Morphological, mechanical and gas-transport characteristics of crosslinked poly(propylene glycol): homopolymers, nanocomposites and blends

Patel, Nikunj P.; Aberg, Christopher M.; Sánchez, A.; Capracotta, Michael D.; Martin, James D.; Spontak, Richard J.

doi:10.1016/j.polymer.2004.06.024

Cited by 35 publications

(21 citation statements)

References 35 publications

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“…Doucoure et al [19] had reported in-situ plasma polymerization of fluorinated monomers on mesoporous silica membranes. Patel et al [20,21] prepared cross-linked composite membranes of polyethylene glycol (PEG)/silica and poly (propylene glycol) (PPG)/silica by dispersing silica nanoparticles in diacrylate-terminated PEG and PPG, and subsequent radical polymerization initiated by 2,2'-azobisisobutyronitrile (AIBN). Nunes et al [22] synthesized the poly(ether imide) (PEI)/SiO 2 composite membranes by using in-situ polymerization.…”

Section: In-situ Polymerization Methodsmentioning

confidence: 99%

Polymer-nanoinorganic particles composite membranes: a brief overview

Han

2009

Front. Chem. Eng. China

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Polymer-nanoinorganic particles composite membranes present an interesting approach for improving the physical and chemical, as well as separation properties of polymer membranes, because they possess characteristics of both organic and inorganic membranes such as good permeability, selectivity, mechanical strength, thermal stability and so on. The preparations and structures of polymer-nanoinorganic particles composite membranes and their unique properties are reviewed.

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Section: In-situ Polymerization Methodsmentioning

confidence: 99%

Polymer-nanoinorganic particles composite membranes: a brief overview

Han

2009

Front. Chem. Eng. China

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“…As a result, the available vacant sites in polymer matrix are increased which accounts for the increase in the solvent uptake during swelling. [35][36][37][38] However, the observed decrease in crosslinking density may be attributed to the increase in exfoliated dispersion in the nanocomposites. 39 …”

Section: Limiting Oxygen Indexmentioning

confidence: 99%

Rubber/LDH nanocomposites by solution blending

Kuila

Srivastava

Bhowmick

2008

J of Applied Polymer Sci

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The rubber nanocomposites containing ethylene vinyl acetate (EVA) having 60 wt % of vinyl acetate content and organomodified layered double hydroxide (DS-LDH) as nanofiller have been prepared by solution intercalation method and characterized. The XRD and TEM analysis demonstrate the formation of completely exfoliated EVA/DS-LDH nanocomposites for 1 wt % filler loading followed by partially exfoliated structure for 5-8 wt % of DS-LDH content. EVA/DS-LDH nanocomposites show improved mechanical properties such as tensile strength (TS) and elongation at break (EB) in comparison with neat EVA. The maximum value of TS (5.1 MPa) is noted for 3 wt % of DS-LDH content with respect to TS value of pure EVA (2.6 MPa). The data from thermogravimetric analysis show the improvement in thermal stability of the nanocomposites by %15 C with respect to neat EVA. Limiting oxygen index measurements show that the nanocomposites act as good flame retardant materials. Swelling property analysis shows improved solvent resistance behavior of the nanocomposites (1, 3, and 5 wt % DS-LDH content) compared with neat EVA-60.

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“…However, the affinity of the membrane material for CO 2 must not be too high such that a strong bond is formed with CO 2 , or else the CO 2 flux will suffer detrimentally. Other rubbery polymers that may be of interest for CO 2 separation (reverse H 2 separation) include polyphosphazenes [55,56] and poly(ethylene glycol) [57][58][59], although, substantial work is required in this area before commercialisation can occur. A disadvantage of these membranes is that although they are more permeable to condensable gases such as CO 2 or H 2 S at lower temperatures (25 1C), with increasing temperature H 2 becomes more mobile and these membranes may also allow H 2 to migrate through [60].…”

Section: Article In Pressmentioning

confidence: 99%

Materials for separation membranes in hydrogen and oxygen production and future power generation

Phair

Badwal²

2006

Science and Technology of Advanced Materials

110

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Future fossil fuel power generation is likely to include technologies which increase process efficiency and reduce its impact on the environment, for example, CO 2 sequestration. Some of the key technologies identified for clean coal and natural gas combustion to produce power or hydrogen or both include O 2 generation/separation, H 2 and CO 2 separation. Hydrogen is considered as a potentially excellent substitute for transport fuels due to the concern over dwindling oil reserves and global warming. This paper discusses various separation processes that may be used in the industrial production of hydrogen from fossil fuels, with an emphasis on membrane separation technologies. Membrane separation has the advantage over other separation methods in that it is simple and potentially less energy intensive. Depending on the particular separation process utilised, however, the membrane materials can differ substantially. The materials used for H 2 , O 2 and CO 2 separation are discussed and the major similarities and differences between the membranes highlighted. Critical design aspects of the membrane such as multiple phase design, nano-structure control, the need for surface layers and fabrication processes are also reviewed as they represent the areas where most research and development effort is likely to be directed in the future. r

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Morphological, mechanical and gas-transport characteristics of crosslinked poly(propylene glycol): homopolymers, nanocomposites and blends

Cited by 35 publications

References 35 publications

Polymer-nanoinorganic particles composite membranes: a brief overview

Polymer-nanoinorganic particles composite membranes: a brief overview

Rubber/LDH nanocomposites by solution blending

Materials for separation membranes in hydrogen and oxygen production and future power generation

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