• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 144
  • 108
  • 2
  • 2
  • 1
  • Tagged with
  • 378
  • 378
  • 206
  • 197
  • 168
  • 73
  • 72
  • 65
  • 51
  • 42
  • 39
  • 33
  • 25
  • 22
  • 22
  • 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

Free radical telomerisation reactions

Euapermkiati, Anucha January 1990 (has links)
No description available.
12

The Promotion of Poly(Methyl Methacrylate) Depolymerization by Metal-Based Initiators

Macko, Jason andrew 01 January 1997 (has links)
No description available.
13

The synthesis, characterization, and molecular modeling of cyclic arylene ether oligomers

Ahmed, Sheeba 01 January 1997 (has links)
Cyclophanes are a family of bridged cyclic aromatic compounds that have found extensive applications in host-guest chemistry, molecular recognition, biomimetics and most recently as precursors in ring-opening polymerizations.;This research presents the synthesis of several novel cyclic arylene ether oligomers, based on 1,3-bis(4-fluorobenzoyl) benzene and 3,3{dollar}\sp\prime{dollar}-methylene diphenol and 3,3{dollar}\sp\prime{dollar}-(ethylene dioxy) diphenol, and their characterization by LC-MS/MS, 1-D {dollar}\sp1{dollar}H-NMR and x-ray crystallography. Electrospray ionization (ES) along with MS/MS was used to characterize cyclic oligomers of molecular weight up to 1600 Da. The thermal properties of these cyclic oligomers were studied by differential scanning calorimetery (DSC) and thermal gravimetric analysis (TGA).;These cyclic oligomers were synthesized in high yield by regulating the reaction time, concentration, temperature and solvent systems. The relevance of reaction conditions was investigated by selected reaction monitoring (SRM).;Molecular dynamics and potential energy calculations were also carried out to understand the molecular characteristics of the bisphenols that lead to the formation of these cyclic species. Furthermore, the molecular modeling studies assisted in predicting the conformations of the small macrocyclic rings. The predicted structures indicted the cavity size and the relative orientation of the oxygen atoms.
14

Dielectric Sensor In-Situ Control of the RTM Composite Fabrication Process

Williamson, Alex Stewart 01 January 1990 (has links)
No description available.
15

Characterization of Epoxy Resins for use in the Resin Transfer Molding Process

Short, Christina Kaye 01 January 1993 (has links)
No description available.
16

Cross-Linking Additives as Smoke Suppressants for Poly(Vinyl Chloride)

Terranova, Steven Alfred 01 January 1993 (has links)
No description available.
17

Characterization and Modeling of Amino Epoxide Resins

Argiriadi, Maria Anastasia 01 January 1994 (has links)
No description available.
18

Characterization of PR500 for Use in Resin Transfer Molding

Barksdale, Rhonda Michelle 01 January 1995 (has links)
No description available.
19

Low-Valent Metal Complexes as Reductive Coupling Agents for Smoke Suppression in Poly(Vinyl Chloride)

Kourtesis, Panagiotis Ioannou 01 January 1996 (has links)
No description available.
20

Characterization of Epoxy-Amine Systems and Nylon-11 and PVDF Degradation

Mahler, Wendy Raquel 01 January 1997 (has links)
No description available.

Page generated in 0.0441 seconds