β Scribed by B Rand; S Whitehouse
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Both heating and cooling processes for mesophase formation from various pitches have been followed by in situ ESR measurements. In addition to signal intensity and linewidth, the saturation phenomenon of the signal intensity with changing microwave power was measured during heat treatment and coolin
During the heating of pitch or mesophase, the viscosity first decreases and then increases. The viscosity decrease is a net physical effect and reversible. The viscosity increase is caused by chemical changes and thus it is irreversible. This viscosity behaviour with increasing temperature is import
properties of mesophase pitches were examined using a capillary rheometry at the temperature range of their spinning to clarify influences of temperature, dimension of capillary, and structure and molecular assembly of the mesophase pitch. The viscosity-shear rate correlation curves of mesophase pit
Co-oligomerized mesophase pitch from naphthalene and methylnaphthalene at mixing ratio of 7:3 by aid of HF/BF, was studied in terms of its structure, flow behavior and stabilization reactivity as well as microstructure and mechanical properties of the resultant fiber. The molecular structure of co-o