Morphology and permeability of cellulose/chitin blend membranes

Liang, Songmiao; Zhang, Lina; Xu, Jie

doi:10.1016/j.memsci.2006.10.002

Cited by 67 publications

(33 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nmethylmorpholine-N-oxide, sodium hydroxide/urea and sodium hydroxide/thiourea systems are among the popular ones. These solvents have been used successfully to generate porous cellulose membranes [5,6,7,8,9,10]. Derivatization of cellulose is an alternative; cellulose is modified into a more processable polymer and is transformed back to cellulose after film deposition.…”

Section: Introductionmentioning

confidence: 99%

Crosslinked cellulose thin film composite nanofiltration membranes with zero salt rejection

Puspasari

Neelakanda

Peinemann

2015

Journal of Membrane Science

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Crosslinked cellulose thin film composite nanofiltration membranes with zero salt rejection

Puspasari

Neelakanda

Peinemann

2015

Journal of Membrane Science

View full text Add to dashboard Cite

“…The physical properties of the model drugs were obtained from the literature. [22] The permeability coefficients of these drugs were determined using diaphragm diffusion cells made of two glass compartments (source and receiving). The capacity of both cells is 50.0 mL and the area of the orifice is 2.21 cm 2 .…”

Section: Permeability Test Of the Hydrated Membranementioning

confidence: 99%

Fabrication and Properties of Cellulose Hydrated Membrane with Unique Structure

Liang

Zhang

et al. 2007

Macro Chemistry & Physics

View full text Add to dashboard Cite

By employing a pre‐gelation processing of cellulose solution, this work has presented a new method to prepare cellulose hydrated membranes in NaOH/thiourea aqueous solvent system. The morphology and structure of the hydrated membranes obtained at different pre‐gelation temperatures were studied by scanning electron microscopy (SEM), wide‐angle X‐ray diffractometry (WAXD), and attenuated total reflection Fourier transform infrared spectroscopy (ATR‐FTIR). The mechanical properties of the membranes were studied by tensile testing. Using a double‐cell method, permeation of three model drugs (ceftazidine, cefazolin sodium, thiourea) through the hydrate membranes was determined in phosphate buffer solution at body‐like temperature (37 °C). The results indicate that the membranes were packed densely by many hydrated nanospheres and exhibited good mechanical properties. At a relatively low pre‐gelation temperature, the strain and the stress at break of the membranes are even up to 192% and 1.97 MPa, which are much larger than that of the hydrated membranes prepared by the general solution casting method. For the first time, the formation process of the hydrated membrane from gel state in water was investigated by ATR‐FTIR spectrum, indicating a non‐solvent‐induced phase‐separation mechanism.magnified image

show abstract

“…This solvent offers an inexpensive and less toxic system as compared to other solvents developed previously (Jin et al 2007;Liang et al 2007). The dissolved cellulose can then be further applied for the preparation of regenerated cellulose products such as hydrogel (Chang et al 2010;Kaco et al 2014), films , membranes (Kaco et al 2015;Mohd Saidi et al 2016) and beads (Gericke et al 2013;Jin et al 2007;Liang et al 2007). The process of cellulose dissolution using different cellulose solvents provides a new method for the production of regenerated cellulose and can be used in various applications.…”

Section: Introductionmentioning

confidence: 99%