- About
-
The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
Search results
Showing 371 to 380 of 100066 (0.114 seconds)| 371 |
Impact sensitivity of primer explosives.Rhodes, Randolph L. January 1959 (has links)
No description available.
|
| 372 |
An investigation of creep in irradiated polyethylene plastic.Powell, John J. January 1959 (has links)
No description available.
|
| 373 |
A spectrophotometric study of some cobaltous fatty acid salts and complexes.McArthur, John C. January 1958 (has links)
No description available.
|
| 374 |
Vapor pressures of organic explosive compounds by an effusion method.Kirschke, Ernest J. January 1959 (has links)
No description available.
|
| 375 |
Synthesis of polybenzimidazoles from monomers containing flexible linkagesAzmus, Dora J. Taylor. January 1992 (has links)
CIVINS / Polybenzimidazoles were synthesized from 3, 3', 4, 4'- tetraminobiphenyl (diaminobenzidine, or DAB) with orthoesters, carboxylic acid derivatives (an ester and an acid) and with m-benzenedialdehyde. The products were of low molecular weight, as evidenced by low inherent viscosity, except in the case of the dialdehyde plus DAB. The product of that system had inherent viscosities in the range of 0.7 dL/g, and formed strong, flexible films. Based on these results, a dialdehyde monomer was made from naphthalene disulfonyl dihalides and p-hydroxybenzaldehyde. In addition to the aldehyde end groups, this monomer contained internal sulfonate linkages, which were intended to increase the flexibility of the target polybenzimidazole which resulted when it was condensed with DAB. These polymerizations yielded poor poly-benzimidazoles, probably due to lack of purity of the new dialdehyde monomer. Another type of monomer was also produced by condensing DAB with p-hydroxybenzaldehyde. The resultant bibenzimidazole unit with two phenolic end groups shows promise for use in nucleophilic aromatic substitution polymerizations.
|
| 376 |
The chemistry and use of pyrroline ring systems in the synthesis of natural productsPersichini, Phillip John 30 March 2010 (has links)
Master of Science
|
| 377 |
Controlled patterning of self-assembled monolayer filmsSporakowski, Laura 17 March 2010 (has links)
Master of Science
|
| 378 |
Some factors affecting performance in general chemistrySrinivasan, Gita 27 April 2010 (has links)
Master of Science
|
| 379 |
The reaction of monochloromethyl ether with organometallic compoundsTang, Philip Jen-chien 10 July 2010 (has links)
1. The reactions of monochlormethyl ether with the magnesium cadmium and zinc derivatives of normal propyl and isopropyl halides were investigated.
2. In both the normal propyl and iso-propyl aeries, the yields of the expected condensation products RCH₂OCH₃ appeared in the order RMgX>R₂Zn>R₂Cd.
3. The primary organometallic compounds reacted with monochlormethyl ether in higher yields than did the corresponding secondary compounds.
4. A new method was developed for preparing a zinc-copper couple by heating a mixture of zinc dust and powdered cupric citrate under an atmosphere of nitrogen.
5. This method gave a couple superior in laboratory use to the zinc-copper couples how generally employed. / Master of Science
|
| 380 |
Study of a synthetic insulating material from lime and viscoseRadspinner, John A. January 1938 (has links)
M.S.
|
Page generated in 0.1176 seconds