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Synthesis and characterization of polyimides based on isopropylidene-containing bis(ether anhydride)s

โœ Scribed by Sheng-Huei Hsiao; Perng-Chih Huang


Book ID
106438234
Publisher
Springer
Year
1997
Tongue
English
Weight
529 KB
Volume
4
Category
Article
ISSN
1022-9760

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Four bis(ether anhydride)s, 4,4ะˆ-(1,4-phenylenedioxy)diphthalic anhydride (IV), 4,4ะˆ-(2,5-tolylenedioxy)-diphthalic anhydride (Me-IV), 4,4ะˆ-(2-chloro-1,4-phenylenedioxy)diphthalic anhydride (Cl-IV), and 4,4ะˆ-(2,5-biphenylenedioxy)diphthalic anhydride (Ph-IV), were prepared in three steps starting fr