Polyelectrolyte complex nanofiltration membranes: performance modulation via casting solution pH

Nanofiltration (NF) membranes were prepared from a solution processable polyelectrolyte complex (PEC) between sodium carboxymethyl cellulose (CMCNa) and poly (2-methacryloyloxy ethyl trimethylammonium chloride) (PDMC).

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Viscosity properties of homogeneous polyelectrolyte complex solutions from sodium carboxymethyl cellulose and poly(acrylamide-co-dimethyldiallylammonium chloride)

Polymer International ◽

10.1002/1097-0126(200006)49:6<528::aid-pi401>3.0.co;2-j ◽

2000 ◽

Vol 49 (6) ◽

pp. 528-532 ◽

Cited By ~ 6

Author(s):

Li-Ming Zhang ◽

Shao-Jie Huang

Keyword(s):

Carboxymethyl Cellulose ◽

Polyelectrolyte Complex ◽

Sodium Carboxymethyl Cellulose ◽

Complex Solutions ◽

Poly Acrylamide

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Pervaporation dehydration of isopropanol using homogeneous polyelectrolyte complex membranes of poly(diallyldimethylammonium chloride)/sodium carboxymethyl cellulose

Journal of Membrane Science ◽

10.1016/j.memsci.2008.12.031 ◽

2009 ◽

Vol 329 (1-2) ◽

pp. 175-182 ◽

Cited By ~ 48

Author(s):

Qiang Zhao ◽

Jinwen Qian ◽

Quanfu An ◽

Zhangliang Gui ◽

Huangtao Jin ◽

...

Keyword(s):

Carboxymethyl Cellulose ◽

Polyelectrolyte Complex ◽

Sodium Carboxymethyl Cellulose ◽

Diallyldimethylammonium Chloride

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Preparation and Properties of Sodium Carboxymethyl Cellulose/Sodium Alginate/Chitosan Composite Film

Coatings ◽

10.3390/coatings8080291 ◽

2018 ◽

Vol 8 (8) ◽

pp. 291 ◽

Cited By ~ 30

Author(s):

Wenting Lan ◽

Li He ◽

Yaowen Liu

Keyword(s):

Composite Film ◽

Sodium Alginate ◽

Carboxymethyl Cellulose ◽

Test Method ◽

Sodium Carboxymethyl Cellulose ◽

Orthogonal Experimental Design ◽

Cellulose Solution ◽

Casting Solution ◽

Carboxymethyl Cellulose Sodium ◽

Chitosan Composite

A sodium alginate/chitosan solution was prepared by dissolving sodium alginate, chitosan, and glycerol in an acetic acid solution. This solution was then combined with a sodium carboxymethyl cellulose solution and the mixture was cast onto a glass plate and dried at a constant temperature of 60 °C. Then, a carboxymethyl cellulose/sodium alginate/chitosan composite film was obtained by immersing the film in a solution of a cross-linking agent, CaCl2, and air-drying the resulting material. First, the most advantageous contents of the three precursors in the casting solution were determined by a completely random design test method. Thereafter, a comprehensive orthogonal experimental design was applied to select the optimal mass ratio of the three precursors. The composite film obtained with sodium alginate, sodium carboxymethyl cellulose, and chitosan contents of 1.5%, 0.5%, and 1.5%, respectively, in the casting solution displayed excellent tensile strength, water vapor transmission rate, and elongation after fracture. Moreover, the presence of chitosan successfully inhibited the growth and reproduction of microorganisms. The composite film exhibited antibacterial rates of 95.7% ± 5.4% and 93.4% ± 4.7% against Escherichia coli and Staphylococcus aureus, respectively. Therefore, the composite film is promising for antibacterial food packaging applications.

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