Crystalline Cellulose and Derivatives

Zugenmaier, P.

doi:10.1007/978-3-540-73934-0

Cited by 192 publications

(128 citation statements)

References 0 publications

Supporting

Mentioning

120

Contrasting

Unclassified

Order By: Relevance

“…Low crystallinity cellulose usually has a higher biodegradation rate [112]. Cellulose derivatives are less crystalline in comparison to dissolved pulp, micro/nanoscale cellulose and BC [42,117,118]. Therefore, the biodegradability of cellulose derivatives is much higher than that of other cellulose materials.…”

Section: Biodegradability Of Seaweed and Cellulosementioning

confidence: 99%

Biodegradable polymer films from seaweed polysaccharides: A review on cellulose as a reinforcement material

Khalil¹,

Tye²,

Saurabh³

et al. 2017

Express Polym. Lett.

187

View full text Add to dashboard Cite

Section: Biodegradability Of Seaweed and Cellulosementioning

confidence: 99%

Biodegradable polymer films from seaweed polysaccharides: A review on cellulose as a reinforcement material

Khalil¹,

Tye²,

Saurabh³

et al. 2017

Express Polym. Lett.

187

View full text Add to dashboard Cite

“…Bacterial nanocellulose (BNC) incorporates meaningful structural elements and properties of the well-known plant cellulose [20][21][22][23][24][25][26] with the special features of nanoscale materials. Fig.…”

Section: Bacterial Nanocellulose-basic Informationmentioning

confidence: 99%

Bacterial Nanocellulose as a Microbiological Derived Nanomaterial

Stanisławska

2016

Advances in Materials Science

View full text Add to dashboard Cite

Bacterial nanocellulose (BNC) is a nanofibrilar polymer produced by strains such as Gluconacetobacter xylinus, one of the best bacterial species which given the highest efficiency in cellulose production. Bacterial cellulose is a biomaterial having unique properties such as: chemical purity, good mechanical strength, high flexibility, high absorbency, possibility of forming any shape and size and many others. Such a large number of advantages contributes to the widespread use of the BNC in food technology, paper, electronic industry, but also the architecture in use. However, the greatest hopes are using the BNC in medicine. This text contains information about bacterial nanocellulose, its specific mechanical and biological properties and current applications. Keywords: nanomaterials, bacterial nanocelullose, mechanical properties, application in medicine NanomaterialsNanomaterials its specific properties owes its size. The most striking feature of nanomaterials is a large area boundaries chapter. Depending on the kind of material are the outer surfaces, as in the case of nanoparticles, nanotubes or nanofibers, in nanocrystalline materials are the internal surfaces of the section: the grain boundaries or interphase boundaries. This causes their strong chemical reactivity and a tendency to agglomerate, while diffusion occurs much faster than in the microcrystalline materials. This results include low thermal stability of these materials, much faster overlap of various kinds of phase transformation or facilitated movement of the grains with respect to each other at elevated temperature. At the same time reducing the grain size, according to the Hall-Petch relationship, it causes an increase of yield stress as well as tensile strength or hardness [1,2]. Nanomaterials can be divided by origin into 3 groups: -natural -anthropogenic (a side effect of human activity), -designed. Natural nanoparticles come mostly from thermal processes, eg. Forest fires, volcanic eruptions (eg. volcanic dust) or from the oxidation of minerals, erosion of rocks or evaporation (eg. sea salt formed during the evaporation of a drop of sea water). Anthropogenic nanomaterials are a side effect of human activity. Formed, for example. During the combustion of coal (carbon black) or during welding, or vulcanization of rubber. Nanoparticles may also arise during the mechanical working of materials by cutting, SCIENCE, Vol. 16, No. 4 (50), December 2016 sawing and grinding. Nanomaterials designed and produced in a targeted manner by man include fullerenes, nanotubes, liposomes, dendrimers or nanofibers.The range of applications of nanomaterials is still expanding. Particularly high hopes associated with their use in medicine, especially in transplantation. In the currently used implants observed problem is the lack of precise adherence to tissue surfaces, which could be solved by introducing free zones eg. carbon nanofibers or nanotubes [3]. These are particularly preferred material because of their lack of interaction with human tissu...

show abstract

“…1(a)) and forms robust crystal structures with inter-and intra-molecular hydrogen bonds, possessing high 30 chemical stability. 3 Hemicellulose is also a polysaccharide, but …”

mentioning

confidence: 99%

Conversion of lignocellulose into renewable chemicals by heterogeneous catalysis

Kobayashi

Ohta

Fukuoka

2012

Catal. Sci. Technol.

191

121

View full text Add to dashboard Cite

Conversion of lignocellulose into renewable chemicals and fuels has received great attention for building up the sustainable societies. However, the utilisation of lignocellulose in the chemical industry has almost been limited for paper manufacturing because of the complicated chemical structure and persistent property of lignocellulose. Heterogeneous catalysis has the potential to selectively convert lignocellulosic biomasses into various useful chemicals, and this methodology has rapidly progressed in the last several 10 years. In this perspective article, we outline our recent approaches on the heterogeneous catalysis for this challenging subject with related literatures. Lignocellulose as a renewable resourceConversion of biomass to renewable fuels and chemicals has attracted significant attention as a key technology for the 15 sustainable societies.1 Lignocellulose is the most abundant biomass resource, produced together with sugars and starch from carbon dioxide and water via the photosynthesis using sunlight and successive metabolism in plants. Lignocellulose is not digestible for human beings, which is an advantage over sugars 20 and starch since the use of edible carbohydrates for the synthesis of bioethanol fuel has competed with the food production, giving us a consensus that we should use non-food biomass as a feedstock to fuels and chemicals. Therefore, lignocellulose is one of the most attractive biomass resources in nature. 25Lignocellulose in woods consists of cellulose (40-50%), hemicellulose (20-40%) and lignin (20-30%).2 Cellulose is a water-insoluble polymer composed of glucose linked by -1,4-glycosidic bonds ( Fig. 1(a)) and forms robust crystal structures with inter-and intra-molecular hydrogen bonds, possessing high 30 chemical stability. 3 Hemicellulose is also a polysaccharide, but

show abstract

Crystalline Cellulose and Derivatives

Cited by 192 publications

References 0 publications

Biodegradable polymer films from seaweed polysaccharides: A review on cellulose as a reinforcement material

Biodegradable polymer films from seaweed polysaccharides: A review on cellulose as a reinforcement material

Bacterial Nanocellulose as a Microbiological Derived Nanomaterial

Conversion of lignocellulose into renewable chemicals by heterogeneous catalysis

Contact Info

Product

Resources

About