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  • 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.
11

Synthesis, degradation and practical applications of a glycerol/citric acid condensation polymer /

Trenkel-Amoroso, Jan. January 1900 (has links)
Thesis (M.S.)--Oregon State University, 2009. / Printout. Includes bibliographical references (leaves 53-54). Also available on the World Wide Web.
12

Determination and evaluation of electrical properties of metal-containing condensation polymers

Unknown Date (has links)
Doped electrically conductive polymers are one of the critical materials that have allowed the current technological revolution. Essentially all of today's applications of doped conductive polymers involve vinyl-related polymers. While the application of conductive polymers is rapidly increasing, there is need for additional materials with different electrical behaviors. The current focus is on studying condensation polymers that contain a metal atom and the possibility of undergoing entire chain delocalization of electrons. The different series of organometallic condensation polymers were synthesized by employing interfacial polycondensation technique and characterization of these products were carried out using standard techniques like light scattering photometer, fourier transform infrared spectroscopy (FTIR), matrix assisted laser desorption ionization time of flight mass spectroscopy (MALDI TOF MS) and nuclear magnetic resonance spectroscopy (NMR). The electrical measurements were carried out employing Genrad 1650-B impedance spectroscopy. Prior studies conducted in this area have led to the pathway of looking at two aspects; first, surveying 60 metal-containing polymers that can undergo entire chain delocalization studying the effect of different substituents on their electrical properties and secondly, doping selected candidates employing iodine. The products derived from 2-nitro-1,4-phenylenediamine and N-methyl-1,4- pheneylenediamines with titanocene dichloride exhibited about 10 3 to 10 5 fold magnitude increases in the electrical conductivity on doping with iodine, moving it near conductive region. This increase is dependent on the concentration of the iodine and is cyclic. The results support the starting premise that selected metal-containing condensation polymers can be doped to increase their electrical conductivity. / Further investigation is warranted to see if metal-containing condensation polymers can be important materials in the electronic industry. This research sets the stage for studying not only metal-containing polymeric materials but also to investigate the ability to increase the conductivity of other condensation polymers such as nylons and polyesters through doping. / by Amitabh J. Battin. / Thesis (Ph.D.)--Florida Atlantic University, 2009. / Includes bibliography. / Electronic reproduction. Boca Raton, Fla., 2009. Mode of access: World Wide Web.
13

Template-directed condensations between acyl units.

Sun, Sengen. Harrison, Paul. Unknown Date (has links)
Thesis (Ph.D.)--McMaster University (Canada), 1994. / Source: Dissertation Abstracts International, Volume: 56-08, Section: B, page: 4324. Adviser: P. Harrison.
14

The condensation of cyclohexene and succinic anhydride in the presence of aluminum chloride ...

Bernardi, Dominic Joseph, January 1941 (has links)
Thesis (Ph. D.)--University of Chicago, 1938. / Reproduced from type-written copy. "Private edition, distributed by the University of Chicago libraries, Chicago, Illinois." eContent provider-neutral record in process. Description based on print version record. Bibliographical foot-notes.
15

The condensation of 3-nitro-4-halogenophenylarsonic acids with aliphatic amino compounds and phenols,

Maclay, William Dayton, January 1931 (has links)
Thesis (PH. D.)--University of Nebraska, 1931. / eContent provider-neutral record in process. Description based on print version record. Bibliography: p. 24.
16

Formation and characterization of metal and metal oxide nanoparticles

Glaspell, Garry, January 1900 (has links)
Thesis (Ph. D.)--West Virginia University, 2004. / Title from document title page. Document formatted into pages; contains xiv, 138 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references.
17

The polymeric states and the structures of methylene-aniline and methylene-para-toluidine The condensation of aniline and acetaldehyde.

Miller, John George, January 1932 (has links)
Thesis (Ph. D.)--University of Pennsylvania, 1932. / "Reprinted from the Journal of the American chemical society, vol. 54, no. 9."
18

The condensation of cyclohexene and succinic anhydride in the presence of aluminum chloride ...

Bernardi, Dominic Joseph, January 1941 (has links)
Thesis (Ph. D.)--University of Chicago, 1938. / Reproduced from type-written copy. "Private edition, distributed by the University of Chicago libraries, Chicago, Illinois." eContent provider-neutral record in process. Description based on print version record. Bibliographical foot-notes.
19

The condensation of 3-nitro-4-halogenophenylarsonic acids with aliphatic amino compounds and phenols,

Maclay, William Dayton, January 1931 (has links)
Thesis (PH. D.)--University of Nebraska, 1931. / eContent provider-neutral record in process. Description based on print version record. Bibliography: p. 24.
20

Ultrasonic measurement of thin condensing fluid films

Shear, Michael A. January 2002 (has links)
Thesis (M.S.)--Worcester Polytechnic Institute. / Keywords: microgravity; condensation; ultrasound. Includes bibliographical references (p. 138).

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