Fiber-formation from Liquid Crystalline Solution of Cellulose and Cellulose Derivatives

Liquid crystalline cellulose-based nematogels

Physical properties of composite materials can be pre-engineered by controlling their structure and composition at the mesoscale. However, approaches to achieving this are limited and rarely scalable. We introduce a new breed of self-assembled nematogels formed by an orientationally ordered network of thin cellulose nanofibers infiltrated with a thermotropic nematic fluid. The interplay between...

Preparation and liquid crystalline properties of spherical cellulose nanocrystals.

A novel kind of spherical cellulose nanocrystal (SCNC) suspension was prepared by hydrolysis of microcrystalline cellulose with a mixture of sulfuric acid and hydrochloric acid under ultrasonic treatment. The mechanism of SCNC formation and the liquid crystalline properties of their suspensions were investigated. A suspension of spherical particles was usually inclined to form crystallization c...

Application of Cellulose and Cellulose Derivatives in Pharmaceutical Industries

Size Exclusion Chromatography of Cellulose and Cellulose Derivatives

Approximately 2 X 10 ton biomass is produced on land and in water annually (l). Cellulose is the principal structural material in the cell wall of all plants (2). In addition, cellulose can be found in algae, bacteria, and animals (tunicates). Assuming that the average source contains 50% cellulose (Table 1) (35), then approximately 1 X 10 ton cellulose is formed each year. This makes cellulose...

Production and Characterisation of Cellulose and Nano- Crystalline Cellulose from Kenaf Core Wood

Natural fibers such as kenaf have been studied extensively as a reinforcing phase and received major attention recently due to their renewability, biodegradability, and high strength comparable to other synthetic fibers. In this study, nano-crystalline cellulose (NCC) was produced from kenaf core wood using the acid hydrolysis method. Kenaf core was alkali treated with a 4 wt% of sodium hydroxi...