Transparent, Flexible, and Strong 2,3-Dialdehyde Cellulose Films with High Oxygen Barrier Properties

Plappert, Sven F.; Quraishi, Sakeena; Pircher, Nicole; Mikkonen, Kirsi S.; Veigel, Stefan; Klinger, Karl Michael; Potthast, Antje; Rosenau, Thomas; Liebner, Falk

doi:10.1021/acs.biomac.8b00536

Cited by 132 publications

(114 citation statements)

References 60 publications

Supporting

Mentioning

106

Contrasting

Unclassified

Order By: Relevance

“…Periodate oxidation of cellulose is usually conducted at low solid content (between 1 % and 2 %) and temperatures of up to 48 °C. Conventional reaction times range from 19 h to several days to obtain dialdehyde cellulose with high aldehyde content . The low oxidation rate and the resulting long reaction time is a major drawback.…”

Section: Resultsmentioning

confidence: 99%

“…Conventional reaction times range from 19 htos everal days to obtain dialdehyde cellulose with high aldehyde content. [1,21] The low oxidation rate and the resulting long reaction time is am ajor drawback. In the conventionalp rocesses, the cellulose slurry is constantly stirred and heated, requiring a high amount of energy and much water owing to the diluted reactionconditions.…”

Section: Resultsmentioning

confidence: 99%

“…[11,12] Severalapplications for crosslinked DAC have been reported, ranging from protein or dye absorbers to nanoparticle carriers. [13,14] Moreover, grafteds urfaces, [15][16][17] beads, and gels [18][19][20][21] have been prepared from DAC. DAC also raises interesta saprecursor to yield more complex materials, such as hollow spheres [22] and hairy cellulose nanocrystals.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Resource‐Saving Production of Dialdehyde Cellulose: Optimization of the Process at High Pulp Consistency

et al. 2019

Self Cite

View full text Add to dashboard Cite

Oxidation of cellulose with periodate under aqueous conditions yields dialdehyde cellulose, a promising functional cellulose derivative. The main obstacles for this oxidation have been its slow kinetics and the dilute reaction conditions, requiring considerable amounts of water and energy. In this study, these drawbacks are overcome by conducting the oxidation at high cellulosic pulp consistency with a cellulose/water weight ratio of 1:4. The oxidizer, cellulose, and water are efficiently mixed in a ball mill. Oxidation occurs mostly in the subsequent step, during the resting time (no further milling/mixing is required). The reaction and resource efficiency of the process are optimized by experimental design and a maximum aldehyde content of 8 mmol g−1 is obtained with a periodate/cellulose molar ratio of 1.25, a milling time of 2 min, and a resting time of 8 h. The developed method allows fine tuning of the oxidation level and is a key step towards the sustainable periodate oxidation of cellulose also on larger scale.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Resource‐Saving Production of Dialdehyde Cellulose: Optimization of the Process at High Pulp Consistency

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…The hydroxyl groups present on the surface of cellulose are often subjected to different chemical treatments such carboxymethylation, methylation, hydroxyethylation, 2,2,6,6-Tetramethylpiperidine 1-oxyl (TEMPO) oxidation and peroxidation [5]. When reacted with periodate ions (IO 4 − ) at given reaction conditions, the ions cleave the C 2 -C 3 bonds of the anhydroglucose units (AGU) thereby converting hydroxyl groups present at these two positions into aldehyde groups [4,6]. As a result, the amorphous regions of cellulose chains can be penetrated thereby creating dialdehyde chains and in-turn the remaining ends of the crystalline regions are usually cleaved.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of dialdehyde cellulose nanofibers from O. sativa husks

et al. 2019

View full text Add to dashboard Cite

Periodate oxidation of cellulose breaks the C 2-C 3 bond of the glucose repeating units forming two vicinal aldehyde groups that are amenable to further reactions. In this article, effects of reaction conditions during the oxidation such as reaction time, oxidant concentration, and temperature on the aldehyde content were investigated and an optimized reaction condition identified. The synthesis of 2,3-dialdehyde cellulose (DAC) was confirmed by scanning electron microscopy, transmission electron microscopy (TEM), Fourier-transform infra-red spectroscopy (FT-IR), differential scanning calorimetry, thermal gravimetric analysis and wide-angle X-ray diffractometer (WXRD). Formation of dialdehyde cellulose (DAC) was confirmed by the appearance of carbonyl peak in FT-IR spectra while a decrease in crystallinity of the fibers as a result of oxidation was confirmed by WXRD. Morphological changes during oxidation were observed using SEM while the size of the fibers was confirmed by TEM, which showed the average length of the fibers decreased after oxidation as compared to native cellulose. Thermal degradation studies revealed that oxidation of cellulose decreased the thermal stability of the polymer as compared to native cellulose and was dependent on the aldehyde content. In conclusion, oxidation of native cellulose to dialdehyde cellulose had a profound effect on the thermal stability, degree of crystallinity, size and morphology of the polymer.

show abstract

“…Since the turn of the millennium, a multitude of advanced cellulosic materials has been developed. Their intriguing properties including transparence, low oxygen transmission, high mechanical strength, large specific surface, or tailor-made surface chemical and physical properties [1][2][3] literally invite use in both established and novel applications. Diagnostic or theranostic devices in human medicine typically rely on sensitive biosensors and event-triggered controlled release of active compounds.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Bacterial Cellulose-Carbon Dot Hybrid Nanopaper for Potential Sensing Applications

et al. 2018

Self Cite

View full text Add to dashboard Cite

Green and facile approaches aiming at the manufacture of biocompatible paper-based optical sensors reporting the presence of photoluminescence (PL) modulating compounds is an emerging field of research. This study investigates the preparation of bacterial cellulose nanopaper containing covalently immobilized carbon dots for potential biosensing applications. Preliminary work of this feasibility study included TEMPO-mediated ((2,2,6,6-tetramethylpiperidin-1-yl)oxyl-mediated) oxidation and nanofibrillation of bacterial cellulose (TOBC) on the one hand as well as synthesis and comparative analysis of different types of carbon dots (CDs) on the other hand. The two source materials of the targeted functional nanopaper were finally linked to each other by two different N-(3-dimethylaminopropyl)-N -ethylcarbodiimide hydrochloride/N-hydroxysuccinimide (EDC/NHS) coupling approaches to clarify whether grafting of CDs prior to or after TOBC paper formation would be the method of choice. Synthesis of the carbon nanodots was accomplished by microwave-assisted co-hydrothermolysis of appropriate precursor compounds. After isolation and purification by dialysis particles in the single-digit nanometer-range were obtained and characterized with regard to their photoluminescence properties in terms of emission wavelength, pH stability, and quantum yield. All types of synthesized CDs reached their PL maxima (450-480 nm; light blue) in a narrow excitation wavelength range of 340-360 nm. Variation of molar (C/N) ratio of the CD precursors and substitution of the nitrogen donor EDEA by urea increased PL and quantum yield (QY), respectively. The highest relative QY of nearly 32% was obtained for CDs synthesized from citric acid and urea. PL of all CDs was virtually insensitive to pH changes in the range of 4-10. Tensile testing of hybrid nanopaper prepared after EDC/NHS-mediated grafting of GEA-type CDs onto TOBC (0.52 mmol·g −1 COOH) in dispersion state revealed that both stiffness and strength are not compromised by incorporation of carbon dots, while plastic deformation and elongation at break increased slightly compared to nanopaper formed prior to decoration with CDs. Water contact angle of the nanopaper is unaffected by introduction of carbon dots which is supposedly due to the presence of surface amino-and amide groups compensating for the loss of carboxyl groups by grafting.

show abstract

Transparent, Flexible, and Strong 2,3-Dialdehyde Cellulose Films with High Oxygen Barrier Properties

Cited by 132 publications

References 60 publications

Resource‐Saving Production of Dialdehyde Cellulose: Optimization of the Process at High Pulp Consistency

Resource‐Saving Production of Dialdehyde Cellulose: Optimization of the Process at High Pulp Consistency

Synthesis and characterization of dialdehyde cellulose nanofibers from O. sativa husks

Preparation and Characterization of Bacterial Cellulose-Carbon Dot Hybrid Nanopaper for Potential Sensing Applications

Contact Info

Product

Resources

About