Zobrazeno 1 - 10
of 290
pro vyhledávání: '"W. Oppermann"'
Publikováno v:
Polymer. 42:8753-8757
The rheological properties of poly(trimethylene naphthalene-2,6-dicarboxylate) (PTN) were studied using a dynamic stress rheometer with oscillatory parallel plates. The influence of temperature and molecular weight on the storage modulus, loss modulu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c5a425d27bbd8a1ead380307be1e39c
https://doi.org/10.1016/s0032-3861(01)00448-7
https://doi.org/10.1016/s0032-3861(01)00448-7
Publikováno v:
Berichte der Bunsengesellschaft für physikalische Chemie. 102:1719-1723
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d7f23a09a7153345f900f1b4372c04c
https://doi.org/10.1002/bbpc.19981021140
https://doi.org/10.1002/bbpc.19981021140
Publikováno v:
Nuclear Engineering and Design. 174:287-292
After a total monitored operational timescale of almost five years on long-term installations, both in the laboratory and in four nuclear power plants, evidence can be put forward that the DC-potential drop method is now, at its current stage of deve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::591029dd2cf54cc1c96c3f844ca95008
https://doi.org/10.1016/s0029-5493(97)00127-1
https://doi.org/10.1016/s0029-5493(97)00127-1
Publikováno v:
Angewandte Makromolekulare Chemie. 230:179-187
Poly(trimethylene terephthalate) was synthesized on a semi-technical scale following the trans-esterification route. Ester exchange as well as polycondensation were catalyzed by titanium tetrabutylate. The polymer formed shows a remarkable degree of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59a132b87a5b509da864d942ef3f7b67
https://doi.org/10.1002/apmc.1995.052300113
https://doi.org/10.1002/apmc.1995.052300113
Publikováno v:
Advances in Polymer Science ISBN: 9783540005568
The present article addresses the dilute solution behavior of two different polyelectrolyte systems: Aqueous solutions of quaternized poly(2-vinylpyridines) and of polyacrylic acids. Firstly, it is demonstrated that the dimensions of the chains for a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e73ac3d2b9946962bdc24f1f4172cee5
https://doi.org/10.1007/b11348
https://doi.org/10.1007/b11348
Autor:
W. Oppermann, H.P. Keller
Publikováno v:
Nuclear Engineering and Design. 144:171-175
In the developed form described the direct current potential drop method is a reliable and relatively accurate procedure for the measuring and surveillance of surface cracks in metallic materials. There are also significant possibilities in practice
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8199dae4377e06d53c0d0f02dbc35e1
https://doi.org/10.1016/0029-5493(93)90018-5
https://doi.org/10.1016/0029-5493(93)90018-5
Publikováno v:
Applied optics. 31(36)
Planar laser-induced predissociative fluorescence is applied to image state-specific densities of OH and hot O(2) inside an internal-combustion car engine. Improved instrumentation is described. It includes better imaging optics and a spectrometer th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::435791363f987ebffda5142ffec1f8be
https://pubmed.ncbi.nlm.nih.gov/20802649
https://pubmed.ncbi.nlm.nih.gov/20802649
Publikováno v:
ChemInform. 27
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9268309d5638636bb283b5c10e578278
https://doi.org/10.1002/chin.199638246
https://doi.org/10.1002/chin.199638246
Autor:
Th. Schulz, W. Oppermann
Publikováno v:
Makromolekulare Chemie. Macromolecular Symposia. 39:293-299
Oppositely charged polyelectrolytes interact in solution, forming polyelectrolyte complexes, which often appear as gel-like precipitates. This kind of complex formation was studied by means of calorimetric and rheological measurements. The enthalpy e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2062593afcbc49e793c220ab705f53c7
https://doi.org/10.1002/masy.19900390125
https://doi.org/10.1002/masy.19900390125
Autor:
W. Oppermann, N. Rennar
Publikováno v:
Permanent and Transient Networks ISBN: 9783798507258
Elasticity measurements performed on well-defined poly(dimethylsiloxane) networks (PDMS) reveal that there is a direct proportionality between the small-strain modulus, G, and the chemical network density, vch, only at high network densities, whereas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ad578e4cbbeb55ae9ad052994fe4ca9
https://doi.org/10.1007/bfb0109408
https://doi.org/10.1007/bfb0109408