Dendrimer Membranes:  A CO<sub>2</sub>-Selective Molecular Gate

Kovvali, A. Sarma; Chen, and Hua; Sirkar, Kamalesh K.

doi:10.1021/ja0013071

Cited by 147 publications

(106 citation statements)

References 18 publications

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“…Some liquid membranes using porous membranes containing dendrimers in the pores were reported. [34][35][36] A dendrimer membrane was prepared by the immersion of porous a hydrophilized polyvinylidene fluoride flat membrane (porosity 0.7; pore size 0.1 mm; thickness 100 mm; tortuosity 2.58; Millipore) into pure G0 PAMAM dendrimer or glycerol solution of G0 PAMAM dendrimer. 34,35 The CO 2 /N 2 permeation performance through the liquid membranes was measured under various humidity.…”

Section: Dendrimers Supported By Membranesmentioning

confidence: 99%

“…[34][35][36] A dendrimer membrane was prepared by the immersion of porous a hydrophilized polyvinylidene fluoride flat membrane (porosity 0.7; pore size 0.1 mm; thickness 100 mm; tortuosity 2.58; Millipore) into pure G0 PAMAM dendrimer or glycerol solution of G0 PAMAM dendrimer. 34,35 The CO 2 /N 2 permeation performance through the liquid membranes was measured under various humidity. The separation factor CO 2 /N 2 was almost 19000 at a low CO 2 partial pres-sure (Áp CO 2 ¼ 0:36 cmHg) under the completely humidified condition, while it was around 700 at the higher Áp CO 2 (> 30 cmHg).…”

Section: Dendrimers Supported By Membranesmentioning

confidence: 99%

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New Macromolecular Architectures for Permselective Membranes—Gas Permselective Membranes from Dendrimers and Enantioselectively Permeable Membranes from One-handed Helical Polymers—

Aoki

Kaneko

2005

Polym J

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ABSTRACT:Chemistry of macromolecular architecture is one of the fastest growing branches of polymer chemistry. The present review describes macromolecular architectures for permselective membranes relating their structures and permselectivity, and is focused on dendrimers for gas permselective membranes and one-handed helical polymer membranes for enantioselectively permeable membranes (optical resolution). The first part of this review described the three kinds of permselective membranes prepared from pure polydendrons or dendronized polymers having self-membrane-forming ability by us, and from another polymer and dendrimers or hyperbranched polymers as a crosslinker, and from another supporting membrane and dendrimers as a modifier. The membranes from polydendrons showed better oxygen permselectivities than those of conventional polymer membranes. In the second part, three kinds of enantioselectively permeable membranes reported by many researchers, i.e., chiral carriers-containing composite membranes, membranes based on chiral HPLC stationary phase polymers, and chiral molecular imprinting membranes, are reviewed briefly. In particular, the detail of our macromolecular designs of one-handed helical poly(substituted acetylene)s as materials for enantioselectively permeable membranes is discussed as the fourth category. When the content of the chiral groups was higher, the permselectivity was enhanced. The one-handed helical backbones were found to be effective for enantioselective permeation. It was also shown that the disadvantage of this method, i.e., low permeation rate was improved by using thinner membranes. In addition, enantioselectively permeable membranes are classified from the view point of their permeation mechanisms.

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Section: Dendrimers Supported By Membranesmentioning

confidence: 99%

Section: Dendrimers Supported By Membranesmentioning

confidence: 99%

New Macromolecular Architectures for Permselective Membranes—Gas Permselective Membranes from Dendrimers and Enantioselectively Permeable Membranes from One-handed Helical Polymers—

Aoki

Kaneko

2005

Polym J

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“…It was suggested that the permeance of CO 2 could be increased by increasing CO 2 carrier solubility in the ILM liquid and by preparing ILMs with thinner hydrophilic supports. In another study by the same authors [202,203], they used polyamidoamine (PAMAM) generation 0 dendrimers having ethylenediamine as the CO 2 carrier in porous hydrophilic polyvinyldine fluoride supported ILM. Dendrimer immobilized liquid membranes containing a high concentration of primary and tertiary amine provided a facilitated CO 2 transport and also nearly eliminated the other gases.…”

Section: Facilitated Transport Membranesmentioning

confidence: 99%

A Review of Carbon Dioxide Selective Membranes: A Topical Report

Shekhawat¹,

Luebke²,

Pennline³

2003

101

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The atmospheric concentration of anthropogenic carbon dioxide (CO 2 ) has been increasing since the start of industrialization in the mid 19th century, and the rate is increasing. It is highly unlikely that fossil fuel combustion, the main contributor to anthropogenic CO 2 , will be replaced in the foreseeable future. Therefore, CO 2 capture and storage offer a new set of options for reducing greenhouse gas emissions, in addition to the current strategies of improving energy efficiency and increasing the use of renewable energy resources. Carbon dioxide selective membranes provide a viable energy-saving alternative for CO 2 separation, since membranes do not require any phase transformation. This review examines various CO 2 selective membranes for the separation of CO 2 and N 2 , CO 2 and CH 4 , and CO 2 and H 2 from flue or fuel gas. This review attempts to summarize recent significant advances reported in the literature about various CO 2 selective membranes, their stability, the effect of different parameters on the performance of the membrane, the structure and permeation properties relationships, and the transport mechanism applied in different CO 2 selective membranes. Finally, the future direction for CO 2 selective membranes is proposed. Hybrid organic-inorganic membranes have become an expanding field of research, as the introduction of organic molecules can improve the characteristics of a matrix. Hydrotalcite-type materials, perovskite-type oxides, lithium zirconate, and lithium silicate are also suggested as candidate materials for high temperature CO 2 selective membranes.

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“…Works on gas separation applications using membranes composite with PAMAM dendrimer are limited. However, PAMAM dendrimer immobilized liquid membranes are reported by distinguished researchers [8,9]. In this research paper, we have been emphasized on gas separation behaviour of PAMAM dendrimer (G-0,G-1,G-2,G-3,G-4) composite solid membranes due to its stability and regeneration.The dendrimer composite membranes selectively permeated CO 2 because of the reaction between -NH 2 and CO 2 producing a carbamate ion and a protonated base [8].…”

Section: Introductionmentioning

confidence: 96%

“…In this research paper, we have been emphasized on gas separation behaviour of PAMAM dendrimer (G-0,G-1,G-2,G-3,G-4) composite solid membranes due to its stability and regeneration.The dendrimer composite membranes selectively permeated CO 2 because of the reaction between -NH 2 and CO 2 producing a carbamate ion and a protonated base [8]. Sarma et al [9] reported the performance of Poly (amidoamine) (PAMAM G-0 ) dendrimer and ionic liquid composite membranes which provide a challenging way for CO 2 separation performances. Belmabkhout et al [10] reported that amine bearing pore expanded MCM-41 (Mobil Composition of Matter, No 41) Silica can be used for gas separation applications for CO 2 /CH 4 .…”

Section: Introductionmentioning

confidence: 99%

Selective Permeation of CO2 through Amine Bearing Facilitated Transport Membranes

Bharali¹,

Borthakur²,

Hazarika³

2017

J Membra Sci Technol

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The membranes containing facilitated transport groups for Carbon dioxide had been prepared by immobilizing PAMAM ( Polyamidoamine) (Generations 0,1,2,3,4) dendrimer into the polymeric membranes. The dendrimer incorporated membranes were prepared by the phase inversion method. The permeation abilities of the membranes for pure CO 2 and binary mixture of CO 2 /N 2 were calculated. The effects of feed gas pressure on the permeability of the membranes were studied. The results of the permeation experiments showed that PAMAM dendrimer (Generation 4) composite membrane possessed a better CO 2 permeability and selectivity over N 2 than the any other membranes composite with other generations of dendrimer (Generations 0,1,2,3).

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Dendrimer Membranes: A CO₂-Selective Molecular Gate

Cited by 147 publications

References 18 publications

New Macromolecular Architectures for Permselective Membranes—Gas Permselective Membranes from Dendrimers and Enantioselectively Permeable Membranes from One-handed Helical Polymers—

New Macromolecular Architectures for Permselective Membranes—Gas Permselective Membranes from Dendrimers and Enantioselectively Permeable Membranes from One-handed Helical Polymers—

A Review of Carbon Dioxide Selective Membranes: A Topical Report

Selective Permeation of CO2 through Amine Bearing Facilitated Transport Membranes

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Dendrimer Membranes: A CO2-Selective Molecular Gate

Cited by 147 publications

References 18 publications

New Macromolecular Architectures for Permselective Membranes—Gas Permselective Membranes from Dendrimers and Enantioselectively Permeable Membranes from One-handed Helical Polymers—

New Macromolecular Architectures for Permselective Membranes—Gas Permselective Membranes from Dendrimers and Enantioselectively Permeable Membranes from One-handed Helical Polymers—

A Review of Carbon Dioxide Selective Membranes: A Topical Report

Selective Permeation of CO2 through Amine Bearing Facilitated Transport Membranes

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Product

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Dendrimer Membranes: A CO₂-Selective Molecular Gate