Structural Analysis of Oxidized Sucrose and Its Application as a Crease-Resistant Crosslinking Agent

Feng, Mao; Hu, Xiaodong; Yin, Yingting; Liang, Yajing; Niu, Jiarong; Yao, Jinbo

doi:10.3390/polym14142842

Cited by 10 publications

(8 citation statements)

References 34 publications

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“…For this reason, the crosslinking reaction was performed at a low temperature, in this case at 40°C, which means a reduced reaction rate. It was reported that OS has low activation energy for the crosslinking reaction, and the number of aldehyde groups that can participate in the crosslinking process is higher than that found in other crosslinking compounds 29 . This could also support the selection of mild temperatures for SPI‐OS containing PEO.…”

Section: Resultsmentioning

confidence: 92%

“…It was reported that OS has low activation energy for the crosslinking reaction, and the number of aldehyde groups that can participate in the crosslinking process is higher than that found in other crosslinking compounds. 29 This could also support the selection of mild temperatures for SPI-OS containing PEO. Samples treated during two different times (6 h and 24 h) were compared to the sample without thermal treatment.…”

Section: Electrospun Crosslinked Spi Mats (Spi-os)mentioning

confidence: 89%

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Effect of thermal treatments and UV radiation on green soy protein isolated crosslinked electrospun mats

Cunha

Ponce

Abraham

2023

J of Applied Polymer Sci

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Plant‐derived proteins continue to draw great interest due to their high availability, biodegradability, and biological properties. Among them, soy protein isolate (SPI) has been explored for the development of different sustainable and biodegradable materials in many bionanotechnological fields. In addition, the electrospinning technique has gained interest as a versatile platform for designing synthetic/biopolymer‐based nanofibrous mats for a huge variety of bionanotechnological fields. However, the water stability of SPI mats is low, and the sterilization procedures and conditions are not well established. In this work, oxidized sucrose (OS) was used as a green and inexpensive crosslinker for electrospun SPI mats. The sugar oxidation process was optimized by varying hydrogen peroxide concentration and reaction temperature. SPI‐OS solutions were electrospun using acetic acid as a benign solvent and the resulting mats were thermally treated at mild temperatures and different times. The crosslinked structures were fully characterized in terms of fiber morphology, and physicochemical and thermal properties. Interestingly, uniform bead‐free nanofibrous SPI‐OS membranes that retained their fibrous morphology after 7 days of immersion in phosphate‐buffered saline were successfully obtained. In addition, bilayered SPI‐OS/polycaprolactone mats were also produced by green electrospinning and sterilized by UV radiation for different exposure times. Finally, the effect of sterilization on the relevant properties was presented and discussed. UV radiation demonstrated to be an effective method for sterilizing crosslinked SPI‐based nanofibrous structures.

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Section: Resultsmentioning

confidence: 92%

Section: Electrospun Crosslinked Spi Mats (Spi-os)mentioning

confidence: 89%

Effect of thermal treatments and UV radiation on green soy protein isolated crosslinked electrospun mats

Cunha

Ponce

Abraham

2023

J of Applied Polymer Sci

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“…We performed solubility tests over 2 days using four different solvents: water, 1 M NaOH, 1 M citric acid, and the organic solvent THF. These tests were performed on polymer resins synthesized from oxidized sucrose 49 . The results of this experiment were shown in Figure S3.…”

Section: Resultsmentioning

confidence: 99%

“…These tests were performed on polymer resins synthesized from oxidized sucrose. 49 The results of this experiment were shown in Figure S3. Solubility tests showed that the polymer resin was insoluble in water and 1 M NaOH solution.…”

Section: Characterization Of Recycled Polymer Resinmentioning

confidence: 99%

Chemically decomposable imine‐based thermoset using oxidized sugar

Jeong,

Goh

2023

J of Applied Polymer Sci

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Increasing environmental concerns have driven the pursuit of sustainable alternatives to petrochemical‐based plastics in polymer chemistry. In this study, we demonstrated a method by which sugar, the most chemically produced biomass, can be used as a thermosetting resin. The sucrose was successfully oxidized, synthesized, and then incorporated into a resin. Sodium periodate (NaIO4) was used to convert sucrose into chemical raw materials. The resulting polymer, prepared via the imine reaction, exhibited a glass transition temperature Tg of 96°C, as determined by differential scanning calorimetry. Additionally, the thermosetting resin exhibited a tensile strength of 7 MPa, a modulus of 515 MPa, and a Tg of 100°C. We obtained reaction rate constants of 0.7 × 10−3 h−1 and 3.2 × 10−1 h−1 using THF and citric acid solutions, respectively. Furthermore, we reused the resin from the decomposed organic matter and confirmed that the resynthesized overall, our findings suggest the potential for green recycling by converting commonly used sugars into nature‐derived raw materials, leading to the development of eco‐friendly polymer synthesis.

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“…The FTIR spectrum of CTSG 3 after reduction demonstrated the absorption band of secondary amine at 1594 cm −1 [28], suggesting the reduction of the imine bond to secondary amine. The absorption band of the aldehyde group (C=O stretching) was not observed at 1710 cm −1 [23,29] in the spectra of CTSG before and after reduction. The FTIR spectra did not clearly confirm the presence of aldehydes in CTSG and the reduction of aldehydes.…”

Section: Structural Characterizations Of Ctsgsmentioning

confidence: 91%

Chitosan Hydrogels Crosslinked with Oxidized Sucrose for Antimicrobial Applications

Fujita,

Takeda,

Noda

et al. 2023

Gels

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Oxidized sucrose (OS) reacts with amino-group-containing polysaccharides, including chitosan, without catalyst, resulting in hydrogels entirely composed of carbohydrates. The presence of imine bonds with low structural stabilities and unreacted aldehydes in the structures of these hydrogels hinder their application as biomaterials. Therefore, herein, the chitosan hydrogels (CTSGs) obtained after the crosslinking of chitosan with OS were reduced using sodium borohydride to convert imine bonds to secondary amines and aldehydes to alcohols. The structures of CTSGs were comprehensively characterized using Fourier transform infrared and 13C nuclear magnetic resonance spectroscopies, and the results implied that the degree of crosslinking (CR) depended on the OS feed amount used during CTSG preparation. The properties of CTSGs were significantly dependent on CR; with an increase in CR, the thermal stabilities and dynamic moduli of CTSGs increased, whereas their swelling properties decreased. CTSGs exhibited antimicrobial properties against the gram-negative bacterium Escherichia coli, and their performances were also dependent on CR. The results indicated the potentials of CTSGs completely based on carbohydrates as antimicrobial hydrogels for various medical and pharmaceutical applications. We believe that this study will contribute to the development of hydrogels for application in the food, medical, and pharmaceutical fields.

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Structural Analysis of Oxidized Sucrose and Its Application as a Crease-Resistant Crosslinking Agent

Cited by 10 publications

References 34 publications

Effect of thermal treatments and UV radiation on green soy protein isolated crosslinked electrospun mats

Effect of thermal treatments and UV radiation on green soy protein isolated crosslinked electrospun mats

Chemically decomposable imine‐based thermoset using oxidized sugar

Chitosan Hydrogels Crosslinked with Oxidized Sucrose for Antimicrobial Applications

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