An official website of the United States government
Here's how you know
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Fig. 6. TEM photomicrographs of PAN nanoparticles at different styrene concentrations. (A) 0.25 wt%, (B) 1.0 wt%, (C) 2.0 wt%, ((D)–(F) the particle size of the (A)–(C)).