Premium
HPLC analysis of polycarbonate oligomers and its process applications in the interfacial phosgenation reaction
Author(s) -
Gu JenTau,
Huang ShuLang,
Chang FengChih
Publication year - 1990
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1990.070400321
Subject(s) - polycarbonate , oligomer , polymerization , chloroformate , high performance liquid chromatography , materials science , chemistry , chromatography , polymer , polymer chemistry , chemical engineering , organic chemistry , engineering
A liquid chromatographic method for the oligocarbonates and chloroformate‐containing oligomers at various stages in a typical polycarbonate phosgenation reaction has been developed. The accurate measurement of various types oligomers during phosgenation should allow for a better understanding of polymerization mechanism and provide great aid in defining the critical process parameters. Comparison of the total choloroformate concentration by accumulating every individual chlorofor‐mate‐containing componenent and the standard colorimetric method shows close agreement.