Zobrazeno 1 - 10
of 20
pro vyhledávání: '"E. W. Sheppard"'
Autor:
M. E. Leonowicz, A. S. Chu, S. B. McCullen, E. W. Sheppard, Charles T. Kresge, James C. Vartuli, I. D. Johnson
Publikováno v:
Chemistry of Materials. 6:2070-2077
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d3a7c04aae83cc3343b453b31f09c5a
https://doi.org/10.1021/cm00047a029
https://doi.org/10.1021/cm00047a029
Publikováno v:
Journal of Catalysis. 139:19-23
A new physisorption device collects accurate isotherm data at low pressures and low adsorptions. Thus, physisorption isotherms of microporous materials can he determined in fine detail in the region where the first sorbing atoms enter the unit cell o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a56eb3f41c122e4f03b5253a88ea2a4
https://doi.org/10.1006/jcat.1993.1002
https://doi.org/10.1006/jcat.1993.1002
Publikováno v:
Review of Scientific Instruments. 62:2801-2809
A physisorption apparatus with very high sensitivity has been constructed. It is capable of accurately measuring adsorption and desorption isotherms of gases on solids in the pressure range of 10−5–1000 Torr. This is particularly useful for inves
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e88538bba21589b7ba571fa7d5fb44c1
https://doi.org/10.1063/1.1142216
https://doi.org/10.1063/1.1142216
Autor:
Charles T. Kresge, J.D. Lutner, James C. Vartuli, J.S. Beck, Kirk D. Schmitt, E. W. Sheppard, S.B. McCullen, W.J. Roth, M. E. Leonowicz
The use of cationic surfactants as structure directing agents has resulted in the discovery of M41S, the first, ordered mesoporous molecular sieves. Herein we describe the ability of the surfactant molecules to interact with silicate counterions resu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92caf10338cfb29899f415a4739e13ce
https://doi.org/10.1016/b978-012508460-4/50002-4
https://doi.org/10.1016/b978-012508460-4/50002-4
Autor:
M. E. Leonowicz, J.S. Beck, S.B. McCullen, J. L. Schlenker, S.D. Hellring, Kirk D. Schmitt, D.H. Olson, E. W. Sheppard, C.T. Kresge, James C. Vartuli, W.J. Roth
1. Summary The influence of surfactant/silica molar ratio(Sur/Si) in M41S syntheses was studied in the simple synthesis system consisting of tetraethylorthosilicate(TEOS), water, and the cetyltrimethylammonium(CTMA) cation at 100°C. As the Sur/Si in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b85a09030ea20801f4a930ea4b6ed81
https://doi.org/10.1016/s0167-2991(08)64096-3
https://doi.org/10.1016/s0167-2991(08)64096-3
Autor:
Catherine S. Hsia Chen, E. W. Sheppard
Publikováno v:
Polymer Engineering and Science. 20:512-516
Xanthan gum, the extracellular polysacchuride produced by the microorganism Xanthomonas campestris has unique rheological properties and as a result found many industrial uses. The primary structure o xanthan consists of a cellulose backbone substitu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74b6a7e3a1ce821db534f6b9dfbf5f8b
https://doi.org/10.1002/pen.760200712
https://doi.org/10.1002/pen.760200712
Autor:
Catherine S. Hsia Chen, E. W. Sheppard
Publikováno v:
Journal of Macromolecular Science: Part A - Chemistry. 13:239-259
Xanthomonas campestris polysaccharide in the solid state is stable to 225°C in air and 250°C in inert atmosphere. In solution, even at moderate temperatures, the polymer undergoes hydrolytic degradation via the glycosidic linkages, and occurrence o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51ba1928c1730ae4473f54fd00922c49
https://doi.org/10.1080/00222337908066600
https://doi.org/10.1080/00222337908066600
Autor:
E. W. Sheppard
Publikováno v:
Royal United Services Institution. Journal. 102:61-65
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::824b369b6aa143e138fb205be2baab88
https://doi.org/10.1080/03071845709423351
https://doi.org/10.1080/03071845709423351
Autor:
E. W. Sheppard
Publikováno v:
Royal United Services Institution. Journal. 83:291-298
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e53297ce44f0bca59d6f536eaadbdd98
https://doi.org/10.1080/03071843809422041
https://doi.org/10.1080/03071843809422041
Autor:
E. W. Sheppard
Publikováno v:
Royal United Services Institution. Journal. 67:410-420
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f6a3762140bd8387451d94cfb76619d
https://doi.org/10.1080/03071842209434658
https://doi.org/10.1080/03071842209434658