To investigate the nucleation effect of hydroxyl-purified multiwalled carbon nanotubes (MWNTs-OH) in poly(p-phenylenesulfide) (PPS), a series of composites were prepared by blending PPS with MWNTs-OH at 1, 2, and 3 wt %, respectively. Under SEM observation MWNTs-OH were found homogeneously dispersed in the PPS matrix. DSC thermograms revealed that the enthalpy (ΔHc) of the composites increased with increasing MWNT-OH content, whereas the crystallization temperature (Tc) decreased progressively. The decrease in Tc was in accordance with the smaller crystallite size determined with WXRD characterization, and the increase in ΔHc was evidenced by FTIR and XPS analyses. The higher ΔHc shows that MWNTs-OH serves as a nucleating agent, providing sufficiently multiplied sites for crystal growth. The lowering of Tc was attributed not only to MWNTs-OH network hindrance to PPS chain fusing rearrangement, but also to a poorer affinity between MWNTs-OH and PPS; both effects coordinately govern Tc of PPS/MWNTs-OH composites. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
If you can't find a tool you're looking for, please click the link at the top of the page to "Go to old article view". Alternatively, view our Knowledge Base articles for additional help. Your feedback is important to us, so please let us know if you have comments or ideas for improvement.