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Synthesis and characterization of block copoly(urethane–imide)
Author(s) -
Jeon JongYoung,
Tak TaeMoon
Publication year - 1996
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/(sici)1097-4628(19961031)62:5<763::aid-app7>3.0.co;2-u
Subject(s) - imide , copolymer , polymer chemistry , isocyanate , materials science , sulfone , solubility , polyimide , intrinsic viscosity , infrared spectroscopy , inherent viscosity , polymerization , polyurethane , chemistry , organic chemistry , polymer , composite material , layer (electronics)
A newly synthetic method has been developed for the preparation of block copoly(urethaneimide) (PUI). The copolymer was yielded from the direct reaction of the prepolyurethane terminated with isocyanate and the prepolyimide terminated with anhydride. The latter is prepared by reacting an excess amount of pyromellic dianhydride (PMDA) with bis [4‐(3‐aminophenoxy)phenyl] sulfone (BAPS) in one‐step polymerization. The structure was confirmed by infrared (IR) spectra. Other characterizations were evaluated. Among them were solubility, viscosity, mechanical properties, and thermal properties. © 1996 John Wiley & Sons, Inc.