ISSN:
0887-624X
Schlagwort(e):
polyamic acid models
;
kinetics
;
mechanisms
;
RMN solid-state rayons X
;
Chemistry
;
Polymer and Materials Science
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
We have synthesized and studied the ring dehydration mechanisms and kinetics of polyamic acid models in solution and in the solid state using 13C-NMR (solid and liquid), HPLC, FTIR, and x-ray diffraction. Results obtained in solution show the role of temperature, catalysts, and the basicity of the amine in ring dehydration mechanisms and kinetics, as well as conformation and intramolecular bonds in the amic acid bond in the solid state. © 1993 John Wiley & Sons, Inc.
Zusätzliches Material:
25 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/pola.1993.080311122