TY - JOUR
T1 - Effects of gamma radiation on poly(methyl methacrylate)/single-wall nanotube composites
AU - O'Rourke, P. A.
AU - Clayton, Muisener L.
AU - D'Angelo, J.
AU - Harmon, J. P.
AU - Sikder, A. K.
AU - Kumar, A.
AU - Cassell, A. M.
AU - Meyyappan, M.
PY - 2002/10
Y1 - 2002/10
N2 - Single-wall carbon nanotube (SWNT)/poly(methyl methacrylate) (PMMA) composites were fabricated and exposed to ionizing radiation for a total dose of 5.9 Mrads. Neat nanotube paper and pure PMMA were also exposed for comparison, and nonirradiated samples served as controls. A concentration of 0.26 wt% SWNT increased the glass transition temperature (Tg), the Vickers hardness number, and modulus of the matrix. Irradiation of the composite did not significantly change the Tg, the Vickers hardness number, or the modulus; however, the real and imaginary parts of the complex permittivity increased after irradiation. The dielectric properties were found to be more labile to radiation effects than mechanical properties.
AB - Single-wall carbon nanotube (SWNT)/poly(methyl methacrylate) (PMMA) composites were fabricated and exposed to ionizing radiation for a total dose of 5.9 Mrads. Neat nanotube paper and pure PMMA were also exposed for comparison, and nonirradiated samples served as controls. A concentration of 0.26 wt% SWNT increased the glass transition temperature (Tg), the Vickers hardness number, and modulus of the matrix. Irradiation of the composite did not significantly change the Tg, the Vickers hardness number, or the modulus; however, the real and imaginary parts of the complex permittivity increased after irradiation. The dielectric properties were found to be more labile to radiation effects than mechanical properties.
UR - http://www.scopus.com/inward/record.url?scp=0036804218&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036804218&partnerID=8YFLogxK
U2 - 10.1557/jmr.2002.0365
DO - 10.1557/jmr.2002.0365
M3 - Article
AN - SCOPUS:0036804218
SN - 0884-2914
VL - 17
SP - 2507
EP - 2513
JO - Journal of Materials Research
JF - Journal of Materials Research
IS - 10
ER -