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Preparation and Properties of Hyperbranched Aromatic Polyimides via Polyamic Acid Methyl Ester Precursors

โœ Scribed by Yamanaka, Kazuhiro; Jikei, Mitsutoshi; Kakimoto, Masa-aki

Book ID
118185511
Publisher
American Chemical Society
Year
2000
Tongue
English
Weight
270 KB
Volume
33
Category
Article
ISSN
0024-9297

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Polyamide acid was prepared from pyromellitic dianhydride (PMDA) and p-phenylenediamine (PDA) and was then reacted with NaH and methyl iodide to transform into methyl ester having various degrees of esterification. Polyamide acid methyl ester was also prepared by the polymerization between PDA and a