TechnoRep - Faculty of Technology and Metallurgy Repository
University of Belgrade - Faculty of Technology and Metallurgy
    • English
    • Српски
    • Српски (Serbia)
  • English 
    • English
    • Serbian (Cyrillic)
    • Serbian (Latin)
  • Login
View Item 
  •   TechnoRep
  • Inovacioni centar
  • Radovi istraživača (Inovacioni centar) / Researchers’ publications (Innovation Centre)
  • View Item
  •   TechnoRep
  • Inovacioni centar
  • Radovi istraživača (Inovacioni centar) / Researchers’ publications (Innovation Centre)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Unique effects of microwave heating on polymerization kinetics of poly(methyl methacrylate) composites

Authorized Users Only
2013
Authors
Spasojević, Pavle
Jovanović, Jelena
Adnađević, Borivoj
Article (Published version)
Metadata
Show full item record
Abstract
The effects of heating mode (conventional and microwave) on the kinetics of isothermal polymerization of MMA composite materials were investigated. Isothermal kinetics curves at temperature range from 343 K to 363 K for both conventional (CH) and microwave heating (MWH) were determined. It was found that the polymerization of MMA composite materials was kinetically elementary reaction for both CH and MWH. The kinetics of CH polymerization can be described by the model of phase-boundary controlled process (contracting volume), whereas the kinetics of MWH polymerization can be described by the model of first-order chemical reaction. The kinetics parameters (E-a and In A) of the polymerization under microwave heating are lower than for conventional heating. The established decreases in the activation energy and pre-exponential factor under the MWH compared to the CH is explained with the increase in the energy of ground vibrational level of the C-O valence vibrations (v = 987 cm(-1)) in m...ethyl methacrylate molecule and with the decrease in its anharmonicity factor which is caused with the selective resonant transfer of energy from the energetic reservoir to the oscillators in methyl methacrylate molecules.

Keywords:
Polymers / Composite materials / Heat treatment / Irradiation effects
Source:
Materials Chemistry and Physics, 2013, 141, 2-3, 882-890
Publisher:
  • Elsevier Science Sa, Lausanne
Funding / projects:
  • Dynamics of nonlinear physicochemical and biochemical systems with modeling and predicting of their behavior under nonequilibrium conditions (RS-172015)

DOI: 10.1016/j.matchemphys.2013.06.019

ISSN: 0254-0584

WoS: 000323806600040

Scopus: 2-s2.0-84881136902
[ Google Scholar ]
6
2
URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2392
Collections
  • Radovi istraživača (Inovacioni centar) / Researchers’ publications (Innovation Centre)
Institution/Community
Inovacioni centar
TY  - JOUR
AU  - Spasojević, Pavle
AU  - Jovanović, Jelena
AU  - Adnađević, Borivoj
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2392
AB  - The effects of heating mode (conventional and microwave) on the kinetics of isothermal polymerization of MMA composite materials were investigated. Isothermal kinetics curves at temperature range from 343 K to 363 K for both conventional (CH) and microwave heating (MWH) were determined. It was found that the polymerization of MMA composite materials was kinetically elementary reaction for both CH and MWH. The kinetics of CH polymerization can be described by the model of phase-boundary controlled process (contracting volume), whereas the kinetics of MWH polymerization can be described by the model of first-order chemical reaction. The kinetics parameters (E-a and In A) of the polymerization under microwave heating are lower than for conventional heating. The established decreases in the activation energy and pre-exponential factor under the MWH compared to the CH is explained with the increase in the energy of ground vibrational level of the C-O valence vibrations (v = 987 cm(-1)) in methyl methacrylate molecule and with the decrease in its anharmonicity factor which is caused with the selective resonant transfer of energy from the energetic reservoir to the oscillators in methyl methacrylate molecules.
PB  - Elsevier Science Sa, Lausanne
T2  - Materials Chemistry and Physics
T1  - Unique effects of microwave heating on polymerization kinetics of poly(methyl methacrylate) composites
EP  - 890
IS  - 2-3
SP  - 882
VL  - 141
DO  - 10.1016/j.matchemphys.2013.06.019
ER  - 
@article{
author = "Spasojević, Pavle and Jovanović, Jelena and Adnađević, Borivoj",
year = "2013",
abstract = "The effects of heating mode (conventional and microwave) on the kinetics of isothermal polymerization of MMA composite materials were investigated. Isothermal kinetics curves at temperature range from 343 K to 363 K for both conventional (CH) and microwave heating (MWH) were determined. It was found that the polymerization of MMA composite materials was kinetically elementary reaction for both CH and MWH. The kinetics of CH polymerization can be described by the model of phase-boundary controlled process (contracting volume), whereas the kinetics of MWH polymerization can be described by the model of first-order chemical reaction. The kinetics parameters (E-a and In A) of the polymerization under microwave heating are lower than for conventional heating. The established decreases in the activation energy and pre-exponential factor under the MWH compared to the CH is explained with the increase in the energy of ground vibrational level of the C-O valence vibrations (v = 987 cm(-1)) in methyl methacrylate molecule and with the decrease in its anharmonicity factor which is caused with the selective resonant transfer of energy from the energetic reservoir to the oscillators in methyl methacrylate molecules.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Materials Chemistry and Physics",
title = "Unique effects of microwave heating on polymerization kinetics of poly(methyl methacrylate) composites",
pages = "890-882",
number = "2-3",
volume = "141",
doi = "10.1016/j.matchemphys.2013.06.019"
}
Spasojević, P., Jovanović, J.,& Adnađević, B.. (2013). Unique effects of microwave heating on polymerization kinetics of poly(methyl methacrylate) composites. in Materials Chemistry and Physics
Elsevier Science Sa, Lausanne., 141(2-3), 882-890.
https://doi.org/10.1016/j.matchemphys.2013.06.019
Spasojević P, Jovanović J, Adnađević B. Unique effects of microwave heating on polymerization kinetics of poly(methyl methacrylate) composites. in Materials Chemistry and Physics. 2013;141(2-3):882-890.
doi:10.1016/j.matchemphys.2013.06.019 .
Spasojević, Pavle, Jovanović, Jelena, Adnađević, Borivoj, "Unique effects of microwave heating on polymerization kinetics of poly(methyl methacrylate) composites" in Materials Chemistry and Physics, 141, no. 2-3 (2013):882-890,
https://doi.org/10.1016/j.matchemphys.2013.06.019 . .

DSpace software copyright © 2002-2015  DuraSpace
About TechnoRep | Send Feedback

OpenAIRERCUB
 

 

All of DSpaceInstitutions/communitiesAuthorsTitlesSubjectsThis institutionAuthorsTitlesSubjects

Statistics

View Usage Statistics

DSpace software copyright © 2002-2015  DuraSpace
About TechnoRep | Send Feedback

OpenAIRERCUB