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Pregled bibliografske jedinice broj: 656951

Synthesis and characterization of polystyrene composites with oxidized and ethyl-benzene functionalized multiwall carbon nanotubes


Faraguna, Fabio; Jukić, Ante; Vidović, Elvira
Synthesis and characterization of polystyrene composites with oxidized and ethyl-benzene functionalized multiwall carbon nanotubes // Journal of composites and biodegradable polymers, 1 (2013), 23-33 (podatak o recenziji nije dostupan, članak, znanstveni)


CROSBI ID: 656951 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Synthesis and characterization of polystyrene composites with oxidized and ethyl-benzene functionalized multiwall carbon nanotubes

Autori
Faraguna, Fabio ; Jukić, Ante ; Vidović, Elvira

Izvornik
Journal of composites and biodegradable polymers (0000-000x) 1 (2013); 23-33

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
contact angle; dispersity; loss factor; storage modul; thermal stability

Sažetak
Polystyrene nanocomposite materials prepared with differently functionalized multiwalled carbon nanotubes (CNT) as nanofillers were investigated. Two types of functionalized multiwall carbon nanotubes were used: oxidized (CNT-COOH) and their ester analogue with ethylbenzene groups (CNT-COOEtBz) introduced by further functionalization of the fore. The functionalized nanotubes were examined by thermogravimetric analysis and contact angle method that both revealed differences between them. Also, their dispersion was investigated in polar methanol and non-polar toluene with the assistance of UV-Vis spectrophotometer. Good dispersion of CNT-COOH in methanol and of CNT-COOEtBz in toluene is in accordance with polarity introduced on the surfaces of carbon nanotubes. Mixtures of styrene monomer and 1 wt. % of CNT-COOH or CNT-COOEtBz in toluene were reacted in a radical in-situ polymerization reaction in order to prepare their nanocomposites. Prior to the reaction nanotubes were dispersed by sonication of the reaction mixture. The synthesized composites were characterized by the SEC, TGA, DSC, DMA, SEM and contact angle method. The DSC measurements show a significant Tg shift towards lower temperature since Tg of studied PS is around 60 oC and Tg of PS composites with CNT-COOH at 35 oC and CNT-COOEtBz at 33 oC. The storage modulus increase in the PS/CNT-COOEtBz composite can be assigned to a larger similarity of matrix and filler structure. This is corroborated with the SEM micrographs where much lesser extent of agglomeration can be seen.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo



POVEZANOST RADA


Projekti:
125-1251963-1980 - Optimiranje svojstava kopolimera procesima usmjerenih radikalskih polimerizacija (Jukić, Ante, MZOS ) ( POIROT)

Ustanove:
Fakultet kemijskog inženjerstva i tehnologije, Zagreb

Profili:

Avatar Url Elvira Vidović (autor)

Avatar Url Fabio Faraguna (autor)

Avatar Url Ante Jukić (autor)


Citiraj ovu publikaciju

Faraguna, Fabio; Jukić, Ante; Vidović, Elvira
Synthesis and characterization of polystyrene composites with oxidized and ethyl-benzene functionalized multiwall carbon nanotubes // Journal of composites and biodegradable polymers, 1 (2013), 23-33 (podatak o recenziji nije dostupan, članak, znanstveni)
Faraguna, F., Jukić, A. & Vidović, E. (2013) Synthesis and characterization of polystyrene composites with oxidized and ethyl-benzene functionalized multiwall carbon nanotubes. Journal of composites and biodegradable polymers, 1, 23-33.
@article{article, year = {2013}, pages = {23-33}, keywords = {contact angle, dispersity, loss factor, storage modul, thermal stability}, journal = {Journal of composites and biodegradable polymers}, volume = {1}, issn = {0000-000x}, title = {Synthesis and characterization of polystyrene composites with oxidized and ethyl-benzene functionalized multiwall carbon nanotubes}, keyword = {contact angle, dispersity, loss factor, storage modul, thermal stability} }
@article{article, year = {2013}, pages = {23-33}, keywords = {contact angle, dispersity, loss factor, storage modul, thermal stability}, journal = {Journal of composites and biodegradable polymers}, volume = {1}, issn = {0000-000x}, title = {Synthesis and characterization of polystyrene composites with oxidized and ethyl-benzene functionalized multiwall carbon nanotubes}, keyword = {contact angle, dispersity, loss factor, storage modul, thermal stability} }




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