Retardation of thermal degradation of PMMA and PVC by C60

Troitskii, B. B.; Troitskaya, L. S.; Yakhnov, A.S.; Lopatin, M. A.; Новикова, М. А.

doi:10.1016/s0014-3057(97)00048-7

Cited by 78 publications

(46 citation statements)

References 5 publications

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“…The fullerene membranes prepared in this study will be effective for the applications of photoconductive 6 -9,24,25 or electroconductive 26,27 membranes and other applications, 28,29 rather than for the application of gas separation membranes investigated in this study, because the homogeneously dispersed fullerene membranes can be easily prepared using the present conditions and methods. …”

Section: Discussionmentioning

confidence: 99%

Preparation and gas permeation of immobilized fullerene membranes

Higuchi

Agatsuma

Uemiya

et al. 2000

J. Appl. Polym. Sci.

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Fullerene-dispersed membranes were homogeneously prepared under the conditions in which a 10 wt % polystyrene solution containing 1 wt % fullerene was dried under a reduced pressure of 50 cmHg at room temperature. The fullerene membranes prepared with 1,2-dichlorobenzene were found to have the darkest color, and showed no evidence of fullerene crystals in their photomicrographs. UV-visible and infrared absorption spectra of the fullerene membranes showed fullerene bands, which indicated that the fullerene was homogeneously dispersed in the membranes. The permeability coefficients of pure nitrogen, oxygen, carbon dioxide, ethane, and ethylene were found to increase significantly in the fullerene membranes compared to those in the polystyrene membranes, although the ideal separation factors for oxygen/nitrogen and ethylene/ethane in the fullerene membranes (i.e., 4.3 and 1.7, respectively) were slightly less than the separation factors in the polystyrene membranes. The permeability increase originated from the increase in diffusion coefficients in the fullerene membranes.

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Section: Discussionmentioning

confidence: 99%

Preparation and gas permeation of immobilized fullerene membranes

Higuchi

Agatsuma

Uemiya

et al. 2000

J. Appl. Polym. Sci.

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“…CNFs surface absorbs the free radicals produced in the decomposition of PP, which retards the degradation of PP/CNF nanocomposites. [42,43] Noticeably, the relationship between the fiber loading and the elevated decomposition temperature is nonlinear. To be more specific, a small amount of CNFs (for example, 1.0 wt.-%) affect the degradation process of PP significantly; further addition of CNFs does not lead to major improvement of the thermal property.…”

Section: Thermal Properties Of Pp/cnf Nanocompositesmentioning

confidence: 99%

Poly(propylene)/Carbon Nanofiber Nanocomposites: Ex Situ Solvent‐Assisted Preparation and Analysis of Electrical and Electronic Properties

Chen

Wei

Yadav

et al. 2011

Macro Materials & Eng

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CNF‐reinforced PP nanocomposites were fabricated from CNFs dispersed in a boiling PP/xylene solution. Their thermal properties were characterized by TGA and DSC and shown to exhibit improved thermal stability and higher crystallinity. They were further processed into thin films by compression molding. The electrical conductivity and dielectric property of the PP/CNF nanocomposite thin films were studied. Both electric conductivity and real permittivity increased with increasing fiber loading. Electrical conductivity percolation is observed between 3.0 and 5.0 wt.‐% fiber loading. The rheological behavior of the nanocomposite melts were also investigated. It was found that a small fiber concentration affects the modulus and viscosity of PP melt significantly. magnified image

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“…It is well known that C 60 fullerene retard and inhibit the thermal decomposition of poly(methyl methacrylate), 13 polystyrene, 14 acrylic polymers, 15 and poly(N-vinylcarbazole). 16 We have also reported that C 60 fullerene retard and inhibit the thermal decomposition of PEG.…”

Section: Swelling Of C 60 -Peg Gelmentioning

confidence: 99%

A Simple Preparation of C60-Poly(ethylene glycol) Gel and its Properties

et al. 2009

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Poly(ethylene glycol) (PEG) biradicals formed by thermal decomposition of macroazo-initiator, (Azo-PEG) n , which were prepared by the polycondensation of 4,4 0 -azobis(4-cyanopentanoyl chloride) with PEG, were successfully trapped by C 60 fullerene to give C 60 -PEG gel containing C 60 fullerene at cross-linked point. It was found that when the feed ratio (PEG/C 60 ) was less than 3, PEG-grafted C 60 fullerene was formed, but the gelation does not proceed. On the contrary, when the feed ratio exceeded 4, the gelation of PEG successfully proceeded. In the case of the feed ratio is 4, the gel fraction was about 80%, and it was gradually decreased with an increase in the feed ratio. The gel fraction increased with increasing reaction temperature and reached to 80% at 80 C. It is concluded that the reaction conditions to give highest gel fraction is summarized as follows: the feed molar ratio, 5 (mol/mol); concentration of C 60 , 3.5 mmol/L; 70 C; 24 h. The thermal stability of C 60 -PEG gel was dramatically increased in comparison with that of (Azo-PEG) n . C 60 -PEG gel was swelled in solvents, such as water, methanol, and THF and degree of swelling was about 5.1 to 7.8. Breaking strength decreased with increasing the feed molar ratio.

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Retardation of thermal degradation of PMMA and PVC by C60

Cited by 78 publications

References 5 publications

Preparation and gas permeation of immobilized fullerene membranes

Preparation and gas permeation of immobilized fullerene membranes

Poly(propylene)/Carbon Nanofiber Nanocomposites: Ex Situ Solvent‐Assisted Preparation and Analysis of Electrical and Electronic Properties

A Simple Preparation of C60-Poly(ethylene glycol) Gel and its Properties

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