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Influence of the structure of the diol on the properties of aromatic polyesterimides

✍ Scribed by Z. Jedliński; U. Gaik; M. Fudal; D. Sek

Publisher
Elsevier Science
Year
1976
Tongue
English
Weight
323 KB
Volume
12
Category
Article
ISSN
0014-3057

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✦ Synopsis

A series of aromatic polyesterimides with ester bonds in the side-chains has been obtained by the partial esterification of a polyamic acid prepared from pyromellitic dianhydride and 4,4'-diaminodiphenyl ether with the following aromatic diols:

Influence of the structure of the diol on the thermal, mechanical and dielectric properties of resultant polymer foils has been studied. Properties of these foils have been compared with those obtained for the polypyromellitimide film of the 4,4'-diaminodiphenyl ether.

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The adsorption chromatography of aromatic hydrocarbons was studied for the adsorption system alumina-n-pentane. The importance of the planarity of the molecules, acid-base interactions of some types of hydrocarbons with the alumina surface and alkylation at different positions in polynuclear aromat