STUDY OF SOLUBLE POLYAMIC ACIDS AND POLYE STER IMIDES BY METHODS OF EXCLUSION LIQUID-CHROMATOGRAPHY

Authors
NESTEROV VV KUDRYAVTSEV VV SVETLICHNYI VM GAZDINA NV BELNIKEVICH NG KURENBIN OI ZHUKOVA TI
Citation
Vv. Nesterov et al., STUDY OF SOLUBLE POLYAMIC ACIDS AND POLYE STER IMIDES BY METHODS OF EXCLUSION LIQUID-CHROMATOGRAPHY, Vysokomolekularnye soedinenia. Seria A, 39(8), 1997, pp. 1387-1391
Citations number
20
Categorie Soggetti
Polymer Sciences
Journal title
Vysokomolekularnye soedinenia. Seria A → ACNP
ISSN journal
05075475
Volume
39
Issue
8
Year of publication
1997
Pages
1387 - 1391
Database
ISI
SICI code
0507-5475(1997)39:8<1387:SOSPAA>2.0.ZU;2-2
Abstract
The molecular and conformation characteristics of a series of polyamic acids and polyester imides, obtained by high-temperature imidization of polyamic acids in N-methylpyrrolidinone or m-cresol, were studied b y methods of viscometry and exclusion liquid chromatography. A differe nce in the molecular weights of the products of polyamic acid imidizat ion in N-methylpyrrolidinone and m-cresol are explained by different c haracter of inactivation of the anhydride groups.