Role of free volume characteristics of polymer matrix in bulk physical properties of polymer nanocomposites: A review of positron annihilation lifetime studies

SK Sharma, PK Pujari - Progress in Polymer Science, 2017 - Elsevier
Polymer nanocomposites which have one or more nano-dimensional phases dispersed in
polymer matrix show enhancement in bulk physical properties. In order to achieve the …

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 …

Lightweight, Flexible and High Energies Absorption Property of PbO2 Doped Polymer Blend for Various Renewable Approaches

H Ahmed, A Hashim - Transactions on Electrical and Electronic Materials, 2021 - Springer
This work reports a theoretical study to investigate the electronic structure and optimized
geometry for (PVA-PEG-PbO 2)(78Atom) by using DFT at B3LYP level with bases set …

Morphology-driven nanofiller size measurement integrated with micromechanical finite element analysis for quantifying interphase in polymer nanocomposites

R Mohsenzadeh, BH Soudmand, A Najafi… - … Applied Materials & …, 2024 - ACS Publications
This study focused on an innovative practical method using computer vision for particle size
measurement, which serves as a key precursor for predicting the elastic modulus of polymer …

Design and characteristics of novel PVA/PEG/Y2O3 structure for optoelectronics devices

H Ahmed, A Hashim - Journal of Molecular Modeling, 2020 - Springer
The aim of the present work entitled electronic structure of PVA-PEG-Y 2 O 3 (54 atom) is to
present a theoretical study based on the hybrid function of three parameters Lee-Yang-Parr …

PVA/nanocellulose nanocomposite membranes for CO2 separation from flue gas

JØ Torstensen, RML Helberg, L Deng… - International Journal of …, 2019 - Elsevier
In this paper, we explore the use of nanocelluloses as an additive to poly (vinyl
alcohol)(PVA) nanocomposite membranes for CO 2/N 2 mixed-gas separation. Our findings …

Determination of optical parameters of films of PVA/TiO2/SiC and PVA/MgO/SiC nanocomposites for optoelectronics and UV-detectors

H Ahmed, A Hashim, HM Abduljalil - Ukrainian journal of physics, 2020 - ujp.bitp.kiev.ua
The optical properties of polyvinyl alcohol (PVA)–titanium oxide (TiO 2)–silicon carbide (SiC)
and (PVA)–magnesium oxide (MgO)–(SiC) nanocomposites are calculated, by using the …

Micromorphology of asphalt modified by polymer and carbon nanotubes through molecular dynamics simulation and experiments: Role of strengthened interfacial …

P Wang, F Zhai, Z Dong, L Wang, J Liao, G Li - Energy & Fuels, 2018 - ACS Publications
Polymer modifiers have been used to improve the performances of asphalt binders in
pavement engineering. The modifying effect of polymers on asphalt is largely dependent on …

Openmouthed β-SiC hollow-sphere with highly photocatalytic activity for reduction of CO2 with H2O

Y Wang, L Zhang, X Zhang, Z Zhang, Y Tong… - Applied Catalysis B …, 2017 - Elsevier
A novel hollow spherical 3D structure of β-SiC with an open mouth was successfully
fabricated by an environmentally friendly approach starting from ethylsilicate interaction with …

Effects of the molecular level dispersion of graphene oxide on the free volume characteristics of poly (vinyl alcohol) and its impact on the thermal and mechanical …

SK Sharma, J Prakash, PK Pujari - Physical Chemistry Chemical …, 2015 - pubs.rsc.org
Poly (vinyl alcohol), PVA, reinforced with carbon nanofillers has shown drastic variations in
thermal as well as mechanical properties. In order to establish structure–property …