A1 Journal article (refereed), original research

Structure of Composite Based on Polyheteroarylene Matrix and ZrO2 Nanostars Investigated by Quantitative Nanomechanical Mapping


Open Access publication

Publication Details
Authors: Sokolova Maria P., Smirnov Michael A., Bugrov Alexander N., Geydt Pavel, Popova Elena N., Lähderanta Erkki, Svetlichnyi Valentin M., Toikka Alexander M.
Publisher: MDPI
Publication year: 2017
Language: English
Related Journal or Series Information: Polymers
Volume number: 9
Issue number: 7
ISSN: 2073-4360
JUFO-Level of this publication: 1
Permanent website address: http://www.mdpi.com/2073-4360/9/7/268
Open Access: Open Access publication

Abstract


It is known
that structure of the interface between inorganic nanoparticles and polymers
significantly influences properties of a polymer–inorganic composite. At the
same time, amount of experimental researches on the structure and properties of
material near the inorganic-polymer interface is low. In this work, we report
for the first time the investigation of nanomechanical properties and maps of
adhesion of material near the inorganic-polymer interface for the
polyheteroarylene nanocomposites based on semi-crystalline poly[4,4′-bis
(4″-aminophenoxy)diphenyl]imide 1,3-bis (3′,4-dicarboxyphenoxy) benzene,
modified by ZrO2 nanostars. Experiments were conducted using
quantitative nanomechanical mapping (QNM) mode of atomic force microscopy (AFM)
at the surface areas where holes were formed after falling out of inorganic
particles. It was found that adhesion of AFM cantilever to the polymer surface
is higher inside the hole than outside. This can be attributed to the presence
of polar groups near ZrO2 nanoparticle. QNM measurements revealed
that polymer matrix has increased rigidity in the vicinity of the
nanoparticles. Influence of ZrO2 nanoparticles on the structure and
thermal properties of semi-crystalline polyheteroarylene matrix was studied
with wide-angle X-ray scattering, scanning electron microscopy, and
differential scanning calorimetry.


Last updated on 2018-19-10 at 07:55