Polymer composites containing dispersed VO2 of various polymorphs: Effects of polymer matrix on functional properties

Research output

Abstract

VO2 (B), VO2 (A) and VO2 (M) polymorphs were obtained by energy efficient semi-industrial hydrothermal process. Synthesis of thermochromic VO2 (M) was performed in two steps and included thermal treatment in an inert atmosphere. The crystallographic peculiarities were observed by powder X-ray diffraction study. Scanning electron microscopy and specific surface area estimation showed the influence of recrystallization on the particles size and shape. The technique of VO2 surface modification with electrically conductive polymer (polyaniline) was developed and proved by infrared spectroscopy. The impact of the polymer on the composite properties was investigated in case of three different crystal phases of VO2 with different functionality. Vibrating-sample magnetometry, impedance spectroscopy, cyclic voltammetry and room condition modelling showed that polyaniline surface leads to competitive interactions but doesn't ruin optical switching abilities of VO2 (M). Polyethylene glycol as electrically nonconductive matrix demonstrated the difference in electrical conductivity between VO2 phases while conductive polyaniline eliminated them.

Original languageEnglish
Article number121752
JournalMaterials Chemistry and Physics
Volume235
DOIs
Publication statusPublished - 1 Sep 2019

Fingerprint

Polyaniline
Polymorphism
Polymer matrix
Polymers
composite materials
Composite materials
polymers
matrices
inert atmosphere
optical switching
Specific surface area
X ray powder diffraction
Polyethylene glycols
Cyclic voltammetry
rooms
magnetic measurement
Surface treatment
glycols
polyethylenes
Infrared spectroscopy

Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

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title = "Polymer composites containing dispersed VO2 of various polymorphs: Effects of polymer matrix on functional properties",
abstract = "VO2 (B), VO2 (A) and VO2 (M) polymorphs were obtained by energy efficient semi-industrial hydrothermal process. Synthesis of thermochromic VO2 (M) was performed in two steps and included thermal treatment in an inert atmosphere. The crystallographic peculiarities were observed by powder X-ray diffraction study. Scanning electron microscopy and specific surface area estimation showed the influence of recrystallization on the particles size and shape. The technique of VO2 surface modification with electrically conductive polymer (polyaniline) was developed and proved by infrared spectroscopy. The impact of the polymer on the composite properties was investigated in case of three different crystal phases of VO2 with different functionality. Vibrating-sample magnetometry, impedance spectroscopy, cyclic voltammetry and room condition modelling showed that polyaniline surface leads to competitive interactions but doesn't ruin optical switching abilities of VO2 (M). Polyethylene glycol as electrically nonconductive matrix demonstrated the difference in electrical conductivity between VO2 phases while conductive polyaniline eliminated them.",
keywords = "Hydrothermal synthesis, Polymer-inorganic composite, Semiconductor-to-metal phase transition, Vanadium dioxide",
author = "Petukhova, {Y. V.} and Kudinova, {A. A.} and Bobrysheva, {N. P.} and Levin, {O. V.} and Osmolowsky, {M. G.} and Osmolovskaya, {O. M.}",
year = "2019",
month = "9",
day = "1",
doi = "10.1016/j.matchemphys.2019.121752",
language = "English",
volume = "235",
journal = "Materials Chemistry and Physics",
issn = "0254-0584",
publisher = "Elsevier",

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TY - JOUR

T1 - Polymer composites containing dispersed VO2 of various polymorphs

T2 - Effects of polymer matrix on functional properties

AU - Petukhova, Y. V.

AU - Kudinova, A. A.

AU - Bobrysheva, N. P.

AU - Levin, O. V.

AU - Osmolowsky, M. G.

AU - Osmolovskaya, O. M.

PY - 2019/9/1

Y1 - 2019/9/1

N2 - VO2 (B), VO2 (A) and VO2 (M) polymorphs were obtained by energy efficient semi-industrial hydrothermal process. Synthesis of thermochromic VO2 (M) was performed in two steps and included thermal treatment in an inert atmosphere. The crystallographic peculiarities were observed by powder X-ray diffraction study. Scanning electron microscopy and specific surface area estimation showed the influence of recrystallization on the particles size and shape. The technique of VO2 surface modification with electrically conductive polymer (polyaniline) was developed and proved by infrared spectroscopy. The impact of the polymer on the composite properties was investigated in case of three different crystal phases of VO2 with different functionality. Vibrating-sample magnetometry, impedance spectroscopy, cyclic voltammetry and room condition modelling showed that polyaniline surface leads to competitive interactions but doesn't ruin optical switching abilities of VO2 (M). Polyethylene glycol as electrically nonconductive matrix demonstrated the difference in electrical conductivity between VO2 phases while conductive polyaniline eliminated them.

AB - VO2 (B), VO2 (A) and VO2 (M) polymorphs were obtained by energy efficient semi-industrial hydrothermal process. Synthesis of thermochromic VO2 (M) was performed in two steps and included thermal treatment in an inert atmosphere. The crystallographic peculiarities were observed by powder X-ray diffraction study. Scanning electron microscopy and specific surface area estimation showed the influence of recrystallization on the particles size and shape. The technique of VO2 surface modification with electrically conductive polymer (polyaniline) was developed and proved by infrared spectroscopy. The impact of the polymer on the composite properties was investigated in case of three different crystal phases of VO2 with different functionality. Vibrating-sample magnetometry, impedance spectroscopy, cyclic voltammetry and room condition modelling showed that polyaniline surface leads to competitive interactions but doesn't ruin optical switching abilities of VO2 (M). Polyethylene glycol as electrically nonconductive matrix demonstrated the difference in electrical conductivity between VO2 phases while conductive polyaniline eliminated them.

KW - Hydrothermal synthesis

KW - Polymer-inorganic composite

KW - Semiconductor-to-metal phase transition

KW - Vanadium dioxide

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U2 - 10.1016/j.matchemphys.2019.121752

DO - 10.1016/j.matchemphys.2019.121752

M3 - Article

AN - SCOPUS:85068053142

VL - 235

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

SN - 0254-0584

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