## AbstracGPolycondensation of biphenols such as 2,2-di(4-hydroxyphenyl) propane, I-phenyl-l,l-di(C hydroxyphenyl) ethane, l,l-di(4-hydroxyphenyl) cyclohexane and dihydroxynaphthalenes with glyoxal resulted in a ladder type of polymers. The structures of the ladder polymers were elucidated by FTIR
Linear condensation polymers from phenolphthalein and related compounds
β Scribed by Morgan, P. W.
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1964
- Tongue
- English
- Weight
- 34 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0449-2951
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π SIMILAR VOLUMES
## Abstract Diisocyanates condense readily with the two active hydrogen atoms in dioximes to give high molecular weight linear condensation polymers. In several cases these polymers, such as the one from cyclohexanedione dioxime and 4,4β²βbiphenylene diisocyanate, magnified image may be converted to
## 147 e r y t h r o -3 -D i b e n z y l a m i n o -2 -h y d r o x y -3 -p h e n y C p (3h) 1,35 g (5 mmol) (3j), 2,5 g KzCOJ, 3,O g Benzylchlorid und 20 ml Toluol werden 3 h a m Ruck-flu5 gekocht. Aus dem Filtrat des erkalteten Ansatzes kristallisiert bei langerem Stehen 3h aus und wird aus Ethano
The versatility of the reaction of the isocyaiiate group with various active hydrogen compounds, and some polymers made by this type of reaction, have been discussed recently. Among the unusual active hydrogen compounds which have not been adequately investigated as polymer formers with diisocyanate