Raman Laser Polymerization ofC60Nanowhiskers

[摘要] Photopolymerization ofC60nanowhiskers (C60NWs) was investigated by using a Raman spectrometer in air at room temperature, since the polymerizedC60NWs are expected to exhibit a high mechanical strength and a thermal stability. ShortC60NWs with a mean length of 4.4 μm were synthesized by LLIP method (liquid-liquid interfacial precipitation method). TheAg(2) peak ofC60NWs shifted to the lower wavenumbers with increasing the laser beam energy dose, and an energy dose more than about 1520 J/mm2was found necessary to obtain the photopolymerizedC60NWs. However, excessive energy doses at high-power densities increased the sample temperature and lead to the thermal decomposition of polymerizedC60molecules.

[学科分类] 材料工程