Zobrazeno 1 - 10
of 90
pro vyhledávání: '"Mary C. Wintersgill"'
Autor:
John T. Bendler, C.A. Edmondson, Mary C. Wintersgill, David A. Boyles, John J. Fontanella, Tsvetanka Filipova, Mark A. Westgate
Publikováno v:
Macromolecules. 46:4024-4033
The relative permittivity and dielectric strength have been determined for a bisphenol A polycarbonate (BPA-PC), in which a cyanoethyl group has been substituted for one of the geminal dimethyl groups. The new material (CN-PC) has a glass transition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3cffaa684f109cf8373161af01cdc07b
https://doi.org/10.1021/ma4002269
https://doi.org/10.1021/ma4002269
Autor:
Tsvetanka Filipova, David A. Boyles, John T. Bendler, C.A. Edmondson, Mary C. Wintersgill, John J. Fontanella
Publikováno v:
European Polymer Journal. 48:830-840
The relative permittivity, loss and dielectric strength have been measured for a polycarbonate-based material, tetraaryl bisphenol A polycarbonate, that has been fluorine substituted (DiF p-TABPA-PC). The new material has a glass transition temperatu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7209e0c25e1a8cb9e2cce59c8028d07a
https://doi.org/10.1016/j.eurpolymj.2012.02.001
https://doi.org/10.1016/j.eurpolymj.2012.02.001
Autor:
John J. Fontanella, Maria J. Schroeder, Mary C. Wintersgill, Joseph F. Lomax, Shady Helmi Awwad, Tsvetanka Filipova, C.A. Edmondson, David A. Boyles, John T. Bendler
Publikováno v:
Journal of Polymer Science Part B: Polymer Physics. 50:289-304
The relative permittivity, loss, and breakdown strength are reported for a commercial sample of bisphenol A-polycarbonate (comm-BPA-PC) and a purified sample of the same polymer (rp-BPA-PC) as well as for two new polycarbonates having low molecular c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35d40706bb67474050e2d7dde41e7fce
https://doi.org/10.1002/polb.23010
https://doi.org/10.1002/polb.23010
Publikováno v:
Electrochimica Acta. 57:160-164
Three features of the electrical conductivity of ion conducting polymers are described. First, it is shown how the ratio of the apparent isochoric activation energy to the isobaric activation enthalpy, EV*/H*, can be used to separate the contribution
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ca229b007adf3f8092a794e8394ce46
https://doi.org/10.1016/j.electacta.2011.07.010
https://doi.org/10.1016/j.electacta.2011.07.010
Publikováno v:
Journal of Non-Crystalline Solids. 357:404-410
Four topics are treated within the framework of the defect diffusion model (DDM). First, it is shown how the relationship between E V */ H* (ratio of the apparent isochoric activation energy to the isobaric activation enthalpy) and monomer volume for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::daaf030fed2b964a83d119fb92b0e577
https://doi.org/10.1016/j.jnoncrysol.2010.07.031
https://doi.org/10.1016/j.jnoncrysol.2010.07.031
Publikováno v:
Journal of Non-Crystalline Solids. 356:547-552
The ratio of the apparent isochoric activation energy to the isobaric activation enthalpy, E * V /H * or E V /E p , is treated within the framework of the defect diffusion model (DDM). This ratio is a quantitative measure of the relative sensitivity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d86239365f73fbe5179b19db5aa0898
https://doi.org/10.1016/j.jnoncrysol.2009.03.012
https://doi.org/10.1016/j.jnoncrysol.2009.03.012
Publikováno v:
Journal of Computational and Theoretical Nanoscience. 6:1494-1498
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27afbfcbc9b36bfddbb8c2c10c715d2c
https://doi.org/10.1166/jctn.2009.1200
https://doi.org/10.1166/jctn.2009.1200
Publikováno v:
Electrochimica Acta. 49:5249-5252
New aspects of the defect diffusion model (DDM) are presented. First, it is shown that if the correlation volume exhibits two dimensional scaling, e.g. grows in two dimensions more rapidly than in a third orthogonal direction, the standard Vogel rela
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3269571ee29fa9beddfce6f225207de
https://doi.org/10.1016/j.electacta.2004.06.033
https://doi.org/10.1016/j.electacta.2004.06.033
Publikováno v:
Electrochimica Acta. 48:2267-2272
Pressure–temperature–volume ( PVT ) data have been obtained for poly(propylene glycol) of molecular weight 1025 containing LiCF 3 SO 3 in the mole ratio 20:1. The PVT data were used to calculate the specific volumes, V / V P =0, T =296 K , associ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a77cdfe62c760fe9b87532247c81dbe9
https://doi.org/10.1016/s0013-4686(03)00213-5
https://doi.org/10.1016/s0013-4686(03)00213-5
Autor:
John J. Fontanella, Mary C. Wintersgill, C.A. Edmondson, John T. Bendler, Michael F. Shlesinger
Publikováno v:
Solid State Ionics. :337-342
A theory of the ionic conductivity in polymer electrolytes based on defect diffusion is evaluated using previously published data. Those data include the pressure and temperature variation of the electrical conductivity for poly(dimethylsiloxane-ethy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::708303d06f6eb9997e9a1f192f802b71
https://doi.org/10.1016/s0167-2738(02)00531-3
https://doi.org/10.1016/s0167-2738(02)00531-3