New carboxymethyl cellulose tosylate with low biodeterioration

Orehek, Janez; Petek, Klemen; Dogša, Iztok; Stopar, David

doi:10.1016/j.carbpol.2014.06.016

Cited by 6 publications

(3 citation statements)

References 19 publications

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“…28 The low surface free energy and high-water contact angle for CNF films modified using tosyl chloride were due to the presence of tosylate groups (Figure 2a found that modification of carboxymethyl cellulose with tosyl chloride increased the hydrophobicity of the fibers. 32 Similar differences in surface free energy as well as water contact angle between tosyl chloride and carbodiimide-mediated modification was also found in our previous study. 19 Surface electron microscopy (SEM) images of film surface and water contact angle for CNF and modified films are available in the Supporting Information (Figures S5 and S6).…”

Section: ■ Results and Discussionsupporting

confidence: 88%

“…The low surface free energy and high-water contact angle for CNF films modified using tosyl chloride were due to the presence of tosylate groups (Figure a,b). Orehek et al (2014) found that modification of carboxymethyl cellulose with tosyl chloride increased the hydrophobicity of the fibers . Similar differences in surface free energy as well as water contact angle between tosyl chloride and carbodiimide-mediated modification was also found in our previous study .…”

Section: Resultssupporting

confidence: 87%

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Biodegradable Cellulose Nanofibril Films with Active Functionality for Food Packaging Applications

Balasubramaniam

Patel

Tajvidi

et al. 2023

ACS Food Sci. Technol.

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Cellulose nanofibrils (CNFs) can form hydrogen bonds with each other, creating strong, flexible films with good oxygen barrier properties. However, they are vulnerable to the water-induced loss of film integrity. Targeted modification with phenolic acids can improve their hydrophobicity, provide active functionality for food packaging applications, and reduce their susceptibility to moisture. In this study, precasted CNF films were esterified with cinnamic acid and its derivatives using two different esterification methods. The modified films were investigated for the evidence of esterification, changes in hydrophobicity, mechanical properties, and capacity to increase the shelf life of model foods. Modification techniques utilized resulted in esterification of CNF films; with films acquiring antioxidant activity (80 ± 9% DPPH radical scavenging activity) and significantly increased hydrophobicity (101 ± 4° water contact angle) as compared to control CNF films. Overall, esterification of CNF films with cinnamic acid or its derivatives significantly reduced the films’ susceptibility to water while also providing important added functionality.

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Section: ■ Results and Discussionsupporting

confidence: 88%

Section: Resultssupporting

confidence: 87%

Biodegradable Cellulose Nanofibril Films with Active Functionality for Food Packaging Applications

Balasubramaniam

Patel

Tajvidi

et al. 2023

ACS Food Sci. Technol.

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“…5 with -0.9 pCi/L to -0.3 pCi/L, where coating B shows the best viscosity and adhesive characteristics than to other comparative coatings. Nevertheless, the paint somehow will lose their viscosity as the thickening agents was used in degree of polymerization [11,12].…”

Section: Resultsmentioning

confidence: 99%

Synergism Effects of Coating and Concrete Plaster to Reduce 222Rn Emanations from Red Brick

Zahariman¹,

Abdullah²,

Bakar³

et al. 2018

IJCRSET

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The study revealed the synergism effects of concrete plaster and coatings in reducing 222 Rn from a marketable red brick. The methodology applied is the common practice in construction industry for wall finishing. 222 Rn concetrations level from red brick coated with three different type of coatings were measured within 5 consecutive days within 30 min times interval. The nett 222 Rn concentration of raw red brick (uncoated) was-0.22 pCi/L. From the results, 222 Rn concentration has drastically decreased after coated with coating B and C. 222 Rn cocentration seems to decreased with the range of-0.9 pCi/L to-0.3 pCi/L after coated with coating B and-0.8 pCi/L to-0.7 pCi/L after coated with coating C. Coating B shown the best performance in reducing 222 Rn emanations with lowest 222 Rn range concentration, high adhesion strength and good dynamic viscosity properties.

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