Zobrazeno 1 - 10
of 52
pro vyhledávání: '"František Mikeš"'
Autor:
František Mikeš, Yoshiyuki Okamoto, Yasuhiro Koike, Timothy C. Merkel, Du Qiming, Zhang Hao, Zhenjie He, Kotaro Koike
Publikováno v:
Polymers for Advanced Technologies. 27:33-41
To address the need for perfluoro polymers with higher Tg, we have prepared and characterized various perfluorodioxolane monomers via direct fluorination of the hydrocarbon precursors. These monomers were readily polymerized in bulk or in solution in
Publikováno v:
Journal of Luminescence. 160:27-34
Polystyrene- block -poly(styrene- alt -maleic anhydride) was synthesized by nitroxide mediated radical polymerization and modified with 7-amino-4-methylquinolin-2(1H)-one ( I ) and methanol. The formed block polymer ligand contained a quinolinone flu
Publikováno v:
Journal of Membrane Science. 471:412-419
Perfluoropolymer membranes have found commercial use because of their unique gas separation properties and chemical resistance. To date, studies of gas transport in perfluoropolymers have been limited largely to variants of the commercially available
Publikováno v:
Journal of Fluorine Chemistry. 156:198-202
Amorphous perfluorinated polymers with outstanding unique properties have established a solid position in various fields, but less costly preparations are required for practical application. Here, copolymers of perfluoro(2-methylene-4,5-dimethyl-1,3-
Publikováno v:
Journal of Fluorine Chemistry. 147:40-48
Perfluorinated monomer (perfluoro-2-methylene-4,5-dimethyl-1,3-dioxolane), its precursor (perfluoro-2,4,5-trimethyl-1,3-dioxolane-2-carboxylic acid), as well as their hydrocarbon precursor (methyl 2,4,5-trimethyl-1,3-dioxolane-2-carboxylate), were pr
Publikováno v:
Journal of Polymer Science Part A: Polymer Chemistry. 50:4717-4720
Copolymerizations of hexafluoroisobutylene (HFIB) with vinyl pentafluorobenzoate (VPFB) and vinyl trifluoroacetate (VTFA) were carried out in bulk using perfluorodibenzoyl peroxide as the radical initiator. The copolymers obtained were characterized
Publikováno v:
Polymers for Advanced Technologies. 22:1272-1277
The low and the high molecular weight poly(perfluoro-2-methylene-1,3-dioxolane)s were prepared using perfluorobenzoyl peroxide as a free radical initiator. Both polymers obtained were semicrystalline and insoluble in organic solvents. The glass trans
Publikováno v:
Journal of Polymer Science Part A: Polymer Chemistry. 47:3352-3361
As a novel material of low loss and high thermal stability, a graded index plastic optical fiber (GI POF) comprised of a copolymer of methyl α-chloro acrylate (MCA) and 2,2,2-trichloroethyl methacrylate (TCEMA) was prepared and the thermal, mechanic
Publikováno v:
Polymers for Advanced Technologies. 19:516-520
Graded index plastic optical fibers (GI POF) based on the copolymer of 2,3,5,6-tetrafluorophenyl methacrylate (TFPMA) and methyl methacrylate (MMA) were prepared. The copolymers of 10 wt% and 20 wt% of TFPMA with MMA were prepared in bulk using di-te
Publikováno v:
Journal of Fluorine Chemistry. 128:202-206
Perfluoro-2-methylene-1,3-dioxolane (III) was synthesized and polymerized with an initiator, perfluoro dibenzoyl peroxide, and a white solid product III-P was quantitatively isolated. The polymer was insoluble in organic solvents including fluorinate