Probing the free volume in polymers by means of positron annihilation lifetime spectroscopy
G Consolati, D Nichetti, F Quasso - Polymers, 2023 - mdpi.com
Positron annihilation lifetime spectroscopy (PALS) is a valuable technique to investigate
defects in solids, such as vacancy clusters and grain boundaries in metals and alloys, as …
defects in solids, such as vacancy clusters and grain boundaries in metals and alloys, as …
Recent advances in nanotechnology-based modifications of micro/nano PET plastics for green energy applications
Abstract Poly (ethylene terephthalate)(PET) plastic is an omnipresent synthetic polymer in
our lives, which causes negative impacts on the ecosystem. It is crucial to take mandatory …
our lives, which causes negative impacts on the ecosystem. It is crucial to take mandatory …
Barrier properties of semicrystalline polylactide: The role of the density of the amorphous regions
M Safandowska, C Makarewicz, A Rozanski… - …, 2022 - ACS Publications
The work explains the mechanism of the improvement of oxygen barrier performance of cold-
crystalized polylactide (PLA) modified with low molecular weight compounds (triethyl citrate …
crystalized polylactide (PLA) modified with low molecular weight compounds (triethyl citrate …
Inner-selective polyethersulfone-polydimethylsiloxane (PES-PDMS) thin film composite hollow fiber membrane for CO2/N2 separation at high pressures
Carbon dioxide (CO 2) is the dominant greenhouse gas (GHG) and thus CO 2 capture from
flue gas of power plants, the main anthropogenic source of emission, is a key approach to …
flue gas of power plants, the main anthropogenic source of emission, is a key approach to …
Minute-Scale Evolution of Free-Volume Holes in Polyethylenes during the Continuous Stretching Process Observed by In Situ Positron Annihilation Lifetime …
D Huang, Y Dong, H Guo, E Yang, Y Chen… - …, 2023 - ACS Publications
Using the newly developed positron annihilation lifetime spectroscopy (PALS) facility with a
high count rate up to 3000 cps, in situ PALS experiments were performed for the first time on …
high count rate up to 3000 cps, in situ PALS experiments were performed for the first time on …
Retrospecting the relationship between interlamellar amorphous structure and intrinsic modulus of semicrystalline polymers via in-situ positron annihilation lifetime …
H Guo, Z Hong, D Huang, E Yang, Z Zhu, C Zhao… - Polymer, 2023 - Elsevier
The structure-property relationship of the interlamellar amorphous phase in semicrystalline
polymers has been a fundamental yet controversial topic in polymer physics for several …
polymers has been a fundamental yet controversial topic in polymer physics for several …
Polyethylene Nanocomposites with Carbon Nanofillers: Similarities and Differences and New Insight on Cavitation in Tensile Drawing
V Rahmanian, A Galeski, A Rozanski - Macromolecules, 2024 - ACS Publications
Polyethylene nanocomposites with most of the known carbon nanoparticles (carbon black,
nanodiamonds, carbon nanotubes, fullerene, graphene, and reduced graphene oxide) were …
nanodiamonds, carbon nanotubes, fullerene, graphene, and reduced graphene oxide) were …
Plastic deformation of polypropylene studied by positron annihilation lifetime spectroscopy
C Makarewicz, M Safandowska, R Idczak… - …, 2022 - ACS Publications
In this work, positron annihilation lifetime spectroscopy (PALS) was used for the first time to
study the plastic deformation of polypropylene. An appropriate methodological approach …
study the plastic deformation of polypropylene. An appropriate methodological approach …
Deformation instabilities and cavitation in plastic deformation of semicrystalline polyethylene
Z Bartczak, A Vozniak - Macromolecules, 2024 - ACS Publications
Tensile deformation behavior of semicrystalline high-density polyethylene (HDPE) was
investigated and compared with compression to identify the main mechanisms and …
investigated and compared with compression to identify the main mechanisms and …
Diminishment the gas permeability of polyethylene by “densification” of the amorphous regions
M Safandowska, C Makarewicz, A Rozanski… - Scientific Reports, 2023 - nature.com
High-density polyethylene/paraffin wax (HDPE/wax) systems with adjustable density of the
amorphous regions were prepared by a melt-blending process to optimize/control the final …
amorphous regions were prepared by a melt-blending process to optimize/control the final …