John D. Stenger‐Smith

Naval Air Warfare Center Weapons Division

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Geoffrey A. Lindsay

United States Department of the Navy

Peter Zarras

Naval Air Warfare Center Weapons Division

Andrew P. Chafin

Naval Air Warfare Center Weapons Division

Richard A. Hollins

Naval Air Warfare Center Weapons Division

Ronald A. Henry

Naval Air Warfare Center Weapons Division

L. H. Merwin

Naval Air Warfare Center Weapons Division

R. Y. Yee

Naval Air Warfare Center Weapons Division

Warren N. Herman

Physical Sciences (United States)

M. Joseph Roberts

Naval Air Warfare Center Weapons Division

Kenneth J. Wynne

Virginia BioTechnology Research Park

Cooperative Institutions

Naval Air Warfare Center Weapons Division

United States Department of the Navy

United States Navy

Naval Air Warfare Center Training Systems Division

Naval Air Systems Command

University of Florida

Max Planck Institute for Polymer Research

Edwards Air Force Base

Max Planck Society

University of Washington

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CCDC 1539275: Experimental Crystal Structure Determination

The Cambridge Structural Database (2017)

John D. Stenger‐Smith Indranil Chakraborty Simon Carrington Pradip K. Mascharak

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

10.5517/ccdc.csd.cc1nnr13

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Citations (0)

Nonlinear optical polymer with chromophoric main chain

Die Makromolekulare Chemie Rapid Communications (1990)

John D. Stenger‐Smith John W. Fischer Ronald A. Henry J M Hoover Geoffrey A. Lindsay

10.1002/marc.1990.030110401

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Citations (31)

Preparation, spectroscopic and cyclic voltammetric studies of poly(1,4-naphthalene vinylene) prepared from a cycloalkylene sulphonium salt precursor polymer

Polymer (1990)

John D. Stenger‐Smith Thomas Sauer Gerhard Wegner Robert W. Lenz

10.1016/0032-3861(90)90179-3

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Citations (12)

Laboratory and Field Studies of Poly(2,5-bis(N-methyl-N-hexylamino)phenylene vinylene) (BAM-PPV): A Potential Wash Primer Replacement for Army Military Vehicles

Coatings (2014)

Peter Zarras Christopher W. Miller Cindy Webber Nicole Anderson John D. Stenger‐Smith

In this study, an electroactive polymer (EAP), poly(2,5-bis(N-methyl-N- hexylamino)phenylene vinylene) (BAM-PPV), was tested as an alternative to current hexavalent chromium (Cr(VI))-based Army wash primers. BAM-PPV was tested in both laboratory and field studies to determine its adhesive and corrosion-inhibiting properties when applied to steel and aluminum alloys. The Army Research Laboratory (ARL) tests showed that BAM-PPV combined with an epoxy primer and the Army chemical agent-resistant coating (CARC) topcoat met Army performance requirements for military coatings. After successful laboratory testing, the BAM-PPV was then field tested for one year at the Aberdeen Test Center (ATC). This field testing showed that BAM-PPV incorporated into the Army military coating survived with no delamination of the coating and only minor corrosion on the chip sites.

Primer (cosmetics)

10.3390/coatings4030687

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Citations (6)

ChemInform Abstract: Synthesis and Initial Characterization of Poly(2‐(N,N‐dimethylamino)‐1, 4‐phenylenevinylene).

ChemInform (1995)

John D. Stenger‐Smith Andrew P. Chafin William P. Norris

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Characterization

10.1002/chin.199519085

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Processing, Adhesion and Corrosion-inhibiting Properties of Poly[2-methoxy-5-(2’-ethylhexyloxy)-1,4-phenylene vinylene], (MEH-PPV) on Aerospace Aluminum Alloys

Journal of Coating Science and Technology (2021)

Peter Zarras Diane Buhrmaster John D. Stenger‐Smith Cindy Webber Nicole Anderson

Researchers at the Naval Air Warfare Center Weapons Division (NAWCWD) and Wright-Patterson Air Force Base (WPAFB) investigated poly[2-methoxy-5-(2’-ethylhexyloxy)-1,4-phenylene vinylene], (MEH-PPV) for its potential corrosion-inhibition properties on aerospace aluminum alloy AA2024-T3. Solution processing of the polymer, as well as adhesion testing and accelerated weathering tests were performed on MEH-PPV full military aerospace coatings. Wet and dry tape adhesion testing, as well as pencil hardness, impact flexibility and pneumatic adhesion tensile test instrument (PATTI) testing were used to demonstrate the adhesion performance of MEH-PPV on aluminum substrates. The results showed that MEH-PPV had acceptable adhesion characteristics when compared to hexavalent chromium (Cr(VI)) based coatings in all of these tests. Accelerated weathering analysis was performed on MEH-PPV coatings to determine their corrosion protection and weathering resistance capabilities. These tests included neutral salt spray (NSS) exposure and xenon-arc lamp testing. The results showed that while MEH-PPV does not exhibit significant color change after 500 hours of xenon arc lamp exposure, the polymer has poor corrosion protection performance under aggressive salt environments.

10.6000/2369-3355.2015.02.01.4

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Extended accordion polymers for optical modulation

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE (1996)

Geoffrey A. Lindsay Andrew P. Chafin Richard A. Hollins L. H. Merwin John D. Stenger‐Smith

Progress on second-order nonlinear optical polymers for high speed optical signal modulation is reported. New accordion polymers containing head-to-head backbone chromophores extended with a styryl-thienyl-vinyl linkage are described. The maximum absorption of the electronic transition (ground state yields excited state) for these polymers occurs at a wavelength of 494 nm. A corona-poled film of the ortho-xylyl bridged accordion polymer has a resonance-enhanced second- order nonlinear optical coefficient of 120 pm/V measured at 1.06 microns, and a glass transition temperature of about 187 degree(s)C. Along with linear polymer, polar cyclic dimers were formed during the polymerization. An extraction process was developed to remove the cyclic dimers from the polymer.

Chromophore

Modulation (music)

10.1117/12.256186

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Synthesis and Characterization of bis (Tetrahydrofurfuryl) Ether

ChemistryOpen (2016)

John D. Stenger‐Smith Lawrence C. Baldwin Andrew P. Chafin Paul A. Goodman

Invited for this month's cover are researchers from the Naval Air Warfare Center Weapons Division (USA). The cover picture shows the elusive symmetric molecule bis(tetrahydrofurfuryl) ether (BTHFE) in the making. For more details, read the full text of the Communication at 10.1002/open.201600013.

Characterization

10.1002/open.201600076

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Intrinsically electrically conducting polymers. Synthesis, characterization, and their applications

Progress in Polymer Science (1998)

John D. Stenger‐Smith

Characterization

Electrically conductive

10.1016/s0079-6700(97)00024-5

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Citations (269)

A new radical cation salt: Electrocrystallization of trans‐1,2‐bis(2‐naphthyl)ethene and model character of the resulting salt for conducting arylenevinylene polymers

Die Makromolekulare Chemie (1992)

John D. Stenger‐Smith Robert W. Lenz Volker Enkelmann Gerhard Wegner

Abstract A single‐crystal radical cation salt was obtained by anodic oxidation of trans ‐1,2‐bis‐(2‐naphthyl)ethene (1,2‐DNE) with SbF − 6 as the counter‐ion. The crystal structure of (1,2‐DNE)SbF 6 was solved and found to be similar to the radical cation salts of unsubstituted naphthalene. The crystal structure is disordered, i.e. two orientations of the 1,2‐DNE molecules are statistically occupied. The molecular overlap, resulting from these two orientations, models the structure of the salt of poly(2,6‐naphthylenevinylene). In contrast to most other radical cation salts which are one‐dimensional conductors, a conduction mechanism of higher dimensionality is predicted on the basis of the crystal structure of (1,2‐DNE)SbF 6 . The identical type of disorder is also present in the crystal structure of trans ‐1,2‐bis(1‐naphthyl)ethene.

Radical ion

Crystal (programming language)

10.1002/macp.1992.021930302

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Citations (13)