Transcrystallized Isotactic PP Induced by Pulling of a Carbon Fiber

Morphology of Transcrystallized Isotactic PP Induced by Pulling of a Carbon Fiber 

Sample Preparation Melt-Crystallization, Sectioning and KMn04 Etching 

8Caution Consult appropriate literature and ensure that safety regulations are being followed. Strong oxidants and acids are used. Conditions 0.7 % w/v of potassium permanganate in a mixture of sulfuric acid (95-97%, Merck) and phosphoric acid (85%, Aldrich) in the volumetric ratio of 2 1. Specimens are etched in 0.7 % w/v of the permanganic solution at room temperature typically over 5 h. The etched 

Imaging of Fiber-Polymer Interface and Interphase using Contact Mode AFM 

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Fig. 18. SFM image of the a, 8-cylindritic columnar morphology of transcrystallized isotactic PP induced by pulling of a carbon fiber. On the basis of these observations, Vancso and co-workers concluded that the lamellar growth occurs during epitaxial crystallization on bundles of extended isotactic PP chains, which form during shearing of the polymer matrix by fiber pull. Reprinted with permission from Ref 183. Copyright (1997) Steinkopff Verlag.

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