Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Reinaldo R. Vargas"'
Autor:
Alvaro Antonio Alencar de Queiroz, José A. da Rocha Filho, Erna E. Bach, Reinaldo R. Vargas, D. A. W. Soares
Publikováno v:
Journal of Applied Polymer Science. 92:1310-1318
Chitin hydrogels of poly(vinylpyrrolidone) (VP) were prepared by means of the hydrogen peroxide graft copolymerization process. The effect of the VP grafted chain on water diffusion through the biopolymer was studied. Fourier transform infrared spect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a07f4ca87ee6cf5aa06d92f81865bc5a
https://doi.org/10.1002/app.20114
https://doi.org/10.1002/app.20114
Autor:
Olga Z. Higa, Roberto Rodrigues Ribeiro, Alvaro Antonio Alencar de Queiroz, Reinaldo R. Vargas, Michele Vitolo
Publikováno v:
Journal of Applied Polymer Science. 84:767-777
A graft random copolymer of N-vinyl-2-pyrrolidone and N,N′-dimethylacrylamide onto polypropylene was synthesized using a simultaneous gamma radiation technique from a 60Co source, so that the hydrogel poly(propylene-g-vinylpyrrolidone-co-N,N′-dim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c297b5b0ae5d19b26550b7c4211cf261
https://doi.org/10.1002/app.10326
https://doi.org/10.1002/app.10326
Autor:
Francisco C. Biaggio, Blanka Wladislaw, Julio Zukerman-Schpector, Liliana Marzorati, Marcelo B. Bjorklund, Reinaldo R. Vargas
Publikováno v:
Tetrahedron. 55:12023-12030
The asymmetric induction in the sulfenylation of several β-keto sulfoxides under phase transfer catalytic conditions in the presence of the chiral catalyst N-benzylquininium chloride was investigated. It is concluded that the diastereoselectivity is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::392bbe954f941f90c1685dbd3b919a4e
https://doi.org/10.1016/s0040-4020(99)00705-x
https://doi.org/10.1016/s0040-4020(99)00705-x
Publikováno v:
Tetrahedron: Asymmetry. 10:3219-3227
The chloroperoxidase (CPO)-catalyzed oxidation of a series of β-carbonyl sulfides to sulfoxides has been studied at room temperature in aqueous citrate buffer. For dialkyl β-carbonyl sulfides, the products with methyl and ethyl substituents are obt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e27145750a8765099b64451a7aae8743
https://doi.org/10.1016/s0957-4166(99)00339-0
https://doi.org/10.1016/s0957-4166(99)00339-0
Autor:
Blanka Wlasdislaw, Liliana Marzorati, Alvaro Antonio Alencar de Queiroz, Etelvino J. H. Bechara, E. R. Barrak, Reinaldo R. Vargas, Olga Z. Higa
Publikováno v:
Radiation Physics and Chemistry. 55:345-352
The graft copolymer poly(propylene)-graft-poly(acrylic acid) (PP-G-AA) was prepared by radiation-induced graft copolymerization of acrylic acid onto polypropylene spheres and characterized by thermal analysis and scanning electron microscopy (SEM). M
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7554b625c196c401256cccd61fdbe8d
https://doi.org/10.1016/s0969-806x(98)00330-2
https://doi.org/10.1016/s0969-806x(98)00330-2
Autor:
Reinaldo R. Vargas, P. Di Mascio, Marisa Helena Gennari de Medeiros, A M P Pinto, Etelvino J. H. Bechara
Publikováno v:
Free Radical Research. 25:5-12
L-Lysine is shown to yield an adduct with the quinone methide intermediate formed during the horseradish peroxidase (HRP)-catalyzed aerobic oxidation of eugenol (4-allyl-2-methoxyphenol). Adduct formation is evidenced by (i) lysine quenching of the c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69fd0e039077bced5f9b6fa28ed39385
https://doi.org/10.3109/10715769609145651
https://doi.org/10.3109/10715769609145651
Publikováno v:
hfsg. 47:302-312
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f9316ceb2ae54292fd5246858da211e
https://doi.org/10.1515/hfsg.1993.47.4.302
https://doi.org/10.1515/hfsg.1993.47.4.302
Publikováno v:
ChemInform. 31
The chloroperoxidase (CPO)-catalyzed oxidation of a series of β-carbonyl sulfides to sulfoxides has been studied at room temperature in aqueous citrate buffer. For dialkyl β-carbonyl sulfides, the products with methyl and ethyl substituents are obt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb7a877327a869efb0b2be0ecc26e339
https://doi.org/10.1002/chin.200003037
https://doi.org/10.1002/chin.200003037
Publikováno v:
Tetrahedron. 48:7221-7228
The anodic oxidation in methanol of some lignin model compounds, the C17 – C18 compounds ((1) – (5), has been studied to ascertain factors influencing cleavage of Cα Cβ bonds cf. substitution. Cyclic voltammetric oxidation peak potentials w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::171e7732973f5bbb61cfb647389fd411
https://doi.org/10.1016/s0040-4020(01)88262-4
https://doi.org/10.1016/s0040-4020(01)88262-4
Publikováno v:
The Journal of Organic Chemistry. 56:7305-7313
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9e3e4bef292b3bae73488e9a9508309
https://doi.org/10.1021/jo00026a022
https://doi.org/10.1021/jo00026a022