Tip-Enhanced Raman Spectroscopy Study of Local Interactions at the Interface of Styrene鈥揃utadiene Rubber/Multiwalled Carbon Nanotube Nanocomposites

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• 作者：Toshiaki Suzuki ; Xinlei Yan ; Yasutaka Kitahama ; Harumi Sato ; Tamitake Itoh ; Takeshi Miura ; Yukihiro Ozaki
• 刊名：The Journal of Physical Chemistry C
• 出版年：2013
• 出版时间：January 24, 2013
• 年：2013
• 卷：117
• 期：3
• 页码：1436-1440
• 全文大小：333K
• 年卷期：v.117,no.3(January 24, 2013)
• ISSN：1932-7455

文摘

Tip-enhanced Raman scattering (TERS) spectral measurements of nanocomposite styrene鈥揵utadiene rubber (SBR) and multiwalled carbon nanotubes (MWCNTs) films were used to explore the local molecular interaction between nanocomposites. TERS spectra from geographically separated points were attributable to SBR or MWCNTs, showing great potential for investigating local film inhomogeneity within several tens of nanometers. Such inhomogeneity has never been observed by confocal Raman measurements. TERS bands due to SBR phenyl groups were strong when MWCNT bands were strong, whereas vinyl-group TERS bands were strong when the MWCNT bands were weak. Analysis of the findings suggests that the local distribution of polymer chains is modified with changes in the orientation of the phenyl rings by 蟺鈥撓€ interactions between the polymer chains and the MWCNTs.