EFFECT OF THE METHOD OF SYNTHESIS ON THE STRUCTURE OF COPOLY(ARYLENESILOXANEIMIDE)S

Citation
Aa. Martynenkov et al., EFFECT OF THE METHOD OF SYNTHESIS ON THE STRUCTURE OF COPOLY(ARYLENESILOXANEIMIDE)S, Vysokomolekularnye soedinenia. Seria A, 39(2), 1997, pp. 345-348
Citations number
11
Categorie Soggetti
Polymer Sciences
ISSN journal
05075475
Volume
39
Issue
2
Year of publication
1997
Pages
345 - 348
Database
ISI
SICI code
0507-5475(1997)39:2<345:EOTMOS>2.0.ZU;2-4
Abstract
Arylenedimethylsiloxane copoly(amic acid)s were synthesized by simulta neous or sequential addition of siloxane-containing and aromatic diami nes and also by mixing preliminary synthesized siloxane and aromatic o ligomeric homo(amic acid)s bearing terminal amino groups. Correspondin g copolyimides were prepared by imidization of copoly(amic acid)s in N ,N-dimethylacetamide. The microstructure of the resulting copolymers w as studied by C-13 NMR spectroscopy. It is shown that the method of sy nthesis affects the block length of the forming copoly(siloxaneimide) and its mechanical properties.