Preparation of hydrazinodeoxycellulose and carboxyalkyl hydrazinodeoxycelluloses and their adsorption behavior toward heavy metal ions

Nakamura, Shigeo; Amano, Masato

doi:10.1002/(sici)1099-0518(19971130)35:16<3359::aid-pola3>3.0.co;2-n

Cited by 9 publications

(17 citation statements)

References 3 publications

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“…In particular, some chlorinating agents have been widely applied to these syntheses, by employing thionyl chloride [1,2] and lithium chloride/chlorosuccinimide [3], following either a homogeneous or a heterogeneous route, depending on the agent and the final desired product. The success of the preparative methodology is closely related to the solvents used in these reactions, such as N,N 0 -dimethylacetamide (DMA), N,N 0 -dimethylformamide (DMF), pyridine, and xylene [1,[3][4][5]. In addition, an alternative process includes a brominating reaction on cellulose by reacting the biopolymer with lithium bromide [6].…”

Section: Introductionmentioning

confidence: 99%

“…Many investigations involving these transformation reactions on different molecules, with different synthetic conditions and using a diversity of solvents, have been explored as well [1,[3][4][5]. The molecules more highlighted for modifying the cellulose surfaces are ethylene-1,2-diamine [1] thiourea [8], aminobenzoic acid [5], cystein [8], methyliminodiacetic acid [9], anhydride [10], phosphates [11], and oxides [12] as well as hydroxyquinoline inserted into cellulose previously modified with ethylene-1,2-diamine [13].…”

Section: Introductionmentioning

confidence: 99%

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Cation removal using cellulose chemically modified by a Schiff base procedure applying green principles

Filho

Melo

Fonseca

et al. 2009

Journal of Colloid and Interface Science

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Pentane-2,4-dione (acetylacetone) molecules were covalently incorporated under several different conditions to ethylene-1,2-diamine (en)-modified cellulose, using polar solvents or without solvents. The quantitative amount of en incorporated was given from 0.37+/-0.01 to 3.03+/-0.01 mmol of nitrogen per gram of cellulose, depending on the synthetic routes and after Schiff base formation this percentage was reduced by 1.38-6.12%. The synthetic routes indicated that lower solvent volumes produced higher amounts of en incorporation. However, the highest degree of pendant groups on the polymeric cellulose structure was obtained from a solvent-free reaction route. This procedure was applied for synthesizing all Schiff bases, causing a decrease in the amount of nitrogen. The available basic centers on the best covalently bonded biopolymer were investigated for adsorption of divalent copper, cobalt, nickel, and zinc from aqueous solution, with a capacity order of Cu2+ > Co2+ > Ni2+ > Zn2+.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Cation removal using cellulose chemically modified by a Schiff base procedure applying green principles

Filho

Melo

Fonseca

et al. 2009

Journal of Colloid and Interface Science

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“…In another approach, chlorodeoxycellulose (CDC) was employed as a precursor for the synthesis of hydrazinodeoxycellulose (HDC) . The CDC was reacted with hydrazine hydrate in an aqueous solution .…”

Section: Synthesis Of N‐functionalized Basic and Cationic Cellulose Dmentioning

confidence: 99%

“…The CDC was reacted with hydrazine hydrate in an aqueous solution . However, HDCs with higher DS can be obtained by using neat hydrazine hydrate as a reaction medium …”

Section: Synthesis Of N‐functionalized Basic and Cationic Cellulose Dmentioning

confidence: 99%

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Designing syntheses of cellulose and starch derivatives with basic or cationic N‐functions: part I—cellulose derivatives

Satha

Aryanasab

Banazadeh

et al. 2015

Polymers for Advanced Techs

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The use of cellulose and starch derivatives that bear amino or quaternary ammonium moieties is steadily increasing, and the applications in industry are continuing to grow. These promising products are routinely used in cosmetic and paper‐making industries. This article provides an overview of strategies available to chemists for designing the syntheses of such compounds. The review provides a brief historical perspective on synthesis and describes recent developments that have enabled chemists to enhance their synthesis productivity. However, the graft polymerization techniques are far from the scope of this paper and will be noted in a few words only. In addition to the structural and synthetic aspects, applications of these derivatives are discussed in brief. We have divided this article in two parts mainly because of the vastness of the subject and limited space available. The first part of which reviews the advances in the synthesis of basic and cationic cellulose derivatives having amino or quaternary ammonium moieties and the second part of which considers starch ones. Copyright © 2015 John Wiley & Sons, Ltd.

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Use of novel hydrogels based on modified cellulosics and methacrylamide for separation of metal ions from water systems

Chauhan

Mahajan

2002

J of Applied Polymer Sci

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ABSTRACT:Interpenetrating networks (IPNs) based on extracted cellulose and its derivatives such as hydroxypropyl cellulose (HPC), cyanoethylcellulose, hydroxyethylcellulose, hydrazinodeoxycellulose, cellulosephosphate with methacrylamide (MAAm), and N,N-methylene bisacrylamide were synthesized at reaction conditions evaluated for optimum network yield as a function of irradiation dose, concentrations of monomer and crosslinker, and amount of water. These networks were used in sorption of Fe 2ϩ , Cu 2ϩ , and Cr 6ϩ ions. The networks were further functionlized by means of partial hydrolysis with 0.5N NaOH and metal ion sorption studies were carried out. Appreciable amount of all the three ions was sorbed and partial functionalization of the hydrogels results in selectivity in ion sorption with enhanced affinity for Fe 2ϩ ions and total rejection of Cr 6ϩ ions. These results are of interest for the development of low-cost technologies based on smart hydrogels. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 86: 667-671, 2002

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Preparation of hydrazinodeoxycellulose and carboxyalkyl hydrazinodeoxycelluloses and their adsorption behavior toward heavy metal ions

Cited by 9 publications

References 3 publications

Cation removal using cellulose chemically modified by a Schiff base procedure applying green principles

Cation removal using cellulose chemically modified by a Schiff base procedure applying green principles

Designing syntheses of cellulose and starch derivatives with basic or cationic N‐functions: part I—cellulose derivatives

Use of novel hydrogels based on modified cellulosics and methacrylamide for separation of metal ions from water systems

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