Zobrazeno 1 - 10 of 24 pro vyhledávání: '"Craig S. Willand"'
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Photopolymers for non-linear optics: Design and synthesis of a polymer containing styrene-terminated tolane chromophores and its stabilization in an oriented configuration by photocrosslinking
Autor: Adelheid Godt, Craig S. Willand, Jody E. Beecher, Jean M. J. Fréchet
Publikováno v: Macromolecular Chemistry and Physics. 196:133-147
A new photocrosslinkable polymer designed for application in second harmonic generation has been prepared and tested for frequency doubling of IR lasers. The polymer is based on a colorless polyurethane with pendant tolane nonlinear optical chromopho
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a05638ea80e1e9401480659fbee4c821
https://doi.org/10.1002/macp.1995.021960108
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3
Photo-crosslinking of a polyurethane with pendant methacryloyl-Terminated 4-Alkoxy-4'-sulfamoylstilbene NLO Chromophores
Autor: Jody E. Beecher, Jean M. J. Fréchet, Tony Durst, Craig S. Willand, Adelheid Godt
Publikováno v: Scopus-Elsevier
The photo-cross-linking of a polyurethane with pendant-oriented NLO chromophore terminated with methacryloyl groups has been achieved using free-radical photoinitiators. Due to the presence of trans-stilbene groups in the chromophore, the photo-cross
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac167db38ba6bc353f4895fceeef9494
https://doi.org/10.1021/ma00091a005
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7
New main chain nonlinear optical polymers with high glass transition temperatures
Autor: Craig S. Willand, Michael A. Mitchell, Hillary Hampsch, David J. Williams, H. K. Hall, James E. Mulvaney
Publikováno v: Polymer Bulletin. 28:381-388
Various 4-methoxy-4′-carbomethoxy-α-amino-α′-cyanostilbenes were prepared as mixtures of E and Z isomers, and polymerized via condensation polymerization using dibutyltin diacetate as catalyst. The resulting low molecular weight homopolymers sh
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::84dd8dacb292c27b4b2e702902bfc2bd
https://doi.org/10.1007/bf00297329
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8
Aggregation in hemicyanine dye Langmuir-Blodgett films: ultraviolet-visible absorption and second harmonic generation studies
Autor: Thomas L. Penner, Craig S. Willand, Michael A. Carpenter, David J. Williams, Shaul Mukamel
Publikováno v: The Journal of Physical Chemistry. 96:2801-2804
Absorption spectroscopy and second harmonic generation have been used to examine the effect of systematic dilution on the aggregation of a hemicyanine dye in Langmuir-Blcdgett films. As reported previously, the second-order nonlinear activity initial
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5e81f844aaf05c67717815b522a7e75b
https://doi.org/10.1021/j100186a005
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9
Linear polymers for nonlinear optics. 2. Synthesis and electrooptical properties of polymers bearing pendant chromophores with methylsulfonyl electron-acceptor groups
Autor: Michael Scozzafava, Jay S. Schildkraut, Craig S. Willand, Joseph F. Revelli, Douglas R. Robello, Phat T. Dao, Abraham Ulman, James Phelan
Publikováno v: Chemistry of Materials. 4:425-435
Several acrylic polymers bearing pendant stilbene or azobenzene chromophores containing 4’-dhkylamino eledron donors and 4-methylsulfonyl electron acceptors have been synthesized. These amorphous polymers exhibited good film-forming abilities, mode
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::16ae392b100e940ff975c758ae5602e0
https://doi.org/10.1021/cm00020a035
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