Zobrazeno 1 - 10
of 401
pro vyhledávání: '"O. Nuyken"'
Autor:
J. Wehr, O. Nuyken, T. Hack, Alexandre C. Bastos, Mário G.S. Ferreira, Mikhail L. Zheludkevich, D. Raps
Publikováno v:
Corrosion Science. 51:1012-1021
Use of organic–inorganic hybrid sol–gel thin films is recently reported among the most promising approaches for the replacement of chromate based pre-treatment methods for high strength structural aluminium parts. To be applied in the aerospace i
Publikováno v:
Scopus-Elsevier
The ablation characteristics of various polymers were studied at low and high fluences. The polymers can be divided into three groups, i.e., polymers containing triazene and ester groups, the same polymers without the triazene group, and polyimide as
Publikováno v:
The Journal of Physical Chemistry A. 103:4855-4860
The photochemical decomposition of substituted 1,5-diaryl-3-alkyl-pentazadiene monomers and polymers induced by UV irradiation with a pulsed excimer laser was monitored by UV-vis spectroscopy. The net photochemical reaction proceeds in an overall one
This volume Macromolecular Engineering: Recent Advances has been developed based on the 1 st International Conference on'Advanced Polymers Via Macromolecular Engineering'(APME'95), June 24-29, 1995 at the Vassar College campus, Poughkeepsie, New York
Publikováno v:
Acta Polymerica. 49:427-432
We report on excimer laser polymer ablation experiments on polymers with triazene groups (Ph-N=N-NR 2 ) as well as their photolytical behavior. Two polyesters incorporating the photosensitive triazene group and their main chain (PEla,b) are compared
Publikováno v:
Journal of Macromolecular Science, Part A. 32:459-466
Block copolymers consisting of isobutyl vinylether (IBVE) and 2-(1-pyrrolidonyl)-ethylvinyl-ether (PEVE) were synthesized by the nucleophilic substitution of poly(2-chloroethylvinyl-ether-b-isobutylvinylether) (poly(CEVE-b-IBVE)) by the anion of pyrr
Publikováno v:
Journal of Macromolecular Science. Part A: Pure and Applied Chemistry, 32(1), 217-226
The cationic polymerization of 2-chloro ethyl vinylether (CEVE) is initiated by 1-iodo-1-(2-methylpropyloxy)ethane/(n-Bu)4NClO4. The monomer is consumed following first order kinetics. Molar masses are controlled by the ratio [M]:[I]. A rather narrow
Publikováno v:
Journal of Macromolecular Science. Part A: Pure and Applied Chemistry, 32(1), 227-235
Blockcopolymers consisting of N-vinylcarbazole (NVC) and isobutylvinylether (IBVE) were synthesized by sequential monomer addition. It is essential to start the synthesis with the NVC-segment and to initiate the polymerization by 1-iodo-1-(2-methylpr
Publikováno v:
Applied Magnetic Resonance. 5:457-466
The UV irradiated triarylsulfonium salts decompose under formation of phenyl radicals. Using 5,5-dimethyl-1-pyrroline-N-oxide (DMPO) spin trap the formation and the decay of DMPO-Ph adduct was followed during the irradiation and after irradiation sto
Publikováno v:
Hyperfine Interactions. 80:1121-1126
We determined the199mHg nuclear quadrupole interaction (NQI) by time differential perturbed angular correlation in the following ferrocenethiol complexes with mercury: ferrocenethiol (vQ=1253(4) MHz, η=0); 1,1′-ferrocenedithiol (47%vQ=1555(8) MHz,