Adnađević, Borivoj

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  • Adnađević, Borivoj (1)
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Influence of the HAp ratio on the thermodynamic and kinetic parameters of PDMS/HAp composites cross-linking

Jovanović, Jelena; Adnađević, Borivoj; Suljovrujić, Edin H.; Ignjatović, Nenad; Uskoković, Dragan

(2003)

TY  - CONF
AU  - Jovanović, Jelena
AU  - Adnađević, Borivoj
AU  - Suljovrujić, Edin H.
AU  - Ignjatović, Nenad
AU  - Uskoković, Dragan
PY  - 2003
UR  - http://dais.sanu.ac.rs/123456789/2746
AB  - Injectable and gas-permeable composite cements, polydimethylsiloxane/hydroxyapatite (PDMS/HAp), were synthesized using bi-component polysiloxane precursors (RTV-A and RTV-B), which react by hydrosilylation, and different mass fractions of hydroxyapatite (HAp) having particle size of about 100 nm. The effect of HAp mass fraction (0-60%) on the thermodynamic and kinetic parameters of polysiloxanes cross-linking, i.e., PDMS/HAp composite preparation, was investigated by means of differential scanning calorimetry (DSC). It was determined that small mass fractions of HAp (up to about 10%) cause a decrease in temperature (T-max), and activation energy (E-a) of the investigated cross-linking process, while the total heat of the process (H-tot) increases. For the HAp mass fraction greater than 20%, an opposite effect was observed. The temperature and the time interval of cross-linking increase rapidly for smaller, but slowly, almost insignificantly, for larger HAp mass fractions. The determined order (n) of the reaction shows a trend similar to H-tot, but due to small variations found, this does not merit discussion.
C3  - Contemporary Studies in Advanced Materials and Processes, 4th Yugoslav-Materials-Research-Society Conference, Sep 10-14, 2001, Herceg Novi, Yugoslavia
T1  - Influence of the HAp ratio on the thermodynamic and kinetic parameters of PDMS/HAp composites cross-linking
SP  - 263
EP  - 268
DO  - 10.4028/www.scientific.net/MSF.413.263
ER  - 
@conference{
author = "Jovanović, Jelena and Adnađević, Borivoj and Suljovrujić, Edin H. and Ignjatović, Nenad and Uskoković, Dragan",
year = "2003",
url = "http://dais.sanu.ac.rs/123456789/2746",
abstract = "Injectable and gas-permeable composite cements, polydimethylsiloxane/hydroxyapatite (PDMS/HAp), were synthesized using bi-component polysiloxane precursors (RTV-A and RTV-B), which react by hydrosilylation, and different mass fractions of hydroxyapatite (HAp) having particle size of about 100 nm. The effect of HAp mass fraction (0-60%) on the thermodynamic and kinetic parameters of polysiloxanes cross-linking, i.e., PDMS/HAp composite preparation, was investigated by means of differential scanning calorimetry (DSC). It was determined that small mass fractions of HAp (up to about 10%) cause a decrease in temperature (T-max), and activation energy (E-a) of the investigated cross-linking process, while the total heat of the process (H-tot) increases. For the HAp mass fraction greater than 20%, an opposite effect was observed. The temperature and the time interval of cross-linking increase rapidly for smaller, but slowly, almost insignificantly, for larger HAp mass fractions. The determined order (n) of the reaction shows a trend similar to H-tot, but due to small variations found, this does not merit discussion.",
journal = "Contemporary Studies in Advanced Materials and Processes, 4th Yugoslav-Materials-Research-Society Conference, Sep 10-14, 2001, Herceg Novi, Yugoslavia",
title = "Influence of the HAp ratio on the thermodynamic and kinetic parameters of PDMS/HAp composites cross-linking",
pages = "263-268",
doi = "10.4028/www.scientific.net/MSF.413.263"
}
Jovanović, J., Adnađević, B., Suljovrujić, E. H., Ignjatović, N.,& Uskoković, D. (2003). Influence of the HAp ratio on the thermodynamic and kinetic parameters of PDMS/HAp composites cross-linking.
Contemporary Studies in Advanced Materials and Processes, 4th Yugoslav-Materials-Research-Society Conference, Sep 10-14, 2001, Herceg Novi, Yugoslavia, 263-268.
https://doi.org/10.4028/www.scientific.net/MSF.413.263
Jovanović J, Adnađević B, Suljovrujić EH, Ignjatović N, Uskoković D. Influence of the HAp ratio on the thermodynamic and kinetic parameters of PDMS/HAp composites cross-linking. Contemporary Studies in Advanced Materials and Processes, 4th Yugoslav-Materials-Research-Society Conference, Sep 10-14, 2001, Herceg Novi, Yugoslavia. 2003;:263-268
Jovanović Jelena, Adnađević Borivoj, Suljovrujić Edin H., Ignjatović Nenad, Uskoković Dragan, "Influence of the HAp ratio on the thermodynamic and kinetic parameters of PDMS/HAp composites cross-linking" Contemporary Studies in Advanced Materials and Processes, 4th Yugoslav-Materials-Research-Society Conference, Sep 10-14, 2001, Herceg Novi, Yugoslavia (2003):263-268,
https://doi.org/10.4028/www.scientific.net/MSF.413.263 .
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