Physical aging in polymers and polymer nanocomposites: recent results and open questions

D Cangialosi, VM Boucher, A Alegría, J Colmenero - Soft Matter, 2013 - pubs.rsc.org
Physical aging is a ubiquitous phenomenon in glassy materials and originates from the fact
that they are generally out-of-equilibrium. Due to the technological and fundamental …

Effect of nanostructure on the thermal glass transition and physical aging in polymer materials

D Cangialosi, A Alegria, J Colmenero - Progress in Polymer Science, 2016 - Elsevier
We review the recent activity aiming to clarify glassy dynamics in nanostructured polymer
glasses, in particular thin films, nanocomposites and nanospheres. Special emphasis is …

Combined FTIR and dielectric investigation of poly (vinyl acetate) adsorbed on silica particles

M Füllbrandt, PJ Purohit, A Schönhals - Macromolecules, 2013 - ACS Publications
Samples with different amounts of poly (vinyl acetate) adsorbed on silica particles were
prepared in order to study their interfacial interactions and dynamics. The interface of …

Structural, dielectric, linear and nonlinear optical parameters of Zn0.9Cu0.1S filled PVA/CMC/PEG blends

AM El-Naggar, ZK Heiba, AM Kamal… - Optical and Quantum …, 2023 - Springer
Casting and solid-state reaction methods were used to prepare composites of
PVA/CMC/PEG/x wt% Zn0. 9Cu0. 1S (x= 0, 1, 3, 5, 10). The nanofiller Zn0. 9Cu0. 1S was …

Dynamics and thermodynamics of polymer glasses

D Cangialosi - Journal of Physics: Condensed Matter, 2014 - iopscience.iop.org
The fate of matter when decreasing the temperature at constant pressure is that of passing
from gas to liquid and, subsequently, from liquid to crystal. However, a class of materials can …

Ion dynamics and positron annihilation studies on polymer ceramic composite electrolyte system (PVA/NaClO4/Y2O3): application in electrochemical devices

C Chavan, RF Bhajantri, S Bulla, HB Ravikumar… - Ceramics …, 2022 - Elsevier
This study aimed to develop a framework to investigate the structural, dielectric, and
transport properties of a sequence-based PVA matrix polymer ceramic composite electrolyte …

The role of cobalt amount in ZnCdS nanofiller on the optical, thermal, dielectric and structure properties of PVA/PVP/PEG blends

AM El-Naggar, ZK Heiba, AM Kamal… - Optical and Quantum …, 2023 - Springer
Undoped and doped polyvinyl alcohol (PVA)/polyvinylpyrrolidone (PVP)/polyethylene glycol
(PEG) blends with nano Zn0. 75− xCd0. 25CoxS (x= 0, 0.05, 0.1, 0.15) were fabricated using …

Extraction and studies of optoelectrical parameters of PVC/Zn0. 9M0. 1S (M: Co, Fe, Mn, V) films

ZK Heiba, AM El-Naggar, AM Kamal, OH Abd-Elkader… - Optical Materials, 2023 - Elsevier
To be used in optoelectronic applications, the nanocomposites films (doped PVC with Zn 0.9
M 0.1 S samples: M= Co, Fe, Mn, V) were prepared in this study. Casting and solid-state …

Interfacial interactions and segmental dynamics of poly (vinyl acetate)/silica nanocomposites

Y Lin, L Liu, G Xu, D Zhang, A Guan… - The Journal of Physical …, 2015 - ACS Publications
We investigate the interfacial interactions and segmental dynamics of hydrophilic and
hydrophobic (calcined) silica nanoparticle (NP) filled poly (vinyl acetate)(PVAc) composites …

Structural, linear/nonlinear optical, and electrical characteristics of polyvinyl chloride doped with non-stoichiometric nano cadmium sulfide

ZK Heiba, AM El-Naggar, AM Kamal… - Optical and Quantum …, 2024 - Springer
In this work, it was proposed to introduce non-stoichiometric nano cadmium sulfide (CdS1-x)
nanoparticles into polyvinyl chloride (PVC) polymer using simple, environmentally friendly …