The synthesis and investigation of the properties of copolyimides with six-membered imide cycles
✍ Scribed by Ja. S. Vygodskij; Z. M. Nagiev; V. V. Koršak; S. V. Vinogradova; Ja. G. Urman; S. G. Alekseeva; I. Ja. Slonim; G. Reinisch; E. Bonatz; Ė. Jakab; F. Till; G. Rafler
- Publisher
- John Wiley and Sons
- Year
- 1984
- Tongue
- English
- Weight
- 953 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0323-7648
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## Abstract The ring enlargement of 1‐(2,4,6‐trialkylphenyl)2,5‐dihydro‐1H‐phosphole oxides (**1**) via 6,6‐dichloro‐3‐Phosphabicyclo[3.1.0]hexanes (**2**) afforded the double‐bond isomers of 1,2‐dihydrophosphinine oxides (**3**). Catalytic hydrogenation of the isomeric 1‐(di‐tert‐butyltolyl)‐1,2‐d
## SYNOPSIS A series of polyester-imides was prepared from diacid (imide-diacid [Ml-M4] or a mixture of imide-diacid and terephthalic acid [TPA]) and bisphenol A in the presence of diphenyl chlorophosphate (DPCP) and pyridine as a direct condensation agent. The inherent viscosities of homo-and cop