Molecular weight and organization of cellulose at different stages of cotton fiber development

Liyanage, Sumedha; Abidi, Noureddine

doi:10.1177/0040517517753642

Cited by 21 publications

(14 citation statements)

References 33 publications

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“…The vibrant color contrast generated along the fiber represents the birefringence that was caused by the crystalline arrays of cellulose microfibrils in the secondary cell wall [ 23 ]. Thus, fibers with a well-organized secondary cell wall appeared brighter and show greater birefringence [ 24 ]. Less mature fibers appeared in blue color, whereas more mature fibers appeared in yellow color that represents a birefringence generated from organized crystalline cellulose [ 25 ].…”

Section: Resultsmentioning

confidence: 99%

Surface and Thermal Characterization of Cotton Fibers of Phenotypes Differing in Fiber Length

Nam

Fang

et al. 2021

Polymers

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Cotton is one of the most important and widely grown crops in the world. Understanding the synthesis mechanism of cotton fiber elongation can provide valuable tools to the cotton industry for improving cotton fiber yield and quality at the molecular level. In this work, the surface and thermal characteristics of cotton fiber samples collected from a wild type (WT) and three mutant lines (Li1, Li2-short, Li2-long, Li2-mix, and liy) were comparatively investigated. Microimaging revealed a general similarity trend of WT ≥ Li2-long ≈ Li2-mix > Li1 > Li2 short ≈ liy with Ca detected on the surface of the last two. Attenuated total reflectance Fourier transform infrared (ATR FT-IR) spectroscopy and thermogravimetric measurements also showed that Li2-short and liy were more similar to each other, and Li2-long and Li2-mix closer to WT while Li1 was quite independent. FT-IR results further demonstrated that wax and amorphous cellulose were co-present in fiber structures during the fiber formation processes. The correlation analysis found that the FT-IR-based maturity parameter was well correlated (p ≤ 0.05) to the onset decomposition temperature and all three weight-loss parameters at onset, peak, and end decomposition stages, suggesting that the maturity degree is a better parameter than crystallinity index (CI) and other FT-IR parameters that reflect the thermal stability of the cotton fiber. In summary, this work demonstrated that genetic mutation altered the surface and thermal characteristics in the same way for Li2-short and liy, but with different mechanisms for the other three mutant cotton fiber samples.

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Section: Resultsmentioning

confidence: 99%

Surface and Thermal Characterization of Cotton Fibers of Phenotypes Differing in Fiber Length

Nam

Fang

et al. 2021

Polymers

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“…a Before transferring the solution to an oven at 105°C and after b 6 h, c 9 h, and d 12 h at 105°C peak intensities at 1640 cm -1 and 897 cm -1 , which were attributed to O-H bending of adsorbed water and b-linkage of cellulose, respectively. This is because dissolution followed by regeneration increases the amorphous region of cellulose, which in turn facilitates water adsorption and accessibility of b-linkage by the IR beam (Ciolacu et al 2011;Liyanage and Abidi 2019). Similar changes in the IR band at 897 cm -1 have been reported due to the regeneration of native cellulose (Ciolacu et al 2011;Dissanayake et al 2019).…”

Section: Ftir Characterizationmentioning

confidence: 75%

“…The peak intensity ratio of 1429/897 cm -1 was termed the IR lateral order index (Hurtubise and Krassig 1960). It serves as empirical crystallinity index of cellulose (Abidi et al 2014) and is positively correlated to the change in cellulose crystallinity (Liyanage and Abidi 2019). Due to dissolution and regeneration, the intensity of the vibration at 1429 cm -1 decreased, and the intensity of the vibration at 897 cm -1 increased.…”

Section: Ftir Characterizationmentioning

confidence: 99%

Conversion of low-quality cotton to bioplastics

2021

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The use of eco-friendly bioplastics has become a viable solution to reduce the accumulation of petrochemical products in the biosphere and to decrease microplastic contamination. In this study, we used low-quality cotton fibers that lack textile applications to prepare bioplastics. We dissolved cotton fibers in N,N-dimethylacetamide/lithium chloride (DMAc/LiCl) solvent system and converted cellulose solutions to strong, transparent, and flexible films through casting, gelation, regeneration, plasticization, and hot-pressing. Films were characterized using different analytical techniques to evaluate their physicochemical and mechanical properties. Compared to raw cotton cellulose, regenerated and hot-pressed cellulose films showed amorphous structures and excellent tensile characteristics. The physical and mechanical properties of cellulose films, such as deformation recovery, flexibility, homogeneity, elongation, and surface roughness, were significantly improved by means of plasticization and hot-pressing. Because glycerol plasticization increased the surface hydrophilicity of the films, plasma-induced surface grafting of oleic acid imparted hydrophobicity to cellulose films. This study presents a new avenue for using low-quality cotton fibers that are usually sold at a discounted price to produce value-added bioproducts for different applications. Graphic abstract

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“…Therefore, frequently, conditions are optimized for effective dissolution of cellulose obtained from various sources. For example, cotton cellulose that possesses a high DP of 8000–15,000 and CrI of ~80% is recalcitrant to dissolution under mild conditions, although these characteristics are cultivar-dependent [ 26 , 27 ]. The dissolution process is affected by several factors such as cellulose drying conditions (oven drying vs. freeze drying), various pretreatments, cellulose concentration, dissolution temperature, pH, and moisture content [ 12 , 16 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

“…Upon dissolution, viscous cellulose solutions can be converted into different material architectures using dry- or wet- jet spinning [ 29 , 30 , 31 ], electrospinning [ 32 , 33 , 34 ], or casting, followed by gelation, regeneration in protic solvents, such as water and alcohols, and drying ( via air-drying, hot pressing, supercritical CO 2 drying, etc.) [ 2 , 17 , 24 , 25 , 26 , 27 , 28 ]. Each of these techniques results in cellulose recovery in a form of amorphous bioproducts (e.g., hydrogels, films/membranes, aerogels, and beads [ 35 , 36 , 37 , 38 , 39 ]).…”

Section: Introductionmentioning

confidence: 99%

Production and Surface Modification of Cellulose Bioproducts

Liyanage¹,

Acharya²,

Parajuli³

et al. 2021

Polymers

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Petroleum-based synthetic plastics play an important role in our life. As the detrimental health and environmental effects of synthetic plastics continue to increase, the renewable, degradable and recyclable properties of cellulose make subsequent products the “preferred environmentally friendly” alternatives, with a small carbon footprint. Despite the fact that the bioplastic industry is growing rapidly with many innovative discoveries, cellulose-based bioproducts in their natural state face challenges in replacing synthetic plastics. These challenges include scalability issues, high cost of production, and most importantly, limited functionality of cellulosic materials. However, in order for cellulosic materials to be able to compete with synthetic plastics, they must possess properties adequate for the end use and meet performance expectations. In this regard, surface modification of pre-made cellulosic materials preserves the chemical profile of cellulose, its mechanical properties, and biodegradability, while diversifying its possible applications. The review covers numerous techniques for surface functionalization of materials prepared from cellulose such as plasma treatment, surface grafting (including RDRP methods), and chemical vapor and atomic layer deposition techniques. The review also highlights purposeful development of new cellulosic architectures and their utilization, with a specific focus on cellulosic hydrogels, aerogels, beads, membranes, and nanomaterials. The judicious choice of material architecture combined with a specific surface functionalization method will allow us to take full advantage of the polymer’s biocompatibility and biodegradability and improve existing and target novel applications of cellulose, such as proteins and antibodies immobilization, enantiomers separation, and composites preparation.

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Molecular weight and organization of cellulose at different stages of cotton fiber development

Cited by 21 publications

References 33 publications

Surface and Thermal Characterization of Cotton Fibers of Phenotypes Differing in Fiber Length

Surface and Thermal Characterization of Cotton Fibers of Phenotypes Differing in Fiber Length

Conversion of low-quality cotton to bioplastics

Production and Surface Modification of Cellulose Bioproducts

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