A homologous series of polyarylates were prepared by condensation polymerization of three different bisphenols, isophthaloyl, and terephthaloyl chlorides (their molar ratio ฯญ 2:1:1). The resulting polyarylates were tetramethyl bisphenol S-(TMBPS-), bisphenol S-(BPS-), and tetramethyl bisphenol A-(TM
Effects of the t-butyl substituent on the miscibility of polyarylates with polyamides
โ Scribed by B. D. Dean; J. E. Harris
- Publisher
- John Wiley and Sons
- Year
- 1992
- Tongue
- English
- Weight
- 278 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0021-8995
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## Abstract The effect on electrophilic activity of substituents located __para__, __ortho__, and __meta__ to the nitro group of nitrobenzenes was determined by using vicarious nucleophilic substitution of hydrogen (VNS) with the carbanion of chloromethyl phenyl sulfone (**1**) as the model process