Zobrazeno 1 - 10
of 76
pro vyhledávání: '"David L. Vanderhart"'
Autor:
Ryan C. Nieuwendaal, David L. VanderHart, David S. Germack, Michael F. Toney, Dean M. DeLongchamp, Calvin K. Chan, Hyun Wook Ro, David J. Gundlach, R. Joseph Kline, Amit Agrawal
Publikováno v:
Advanced Functional Materials. 22:1255-1266
The application of 1H spin diffusion nuclear magnetic resonance (NMR) is expanded to polymer-fullerene blends for bulk heterojunction (BHJ) organic photovoltaics (OPV) by developing a new experimental methodology for measuring the thin films used in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4cd0e68eaf900c9fc18a595cf7f29a6
https://doi.org/10.1002/adfm.201102138
https://doi.org/10.1002/adfm.201102138
Autor:
Dean M. DeLongchamp, Chad R. Snyder, Eric K. Lin, Ryan C. Nieuwendaal, David L. VanderHart, R. Joseph Kline
Publikováno v:
Chemistry of Materials. 22:2930-2936
We demonstrate that 1H spin diffusion NMR is a valuable method to estimate the domain size distribution in bulk heterojunction (BHJ) active layers composed of poly-3-hexylthiophene (P3HT) and phenyl-C61-butyric acid methyl ester (PCBM). Bulk samples
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1e7ebf0aef3bd2c1b4c3746e01388cd
https://doi.org/10.1021/cm100237m
https://doi.org/10.1021/cm100237m
Autor:
Vivek M. Prabhu, A. De Silva, Charles M. Guttman, Christopher K. Ober, Kathleen M. Flynn, David L. VanderHart, Nelson Felix, William E. Wallace
Publikováno v:
Rapid Communications in Mass Spectrometry. 23:1957-1962
The polydispersity in the degree of functionalization for two calix[4]resorcinarenes was determined by measuring quantitatively their molecular mass distribution with matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. A mat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::808248d6a467aecc2ff2961170853972
https://doi.org/10.1002/rcm.4099
https://doi.org/10.1002/rcm.4099
Autor:
William E. Wallace, Kathleen M. Flynn, B M. Fanconi, Charles M. Guttman, David L. VanderHart, Stephanie J. Wetzel
Publikováno v:
Analytical Chemistry. 77:4539-4548
A matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) interlaboratory comparison was conducted on mixtures of synthetic polymers having the same repeat unit and closely matching molecular mass distributions but
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5aa8e068e430fc25e905ba8254f96a1e
https://doi.org/10.1021/ac050298h
https://doi.org/10.1021/ac050298h
Autor:
Serge Bourbigot, Donald R Paul, Séverine Bellayer, Holly A. Stretz, Jeffrey W. Gilman, David L. VanderHart
Publikováno v:
Polymer. 45:7627-7638
This work investigates the melt-processing of styrene–acrylonitrile copolymer (SAN) with organo-modified montmorillonite (MMT) clays and the influence of the clay on mechanical properties and on fire performance of SAN. The nanodispersion of MMT is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a84908a7ced5294fe97002c67a5740a1
https://doi.org/10.1016/j.polymer.2004.08.057
https://doi.org/10.1016/j.polymer.2004.08.057
Publikováno v:
Chemistry of Materials. 16:3074-3084
The intimacy of component mixing in solvent-cast blends of poly(4-hydroxystyrene) (PHS) and a photoacid generator (PAG), di(tert-butylphenyl)iodonium perfluorooctanesulfonate (PFOS) were studied by solid-state proton NMR. These are simplified blends
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ee9e498c4f6d393f50c3544151393cb
https://doi.org/10.1021/cm030130h
https://doi.org/10.1021/cm030130h
Autor:
Rick D. Davis, Alexander B. Morgan, Serge Bourbigot, David L. VanderHart, Walid H. Awad, Charles A. Wilkie, Jeffrey W. Gilman
Publikováno v:
Journal of Polymer Science Part B: Polymer Physics. 41:3188-3213
Nanocomposites result from combinations of materials with vastly different properties in the nanometer scale. These materials exhibit many unique properties such as improved thermal stability, reduced flammability, and improved mechanical properties.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e55119bffc35c51b7f8531b08ba7a987
https://doi.org/10.1002/polb.10707
https://doi.org/10.1002/polb.10707
Publikováno v:
Biomaterials. 24:4181-4190
A series of blends of the biodegradable polymers poly(D,L-lactic acid) and poly( epsilon -caprolactone) were prepared by varying mass fraction across the range of compositions. Tensile testing was performed at room temperature using an extensometer a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee92eafd2cd1adf4dba7a0eadee6866f
https://doi.org/10.1016/s0142-9612(03)00314-4
https://doi.org/10.1016/s0142-9612(03)00314-4
Autor:
Chad R. Snyder, David L. VanderHart
Publikováno v:
Macromolecules. 36:4813-4826
A proton NMR method, based on simple Bloch-decay spectra in the solid state, is presented that enables one to follow, with excellent sensitivity, structural changes associated with aging in semicrystalline polymers whose Tg is well below the aging te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84dd389ce8f0667e83062280784555cc
https://doi.org/10.1021/ma030131v
https://doi.org/10.1021/ma030131v
Autor:
Joseph D. Harris, Richard E. Lyon, Serge Bourbigot, John M. Shields, Marc R. Nyden, Alexander B. Morgan, David L. VanderHart, Rick D. Davis, Takashi Kashiwagi, J.W. Gilman, Charles A. Wilkie, W . Demory
Publikováno v:
Journal of Materials Science. 38:4451-4460
A large number of parameters influence polymer-nanocomposite performance and developing a detailed understanding of these materials involves investigation of a large volume of the associated multi-dimensional property space. This multi-dimensional pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb04472579f8d5ea3369476bc55126dc
https://doi.org/10.1023/a:1027369115480
https://doi.org/10.1023/a:1027369115480