Synthesis, characterization, and propellant binder studies of new polyurethanes
โ Scribed by H. Kothandaraman; K. Venkatarao; B. Chithambara Thanoo; V. N. Krishnamoorthy
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 802 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
New segmented polyurethanes containing in the chain extender molecule (dihydroxyethyl-nhexadecylamine, DHHA) both a hydrophobic long alkyl group and a tertiary ammonium group (whose polarity was further increased by quaternization reaction), are described. In order to evaluate the influence of the c
A novel series of polyurethanes was prepared via step-growth solution polymerization, by reaction of arylidene monomers, e g 2,5 bis(4-hydroxybenzylidene)cyclopentanone (I), 2,5-divanillylidenecyclopentanone (II), 2,6-bis(4-hydroxybenzylidene)cyclohexanone (III), 2,6-divanillylidenecyclohexanone (IV
Hydroxyl terminated natural rubber (HTNR) was prepared by the depolymerization of masticated natural rubber in the presence of HZ02 in toluene. Probable mechanisms leading t~ the formation of side reaction products are proposed based on the analytical data. A comparative study of some formulation va