Molecularly Tuned Free Volume of Vapor Cross-Linked 6FDA-Durene/ZIF-71 MMMs for H2 /CO2 Separation at 150 °C.
Sign Up to like & getrecommendations! Published in 2017 at "Advanced materials"
DOI: 10.1002/adma.201603833
Abstract: The H2 /CO2 separation properties of di/triamine vapor cross-linked mixed matrix membranes with molecularly tuned free-volume at 150 °C are reported. Free-volume is molecularly tuned by altering the degree of chain-motion using cross-linkers with different… read more here.
Keywords: free volume; cross linked; co2; molecularly tuned ... See more keywords
Confined Assembly of Colloidal Nanorod Superstructures by Locally Controlling Free‐Volume Entropy in Nonequilibrium Fluids
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202202119
Abstract: Long‐range‐ordered structures of nanoparticles with controllable orientation have advantages in applications toward sensors, photoelectric conversion, and field‐effect transistors. The assembly process of nanorods in colloidal systems undergoes a nonequilibrium process from dispersion to aggregation. A… read more here.
Keywords: free volume; orientation; volume entropy; confined assembly ... See more keywords
Free-volume effects on the thermomechanical performance of epoxy–SiO2 nanocomposites
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Applied Polymer Science"
DOI: 10.1002/app.45216
Abstract: In this study, free-volume effects on the thermal and mechanical properties of epoxy–SiO2 nanocomposites were investigated. SiO2 particles ranging from 15 nm to 2 µm were used, and the nature of the matrix–filler interphase was modified by… read more here.
Keywords: epoxy sio2; volume; free volume; volume effects ... See more keywords
A New Pentiptycene-Based Dianhydride and Its High-Free-Volume Polymer for Carbon Dioxide Removal.
Sign Up to like & getrecommendations! Published in 2018 at "ChemSusChem"
DOI: 10.1002/cssc.201701491
Abstract: In addition to possessing excellent chemical, mechanical, and thermal stability, polyimides and polyetherimides have excellent solubility in many solvents, which renders them suitable for membrane preparation. Two new monomers [a pentiptycene-based dianhydride (PPDAn) and a… read more here.
Keywords: pentiptycene; pentiptycene based; polymer; free volume ... See more keywords
Effect of hydrodynamic interaction on free volume changes and the mechanical properties of SGFR‐PBT composites
Sign Up to like & getrecommendations! Published in 2018 at "Polymer Composites"
DOI: 10.1002/pc.24143
Abstract: In order to explore the effect of short glass fiber reinforcement (SGFR) on the mechanical properties of polybutylene terephthalate (PBT), 10–40 wt% of short glass fibers (SGF) are reinforced into PBT matrix. Microstructural characterization has… read more here.
Keywords: sgfr pbt; pbt composites; free volume; mechanical properties ... See more keywords
Tributyl citrate as an effective plasticizer for biodegradable polymers: effect of plasticizer on free volume and transport and mechanical properties
Sign Up to like & getrecommendations! Published in 2018 at "Polymer International"
DOI: 10.1002/pi.5705
Abstract: The effectiveness of tributyl citrate (TbC) as a plasticizer for polylactide and polyhydroxybutyrate was analysed in order to improve the ductility of these polymers and make them good candidates for food packaging applications. Although the… read more here.
Keywords: free volume; mechanical properties; plasticizer; effect plasticizer ... See more keywords
Oxygen barrier, free volume and miscibility properties of fully bio-based polyamide 1010/poly(vinyl alcohol) blends
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Polymer Research"
DOI: 10.1007/s10965-019-1819-0
Abstract: Fully bio-based polyamide 1010 (PA1010) was successfully melt-blended with poly (vinyl alcohol) (PVA03, PVA05, PVA08 and PVA14) to prepare PA1010xPVAzy blends. The PA1010xPVA03y, PA1010xPVA05y, PA1010xPVA08y and PA1010xPVA14y films demonstrated the lowest oxygen transmission rates (OTR),… read more here.
Keywords: polyamide 1010; volume; free volume; bio based ... See more keywords
Radiation induced nano-scale free volume modifications in amorphous polymeric material: a study using positron annihilation lifetime spectroscopy
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Radioanalytical and Nuclear Chemistry"
DOI: 10.1007/s10967-017-5510-9
Abstract: Radiation exposure modifies the nano scale free volume of the polymers which has direct correlation to certain properties of polymeric materials. CR-39 (DOP) polycarbonate polymeric films were exposed to gamma radiation at different doses for… read more here.
Keywords: scale free; free volume; nano scale; spectroscopy ... See more keywords
Conductivity equations of protons transporting through 2D crystals obtained with the rate process theory and free volume concept
Sign Up to like & getrecommendations! Published in 2017 at "Chemical Physics Letters"
DOI: 10.1016/j.cplett.2018.02.059
Abstract: Abstract The Eyring’s rate process theory and free volume concept are employed to treat protons (or other particles) transporting through a 2D (two dimensional) crystal like graphene and hexagonal boron nitride. The protons are assumed… read more here.
Keywords: theory free; free volume; rate; rate process ... See more keywords
Free volume correlation with ac conductivity and thermo-mechanical properties of poly (ethylene oxide)-silica nanocomposites
Sign Up to like & getrecommendations! Published in 2019 at "European Polymer Journal"
DOI: 10.1016/j.eurpolymj.2019.04.049
Abstract: Abstract Poly(ethylene oxide), PEO, based nanocomposites are shown to have higher ionic conductivity compared to pure PEO. In order to investigate the exclusive role of free volume structure of amorphous region of PEO on its… read more here.
Keywords: silica; volume; peo; conductivity ... See more keywords
Determination of parameters of free volume model for Zr-based BMG via nanoindentation
Sign Up to like & getrecommendations! Published in 2021 at "Intermetallics"
DOI: 10.1016/j.intermet.2021.107121
Abstract: Abstract The mechanical behavior of Zr55Cu30Ag15 bulk metallic glass (BMG) was investigated via the free volume theory. Spherical and Berkovich nanoindentation tests were conducted, and corresponding finite element models were constructed by implementing a pressure-dependent… read more here.
Keywords: nanoindentation; volume model; model based; model ... See more keywords