Brief-Preparation of Polymers from Diisocyanates and Polyols
✍ Scribed by Heiss, H; Saunders, J; Morris, Marjorie; Davis, B; Hardy, Edgar
- Book ID
- 121852051
- Publisher
- American Chemical Society
- Year
- 1954
- Weight
- 412 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0019-7866
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract Novel regular‐network polyurethane films were prepared from polyols of phloroglucinol (1), 2,4,2′,4′‐tetrahydroxybenzophenone (2) or glycerol (3), and diisocyanates of hexamethylene diisocyanate (6), 4,4′‐diphenylmethane diisocyanate (4,4′‐methylenebis(1,4‐phenylene) diisocyante (5)) or
## 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 4,4′‐biphenylene diisocyanate, magnified image may be converted to
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