公开(公告)号：US20240035972A1

公开(公告)日：2024-02-01

申请号：US17816526

申请日：2022-08-01

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Kazem V. Edmond ,  David L. Perkins ,  Daniella Mendez

IPC: G01N21/64 ,  G01N33/28

CPC classification number: G01N21/6428 ,  G01N33/2823

Abstract: Identification of aromatic interactions, e.g. π-interactions, of mesophase formation, and methods related thereto, including the use of fluorescent light and optical imaging and/or detection schemes for the identification of π-interactions of mesophase formation, and methods related thereto. Methods include interacting fluorescent light with a pitch composition; receiving fluorescent light emissions from the pitch composition; and detecting the onset of mesophase formation upon detecting a normalized fluorescence intensity (I/I0) of the fluorescent light emissions in the range of about 0.4 to about 0.7 at a wavelength in the range of about 430 nm to about 470 nm for an exposure of about 1.5 seconds.