Membrane materials market to grow steadily

Rogers, Ronald S.

doi:10.1021/cen-v076n034.p038

Cited by 7 publications

(3 citation statements)

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“…Nowadays, nearly 50 years since the creation of synthetic polymer membranes, novel developments and refinements in membrane technology continue to be active themes of research; membrane technologies are now well accepted and cost-effective, conferring unique advantages over previous separation processes (Rogers et al, 1998). Separation membranes are broadly applied in food, chemical and pharmaceutical industries.…”

Section: Introductionmentioning

confidence: 99%

Advanced PFA Thin Porous Membranes

Minamisawa¹,

Zimmerman²,

Muntele³

et al. 2010

Polymer Thin Films

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Section: Introductionmentioning

confidence: 99%

Advanced PFA Thin Porous Membranes

Minamisawa¹,

Zimmerman²,

Muntele³

et al. 2010

Polymer Thin Films

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“…In recent years, the need to purify water and other organic compounds has grown explosively where needs have arisen primarily from the environmental and industrial sectors 1. Purification of water is required in an environmental setting where pollutants must be separated prior to discharge.…”

Section: Introductionmentioning

confidence: 99%

Characterization of 2‐(2‐methoxyethoxy)ethanol‐substituted phosphazene polymers using pervaporation, solubility parameters, and sorption studies

Orme

Klaehn

Harrup

et al. 2005

J of Applied Polymer Sci

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Two linear phosphazene polymers were synthesized with differing amounts of hydrophilic 2-(2-methoxyethoxy)ethanol (MEE) and hydrophobic 4-methoxyphenol (MEOP) substituted on the backbone. These high polymers were cast into membranes and their permeability to water, methanol, ethanol, and 2-propanol was evaluated as a function of temperature. An additional polymer with a low content of MEE was studied for water permeation and was characterized by trace flux. At higher levels of MEE on the backbone, fluxes of all solvents increased. Solubility also was found to increase with increasing MEE content for all solvents except water. Unexpectedly, water was found to be less soluble in the higher MEE polymer, although higher membrane fluxes were observed. Diffusion coefficients showed the following trend: methanol Ͼ Ͼ 2-propanol Ͼ ethanol Ͼ Ͼ water. Finally, the affinity of solvents and polymers was discussed in terms of Hansen solubility parameters.

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“…According to a recent report, membranes represent a major growth opportunity for the chemical industry with a projected annual growth of 8.2%, with the largest growth expected in the area of water treatment 1. In our research effort, we have sought to apply the versatility inherent in polyphosphazene chemistry to membrane separations involving water transport through polymer materials.…”

Section: Introductionmentioning

confidence: 99%

Formation of pervaporation membranes from polyphosphazenes having hydrophilic and hydrophobic pendant groups: Synthesis and characterization

Stewart¹,

Harrup²,

Luther³

et al. 2001

J. Appl. Polym. Sci.

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A series of new polyphosphazene polymers were synthesized using three different pendant groups with the goal of probing structure–function relationships between pendant group substitution and polymer swelling/water flux through thin dense films. Formation of polymers with relative degrees of hydrophilicity was probed by varying the stoichiometry of the pendant groups attached to the phosphazene backbone: p‐methoxyphenol, 2‐(2‐methoxyethoxy)ethanol, and o‐allylphenol. The polymers in this study were characterized using NMR, thermal methods, and dilute solution light‐scattering techniques. These techniques revealed that the polymers were amorphous high polymers (Mw = 105–107) with varying ratios of pendant groups as determined by integration of the 1H‐ and 31P‐NMR spectra. Thin dense film membranes were solution‐cast with azo‐bis(cyclohexane)carbonitrile included in the matrix and crosslinked using thermal initiation. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 80: 422–431, 2001

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Membrane materials market to grow steadily

Cited by 7 publications

References 0 publications

Advanced PFA Thin Porous Membranes

Advanced PFA Thin Porous Membranes

Characterization of 2‐(2‐methoxyethoxy)ethanol‐substituted phosphazene polymers using pervaporation, solubility parameters, and sorption studies

Formation of pervaporation membranes from polyphosphazenes having hydrophilic and hydrophobic pendant groups: Synthesis and characterization

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