Novel polyesteramides were synthesized by copolymerization in bulk of 5-(4,5-dihydro-1,3-oxazol-2-yl)-1-pentanol and various cyclic dicarboxylic acid anhydrides at temperatures varying between 120 and 200Β°C. The polymers resulting from polycondensation were characterized by means of 1 H-NMR, FTIR, M
Preparation of Saturated and Unsaturated Ketocarboxylic Acids from Dicarboxylic Anhydrides and Alkylaluminum Compounds
β Scribed by Dr. H. Reinheckel; Dr. K. Haage
- Publisher
- John Wiley and Sons
- Year
- 1966
- Tongue
- English
- Weight
- 201 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0044-8249
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π SIMILAR VOLUMES
bivalent mercury containing the grouping Si-0-Hg. We found, however, that compounds of this type are readily accessible by treatment of mganomercury halides with alkali silanolates in tetrahydrofuran (1 h a t 65 "C): Compound (1) forms colorless, sublimable crystals [2], m.p. 52 OC, is very soluble
New biphenyl-2,2Π-diyl-containing aromatic polyamides having a crank and twisted noncoplannar structure were synthesized in inherent viscosities of 0.39 -1.42 dL/g by the low-temperature solution polycondensation of 2,2Π-bis(4-aminophenyl)biphenyl, prepared in four steps starting from 2-aminobipheny
Alkali and earth-alkali salts of dicyclopentadiene dicarboxylic acid (DCP-DCA) were prepared and employed as monomers in the polyesterification with an β£,-dihalide monomer, such as 1,4-dichlorobutane (DCB), 1,4-dibromobutane (DBB), β£,β£Π-dichloro-p-xylene (DCX), and β£,β£Π-dibromo-p-xylene (DBX). Novel