Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Kap-Soo Cheon"'
Autor:
Cecily Audes, Deyan Wang, George G. Barclay, Peter Trefonas, Kap-Soo Cheon, Stefan J. Caporale, Cheng Bai Xu
Publikováno v:
Journal of Photopolymer Science and Technology. 20:687-696
In immersion lithography the optical path between the lens element and the photoresist is currently water. Defects have been identified as a major roadblock for the introduction of immersion lithography to real device manufacturing. To address these
Autor:
Mark M. Green, Kap Soo Cheon
Publikováno v:
Journal of Labelled Compounds and Radiopharmaceuticals. 50:961-966
The signature characteristic of different kinds of polymers, synthetic and natural, is cooperativity arising from the recurring features common to all polymer structures. Cooperativity and amplification are simply different words expressing the same
Publikováno v:
Canadian Journal of Chemistry. 82:551-566
We report the synthesis of azo-functionalized Starburst polyamidoamine (PAMAM) dendrimers. The following three systems of azo-functionalized PAMAM dendrimers were prepared by different synthetic routes: (i) phenylazo derivatives; (ii) naphthalimide a
Publikováno v:
Dyes and Pigments. 53:3-14
A 13C NMR and UV–visible study of the tautomeric behaviour of azo-functionalized PAMAM (polyamidoamine) dendrimers and the corresponding model compounds in a variety of solvents is reported. Results of these studies indicate that the azo-functional
Publikováno v:
Accounts of Chemical Research. 34:672-680
This Account describes how stereochemical ideas focused on chirality have been directed widely across polymer science allowing experiments that could not be conducted on small molecules and leading to new insights and new kinds of materials. In one a
Publikováno v:
Angewandte Chemie International Edition. 39:1482-1485
Publikováno v:
Journal of the American Chemical Society. 121:1665-1673
In polyisocyanates composed only of randomly distributed (R) and (S) units, the chiral optical properties of the polymer are far out of proportion to the enantiomeric excess of the monomers. This highly disproportionate relationship, which arises fro
Autor:
Yoichi Fukunishi, Beth Munoz, Mark M. Green, Kap Soo Cheon, Salil K. Jha, Koichi Hatada, Koichi Ute
Publikováno v:
Macromolecules. 32:1304-1307
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1231-1240
A kinetic and product analysis study of the reactions of the three isomeric phenylazopyridines (PAPys) in aqueous sulfuric acid media (30–97 wt% H2SO4) is reported. The final products obtained from the reaction of 4-(phenylazo)pyridine (4-PAPy) are
Autor:
Erwin Buncel, Kap-Soo Cheon
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1241-1248
A kinetic and product analysis study of the reaction of 4-[N′-(4-hydroxyphenylhydrazino)]pyridine (1) and 4-(N′-phenylhydrazino)pyridine (2) in 10–55 wt% aqueous sulfuric acid media is reported. The final products obtained from 1 are the oxidat