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Special Issue "Deuterated Molecules and Polymers for Neutron Studies"

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A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Organic Synthesis".

Deadline for manuscript submissions: closed (10 November 2014)

Special Issue Editors

Guest Editor
Dr. Peter V. Bonnesen (Website)

Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, TN 37831‐6494, USA
Interests: synthesis of molecules containing deuterium and other NMR‐active stable nuclei; synthesis of ligands for self‐assembled systems; monomer and polymer synthesis; Nuclear Magnetic Resonance for probing molecular dynamics and elucidating reaction mechanisms
Guest Editor
Dr. Kunlun Hong (Website)

Neutron Science Liaison Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, TN 37831‐6494, USA
Interests: synthesis and characterization of linear and branched polymers and copolymers with controlled nanostructures; polymeric self‐assembling; polyelectrolytes; stimuli‐responsive polymers; selectively‐deuterated monomers and polymers; effect of deuteration on the properties of soft‐matter; structures and dynamics elucidations of polymeric materials by scattering (X‐Ray, neutron, light)

Special Issue Information

Dear Colleagues,

Deuterium (2H or D), a stable isotope of hydrogen that possesses both a neutron and a proton, exhibits a distinctively different strength of interaction with neutrons than protium does. This difference can provide contrast in differential scattering of protium vs. deuterium in neutron scattering experiments, and accordingly, can provide information about structure and dynamics that would not be accessible by other techniques (such as X‐ray scattering). As more powerful neutron‐generating facilities have become available, interest in utilizing neutron scattering for structural characterization, which is important for the design of new materials, has increased. Consequently, there is a growing need for new deuterated materials, as well as for methodologies of selective deuteration that create, for example, well‐defined (partially or fully) deuterated molecules and polymers. Therefore, we and Molecules feel that the time is right for a Special Issue covering deuterated molecules and polymers.

This Special Issue of Molecules will consider contributions covering the synthesis and characterization of selectively or fully deuterated molecules of all kinds, including monomers, polymers/macromolecules, and surfactants, as broadly indicated by the keywords. Review articles by experts in the field are also welcome.

Dr. Peter V. Bonnesen
Dr. Kunlun Hong
Guest Editors

Submission

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. Papers will be published continuously (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are refereed through a peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Molecules is an international peer-reviewed Open Access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs).


Keywords

  • deuterium/deuteration
  • synthesis of deuterated monomers/polymers/macromolecules
  • kinetics/dynamics/structural analysis

Published Papers (2 papers)

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Research

Open AccessArticle Mild Conditions for Deuteration of Primary and Secondary Arylamines for the Synthesis of Deuterated Optoelectronic Organic Molecules
Molecules 2014, 19(11), 18604-18617; doi:10.3390/molecules191118604
Received: 5 September 2014 / Revised: 29 October 2014 / Accepted: 4 November 2014 / Published: 13 November 2014
Cited by 2 | PDF Full-text (261 KB) | HTML Full-text | XML Full-text | Supplementary Files
Abstract
Deuterated arylamines demonstrate great potential for use in optoelectronic devices, but their widespread utility requires a method for large-scale synthesis. The incorporation of these deuterated materials into optoelectronic devices also provides the opportunity for studies of the functioning device using neutron reflectometry [...] Read more.
Deuterated arylamines demonstrate great potential for use in optoelectronic devices, but their widespread utility requires a method for large-scale synthesis. The incorporation of these deuterated materials into optoelectronic devices also provides the opportunity for studies of the functioning device using neutron reflectometry based on the difference in the scattering length density between protonated and deuterated compounds. Here we report mild deuteration conditions utilising standard laboratory glassware for the deuteration of: diphenylamine, N-phenylnaphthylamine, N-phenyl-o-phenylenediamine and 1-naphthylamine (via H/D exchange in D2O at 80 °C, catalysed by Pt/C and Pd/C). These conditions were not successful in the deuteration of triphenylamine or N,N-dimethylaniline, suggesting that these mild conditions are not suitable for the deuteration of tertiary arylamines, but are likely to be applicable for the deuteration of other primary and secondary arylamines. The deuterated arylamines can then be used for synthesis of larger organic molecules or polymers with optoelectronic applications. Full article
(This article belongs to the Special Issue Deuterated Molecules and Polymers for Neutron Studies)
Figures

Open AccessArticle Ion Acceleration and D-D Nuclear Fusion in Laser-Generated Plasma from Advanced Deuterated Polyethylene
Molecules 2014, 19(10), 17052-17065; doi:10.3390/molecules191017052
Received: 17 July 2014 / Revised: 13 October 2014 / Accepted: 16 October 2014 / Published: 23 October 2014
Cited by 3 | PDF Full-text (1914 KB) | HTML Full-text | XML Full-text
Abstract
Deuterated polyethylene targets have been irradiated by means of a 1016 W/cm2 laser using 600 J pulse energy, 1315 nm wavelength, 300 ps pulse duration and 70 micron spot diameter. The plasma parameters were measured using on-line diagnostics based on [...] Read more.
Deuterated polyethylene targets have been irradiated by means of a 1016 W/cm2 laser using 600 J pulse energy, 1315 nm wavelength, 300 ps pulse duration and 70 micron spot diameter. The plasma parameters were measured using on-line diagnostics based on ion collectors, SiC detectors and plastic scintillators, all employed in time-of-flight configuration. In addition, a Thomson parabola spectrometer, an X-ray streak camera, and calibrated neutron dosimeter bubble detectors were employed. Characteristic protons and neutrons at maximum energies of 3.0 MeV and 2.45 MeV, respectively, were detected, confirming that energy spectra of reaction products coming from deuterium-deuterium nuclear fusion occur. In thick advanced targets a fusion rate of the order of 2 × 108 fusions per laser shot was calculated. Full article
(This article belongs to the Special Issue Deuterated Molecules and Polymers for Neutron Studies)

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