Synthesis of cationic starch with a high degree of substitution in an ionic liquid

Wang, Yingbin; Xie, Wenlei

doi:10.1016/j.carbpol.2010.01.042

Cited by 140 publications

(81 citation statements)

References 19 publications

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“…83, 3.39, 3.82, 3.30, 3.49, and 3.65 ppm are attributed to H-1, H-2, H-3, H-4, H-5, and H-6 of D-pyran glucose units; the peaks recorded between 5.0 and 5.5 ppm are ascribed to the hydrogen atoms of hydroxyl groups, and the peak at 3.6 ppm is attributed to the O-H group (Guan et al 2014). Compared to β-CD, the β-CD-CS exhibited an additional peak at nearby 3.19 ppm, which can be ascribed to the CH 3 -N + group substituted cationic group from cationic starch (Wang and Xie 2010). The existence of this signal resulting from the hydrogen atom of the substituent indicated that CS was linked with β-CD and the etherification reaction occurred.…”

Section: Scheme 1 Schematic Representation Of β-Cd Grafted Onto Polymentioning

confidence: 98%

β-Cyclodextrin Grafted Cellulose and Cationic Starch for Antibacterial Paper Products: A Comparative Study

Dong¹,

Li²,

Xiao³

et al. 2014

BioResources

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Two kinds of macromolecules applied in papermaking were modified with β-cyclodextrin (β-CD) and loaded with ciprofloxacin hydrochloride (CipHCl) in an attempt to compare their potential applications in antimicrobial paper. β-CD grafted cellulose (β-CD-Cel) and β-CD grafted cationic starch (β-CD-CS) were prepared by grafting β-CD onto cellulose fiber and cationic starch using citric acid (CA) and epichlorohydrin (ECH) as crosslinking agents, respectively. β-CD-Cel and β-CD-CS were both loaded with an antimicrobial agent (CipHCl) to form inclusion complexes, namely β-CD-Cel-CipHCl and β-CD-CS-CipHCl. Furthermore, the inclusion complexes were added to the pulp to prepare antibacterial paper. The antimicrobial activity and physical properties of the paper were investigated. The results showed that the paper with both inclusion complexes exhibited excellent antibacterial activity, and the antibacterial activity with β-CD-CS-CipHCl was higher than that with β-CD-CelCipHCl. Moreover, the addition of both β-CD-Cel-CipHCl and β-CD-CSCipHCl affected the tensile and tear strengths of the paper. The paper with β-CD-CS-CipHCl had better physical properties than that with β-CDCel-CipHCl because the CS acts as a reinforcing agent in papermaking. These prepared antibacterial paper sheets may be useful for preventing wound and nosocomial infections in the medical and packaging fields.

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Section: Scheme 1 Schematic Representation Of β-Cd Grafted Onto Polymentioning

confidence: 98%

β-Cyclodextrin Grafted Cellulose and Cationic Starch for Antibacterial Paper Products: A Comparative Study

Dong¹,

Li²,

Xiao³

et al. 2014

BioResources

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“…In previous studies, modified corn starch used quaternary ammonium group and dioxane-water-THF as the medium to produce cationic starch with DS 1.37 [3]. Reaction of corn starch with quaternary ammonium in the ionic liquid produced cationic starch with DS of 0.99 [1]. Homogenous reaction conditions using medium DMSO can increase the DS compared to heterogeneous reaction condition in ethanol/water medium [4].…”

Section: -2506mentioning

confidence: 99%

“…Although there are several ways of obtaining cationic starches with high DS, the use of harmful solvents, difficult in purification process and high cost of solvents limits the production of the cationic starches. Conventional methods which use a lot of organic solvents are not only reduce the DS but also increase pollution to the environment [1].…”

Section: -2506mentioning

confidence: 99%

“…The samples were put in special containers and diffraction patterns recorded in a reflection 5 -80 o (2θ) at room temperature, operating at 40 kV and 40 mA with Cu Kα radiation, k = 0.5406 nm [1,10]. (Figure 2 (a)).…”

Section: X-ray Diffractionmentioning

confidence: 99%

“…The usage of native starch is usually limited due to its physicochemical properties that are not water-soluble and tend to form a non-stable emulsion. Thus, starch modification via physical, chemical or biological is used to increase the functionality that able to expand into to industrial use and has better features in terms of functional group and solubility [1]. Chemically modified starch…”

Section: Introductionmentioning

confidence: 99%

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SYNTHESIS AND PHYSICOCHEMICAL CHARACTERIZATION OF CATIONIC POLYMERIC SURFACTANT FROM Dioscorea pyrifolia STARCH

Suhaimi

Ahmad²,

Lazim³

2016

MJAS

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Cationic starch-based polymeric surfactant, 2-hydroxy-3-(N,N,N-trimethylammonium)propyloxy starch (S-ETAC) from Dioscorea pyrifolia tubers, was synthesized by etherification using 2,3-epoxytrimethylammonium chloride (ETAC) in the mass ratio of ETAC/starch (St) of 0.15:1, 0.25:1, 0.5:1, 1:1, 2:1 g/g and sodium hydroxide as a catalyst in aqueous medium. The degree of substitution (DS) and reaction efficiency (RE) were calculated using the percentage of nitrogen derived from the elemental analysis. The study found that the more the ETAC used, the higher the DS (0:11 to 0.76), but the RE decreased (69% to 35%). This S-ETAC was characterized by using the solubility and swelling power tests as well as attenuated total reflectanceFourier transform infra-red (ATR -FTIR) spectroscopy, differential scanning calorimetry (DSC) and X-ray diffraction (XRD) to prove the reaction occurs at the starch structure.Keywords: cationic starch, etherification, Dioscorea pyrifolia Abstrak Surfaktan polimer berasaskan kanji kationik, kanji 2-hidroksi-3-(N,N,N-trimetilammonium)propiloksi (S-ETAC) dari ubi Dioscorea pyrifolia, telah disintesis melalui tindak balas pengeteran menggunakan 2,3-epoksitrimetilammonium klorida (ETAC) dalam nisbah jisim ETAC/kanji (St) 0.15: 1, 0.25: 1, 0.5: 1, 1: 1, 2: 1 g/g dan natrium hidroksida sebagai pemangkin dalam medium akueus. Darjah penukargantian (DS) dan kecekapan tindak balas (RE) telah dikira menggunakan peratusan nitrogen yang diperolehi daripada penganalisis unsur. Kajian ini mendapati bahawa lebih banyak ETAC yang digunakan, semakin tinggi DS (0.11 kepada 0.76), tetapi RE menurun (69% kepada 35%). S-ETAC dicirikan dengan menggunakan ujian keterlarutan dan kuasa pembengkakkan serta spektroskopi transformasi Fourier inframerah -jumlah pantulan teratenuat (FTIR -ATR), kalorimetri pengimbas pembezaan (DSC) dan pembelauan sinar-X (XRD) untuk membuktikan bahawa tindak balas berlaku pada struktur kanji.

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The application of poly(dimethyldiallylammonium chloride) in poly(butylene adipate‐co‐terephthalate)/starch composites

Yan,

Zhou,

Liu

et al. 2024

J of Applied Polymer Sci

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Antimicrobial degradable materials are pivotal in enhancing food safety, mitigating plastic pollution, and advancing sustainable development. In this study, poly(diallyldimethylammonium chloride) (PDMDAAC) was initially anchored to the starch surface (PMS) and utilized as a filler. Subsequently, poly(butylene adipate‐co‐terephthalate) (PBAT)/PMS composites with antimicrobial properties were successfully prepared by melt blending. The results showed that the introduction of PMS filler can improve the mechanical and antimicrobial properties of PBAT. Compared with pure PBAT, the tensile strength and modulus of PBAT/10PMS composites were enhanced by 25% and 29%, respectively. In addition, the prepared PBAT/PMS composites exhibited excellent antimicrobial activity against Escherichia coli when the PMS filler content reached 10 wt% or even higher. Therefore, an antimicrobial biodegradable composite was successfully prepared using a facile blending method in this study.

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Synthesis of cationic starch with a high degree of substitution in an ionic liquid

Cited by 140 publications

References 19 publications

β-Cyclodextrin Grafted Cellulose and Cationic Starch for Antibacterial Paper Products: A Comparative Study

β-Cyclodextrin Grafted Cellulose and Cationic Starch for Antibacterial Paper Products: A Comparative Study

SYNTHESIS AND PHYSICOCHEMICAL CHARACTERIZATION OF CATIONIC POLYMERIC SURFACTANT FROM Dioscorea pyrifolia STARCH

The application of poly(dimethyldiallylammonium chloride) in poly(butylene adipate‐co‐terephthalate)/starch composites

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