oxide from silica in the d~liming stage prior to flotation. 1 Another example is the microflotation of a mixture of hematite and quartz using dodecylamine where polyacrylamide is used to depress hematite selec-tively while quartz is completely floated. 2 The reason for

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  • Deficiency of Starch Synthase IIIa and IVb Alters

    G, Starch granules. Confocal ... A proposed model for compound-type starch granule synthesis suggests that the SLS lattice separating starch granules and the envelope function together as a mold that casts growing ... respectively. SS activity staining was performed on 7.5% (w/w) polyacrylamide gels containing 0.8% (w/v) oyster ...

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  • Role of Molecular Entanglements in Starch Fiber

    2021-3-12 · Flow curves of Gelose 80 starch in 97.5, 95, 92.5, 90, 85, 80, 75, and 70% (v/v) DMSO as a function of starch concentration at 20 °C. Flow curves of Hylon VII starch, Hylon V starch, Mung bean starch, Melojel starch, and Amioca starch in 95% (v/v) DMSO as a function of starch …

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  • A Practical Approach on SDS PAGE for Separation of Protein

    2020-4-19 · alternative to starch gels [3, 4], thus developing polyacrylamide gel electrophoresis or PAGE. The inclusion of ionic detergent Sodium Dodecyl Sulphate (SDS) to the gel and the sample was an important addition to this work. Shapiro et al. were one of the first to make use of this approach [5]. Laemmli showed that proteins

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  • Novel mutant alleles of the starch synthesis gene

    2017-5-8 · Transient starch provides carbon and energy for plant growth, and its synthesis is regulated by the joint action of a series of enzymes. Starch synthesis IV (SSIV) is one of the important starch synthase isoforms, but its impact on wheat starch synthesis has not yet been reported due to the lack of mutant lines. Using the TILLING approach, we identified 54 mutations in the wheat gene TaSSIVb-D ...

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  • Best Practices Guidance for the Use of Anionic ...

    2018-4-4 · Natural (e.g. starch, rubber, DNA, proteins) Synthetic (e.g. nylon, teflon, PVC, polyacrylamide) Semi-synthetic (e.g. vulcanized rubber, chitosan) What are polymers? • Polymers can also be flocculants and coagulants. • A polymer flocculant adsorbs onto suspended particles and forms bridges between them, creating larger aggregates.

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  • On the Use of Iron Chloride and Starch for

    2021-7-10 · Filtration Reducer (ZOD-FLO TROL) is a kind of crosslinking starch. Crosslinking starch reduced its light transmittance, enhanced acid alkali-resistance, resistant to mechanical processing, the shear resistance and performance of gel.

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  • drilling fluid additives thickener

    The gelatinized starch was made from a mixture of 10 g starch and 1 g NaOH in 1 L of DI water at 65°C until a homogenous gel was obtained. The raw water was collected from the Rio dos Sinos at the COMUSA Water Treatment Plant (WTP) (Novo Hamburgo, Brazil) and had a turbidity of 26.2 NTU, electrical conductivity of 89 µS.cm -1 , and a pH of 6.5.

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  • IJMS | Free Full-Text | Effect of Short-Term Cold ...

    2021-7-9 · Filtration Reducer (ZOD-FLO TROL) is a kind of crosslinking starch. Crosslinking starch reduced its light transmittance, enhanced acid alkali-resistance, resistant to mechanical processing, the shear resistance and performance of gel.

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  • Hypernature Quintet Set - thecoucouclub.com

    2019-11-30 · Carobymethyl Starch(CMS) is anionic starch ether derived from starch.It is excellent thickener sizing agent emulsifier filtration reducer binder etc uniquely in broad applications including food textile daily chemicals drilling fluids pet industry construction cement . ... Effective control of rheological parameters is the basic function of .

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  • Recent practical researches in the development of

    2021-7-9 · ZOC-SMART HT cement slurry system is composed of fluid loss additive ZOC-G80L and ZOC-G90L, high temperature retarder ZOC-H42L and ZOC-H50L, silica fume and defoamer ZOC-X60L. ZOC-H42L and ZOC-H50L used in this system are a kind of

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