Dielectric Response of Onion-Like Carbon-Based Polymethyl Methacrylate Composites
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Journal |
Journal of Nanoelectronics and Optoelectronics
ISSN: 1555-130X
, E-ISSN: 1555-1318
|
| Output data |
Year: 2009,
Volume: 4,
Number: 2,
Pages: 261-266
Pages count
: 6
DOI:
10.1166/jno.2009.1029
|
| Tags |
Dielectric analysis, Nanocarbon composite, Onion like carbon |
| Authors |
Macutkevic J.
1
,
Seliuta D.
1
,
Valusis G.
1
,
Banys J.
2
,
Kuzhir P.
3
,
Maksimenko S.
3
,
Batrakov K.
3
,
Kuznetsov V.
4
,
Moseenkov S.
4
,
Shenderova O.
5
,
Lambin Ph.
6
|
| Affiliations |
| 1 |
Center for Physical Sciences and Technology, Institute of Chemistry
|
| 2 |
Vilniaus Universitetas
|
| 3 |
Белорусский государственный экономический университет
|
| 4 |
Boreskov Institute of Catalysis SB RAS
|
| 5 |
International Technology Center
|
| 6 |
University of Namur
|
|
Funding (8)
|
1
|
Russian Foundation for Basic Research
|
05-03-32995
|
|
2
|
North Atlantic Treaty Organization
|
SFP-981051
|
|
3
|
The Ministry of Education and Science of the Russian Federation
|
2.1.1.1604
|
|
4
|
North Atlantic Treaty Organization
|
CBP.EAP.CLG 982007
|
|
5
|
International Association for the Promotion of Co-operation with Scientists from the New Independent States of the Former Soviet Union
|
06-1000013-9225
|
|
6
|
State Studies Foundation
|
V-07018
|
|
7
|
Russian Foundation for Basic Research
|
06-03-81038
|
|
8
|
Belarusian Republican Foundation for Fundamental Research
|
F08R-009
|
The dielectric properties of polymethyl methacrylate films with embedded onion-like carbon particles have been studied from 20 Hz to 1 MHz to investigate the structural relaxations of the composite material by varying the temperature between 240 and 520 K. The temperature behaviour of the complex permittivity at a given frequency is found to be strongly dependent on the nanocarbon concentration. A small effect of the onion-like carbon concentration on the beta transition of the polymer composite has been observed, which indicates that the included onion-like carbon particles do not block the rotational degrees of freedom of the ester groups along the polymer chains. By contrast, it has been found that embedding the nanocarbon fillers to the polymethyl methacrylate matrix changes significantly the alpha transition and the melting temperatures in a non-monoto-nous way.