Zobrazeno 1 - 10
of 42
pro vyhledávání: '"H. Garth Spencer"'
Autor:
S. C. Honeycutt, H. Garth Spencer
Publikováno v:
Journal of Polymer Science: Polymer Symposia. 41:129-137
The sorption kinetics of H$sub 2$O and D$sub 2$O in copolymers of partially hydrolyzed poly(vinyl acetate) were studied and compared with the sorption kinetics of vinyl acetate--vinyl alcohol copolymers, and poly(vinyl alcohol). The special measureme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa82aed982a54c24839082e0cbcb4b8a
https://doi.org/10.1002/polc.5070410113
https://doi.org/10.1002/polc.5070410113
Publikováno v:
Journal of Polymer Science: Polymer Symposia. 44:141-145
The sorption of water vapor by poly (vinyl alcohol) films at moderate vapor activities was followed by mass regain and electrical conductance. A slow rearrangement of polymer structure in the swollen state is indicated by the observed sorption oversh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e461d3b3eb43deec454874e8126e47c3
https://doi.org/10.1002/polc.5070440116
https://doi.org/10.1002/polc.5070440116
Publikováno v:
Desalination. 129:237-245
Nanofiltration of a high-formula-weight dye, Cibacron F3G-A, FW=840, was investigated at low-to intermediate-crossflow velocity and pressure using a zirconium hydrous oxide-poly(acrylic acid) membrane. A sharp minimum in the rejection vs. pressure cu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57c7d82a4da735b13639e25c7341b133
https://doi.org/10.1016/s0011-9164(00)00064-3
https://doi.org/10.1016/s0011-9164(00)00064-3
Autor:
H. Garth Spencer, A. Corina Geiculescu
Publikováno v:
Journal of Sol-Gel Science and Technology. 17:25-35
Zirconia powders were prepared by forming gels by desiccation of aqueous precursor solutions of zirconium acetate containing nitric or sulfuric acid at pH 2.4 and 1.4 and pyrolyzing the gels to temperatures up to 825°C. The structure development in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0013b721ca922c79b761964340987db
https://doi.org/10.1023/a:1008700803565
https://doi.org/10.1023/a:1008700803565
Publikováno v:
Materials and Manufacturing Processes. 14:489-507
A coating on graphite is required to provide a wettable surface and prevent reaction between the graphite and the molten metal during the fabrication of high thermal conductivity metal matrix composites. An aqueous sol-gel procedure using zirconium a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::116383150f5dae17321a71f1d2f9866b
https://doi.org/10.1080/10426919908914845
https://doi.org/10.1080/10426919908914845
Autor:
H. Garth Spencer, A. Corina Geiculescu
Publikováno v:
Journal of Sol-Gel Science and Technology. 14:257-272
A precursor gel was prepared by desiccation of an aqueous solution of zirconium acetate and pyrolyzed to form crystalline powders in selected gas environments. Thermal analysis, X-ray powder diffraction, mass spectrometry and Fourier transform infrar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75036e3c870c09f3c51df1d83a8366e1
https://doi.org/10.1023/a:1008717512581
https://doi.org/10.1023/a:1008717512581
Autor:
A. Corina Geiculescu, H. Garth Spencer
Publikováno v:
Journal of Sol-Gel Science and Technology. 16:243-256
Crystalline zirconia has previously been formed by desiccation and pyrolysis of a pH 3.4 zirconium acetate precursor solution. In this study, amorphous gels were formed by desiccation of zirconium acetate precursor solutions at pH 0.9 to 3.4 obtained
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d75a1c3015db39ab7a6eabe755208cda
https://doi.org/10.1023/a:1008769204022
https://doi.org/10.1023/a:1008769204022
Autor:
Kuan-Ting Wu, H. Garth Spencer
Publikováno v:
Journal of Non-Crystalline Solids. 226:249-255
Acid catalyzed sol-forming reactions of titanium isopropoxide with water in isopropanol solutions were investigated by quasielastic light scattering (QELS) and viscosity measurements. Light scattering was used to determine the dependence of the inten
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63dd110af2269af659f25af47d294000
https://doi.org/10.1016/s0022-3093(98)00441-4
https://doi.org/10.1016/s0022-3093(98)00441-4
Autor:
Xingwu Wang, H. Garth Spencer
Publikováno v:
Polymer. 39:2759-2764
The effects of a simple salt (1:1 electrolyte, KCl) on the calcium alginate gel formation and the gel stability of alginates varying in molecular weight and mannuronate/guluronate (MG) ratio were investigated by an equilibrium dialysis technique. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25dce8eb5e1f6af4f1fd0777b142fde5
https://doi.org/10.1016/s0032-3861(97)00597-1
https://doi.org/10.1016/s0032-3861(97)00597-1
Autor:
Xingwu Wang, H. Garth Spencer
Publikováno v:
Journal of Applied Polymer Science. 67:513-519
Formed-in-place (FIP) ultrafiltration (UF) membranes were formed from dilute solutions of chitosans with different molecular weights in 1% acetic acid on a macroporous titanium dioxide substrate. The ultrafiltration properties were characterized by i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9b3c17a421ac5adfd3c959b5f7764fd
https://doi.org/10.1002/(sici)1097-4628(19980118)67:3<513::aid-app14>3.0.co
https://doi.org/10.1002/(sici)1097-4628(19980118)67:3<513::aid-app14>3.0.co