Zobrazeno 1 - 10
of 41
pro vyhledávání: '"SooWhan Choi"'
Publikováno v:
Macromolecules. 42:3887-3891
We describe the synthesis of a combi-receptor via the click reaction of 6I-azido-6I-deoxycyclomaltoheptaose onto (propargyl-O)6cucurbit[6]uril under microwave-assisted conditions. The process was investigated by 1H NMR, FT-IR spectroscopy, and MALDI-
Publikováno v:
Macromolecules. 41:9619-9623
Click reaction of propargyl methacrylate (1) with 6I-azido-6I-deoxycyclomaltoheptaose (2) was carried out to synthesize mono-(1H-1,2,3-triazol-4-yl)(methyl)2-methylacryl-β-cyclodextrin (3). The process was investigated by varying the reaction time,
Publikováno v:
Journal of Polymer Research. 16:389-394
Mono-(1 H-1, 2, 3-triazol-4-yl) (methyl) 2-methylacryl-β-cyclodextrin (CD) 3 is synthesized by microwave assisted `click´ reaction of propargyl (meth) acrylate and mono-(6-azido-6-deoxy)-β-CD using Cu (I) catalysis. Free radical copolymerizations
Publikováno v:
Journal of Inclusion Phenomena and Macrocyclic Chemistry. 62:197-202
We describe the synthesis of 1-mono-β-cyclodextrin-4-[4-(1-mono-β-cyclodextrin-1H-1,2,3-triazol-4-l)butyl]-1H-1,2,3-triazole (CD–CD) 3, 1-mono-β-cyclodextrin-4-[4-(1-adamantane-1H-1,2,3-triazol-4-yl)butyl]-1H-1,2,3-triazole (CD–Ad) 4, and 1-ad
Publikováno v:
Reactive and Functional Polymers. 66:149-156
Radical polymerization of cyclodextrin (CD) complexed diethyl fumarate (1) and diethyl maleate (2) was investigated using redox initiator in aqueous media at room temperature. Control experiments were carried out showing that 2 does not homopolymeriz
Autor:
SooWhan Choi, Helmut Ritter
Publikováno v:
Journal of Macromolecular Science, Part A. 42:321-325
For the first time, radical polymerization of t‐butyl methacrylate at 0°C in the presence of methylated β‐cyclodextrin in aqueous medium is carried out, leading to the unexpected formation of CD‐complexed physical poly(t‐BMA) gels.
Autor:
Helmut Ritter, SooWhan Choi
Publikováno v:
Macromolecular Rapid Communications. 25:716-719
The radical homo- and copolymerization of styrene (1) and diethyl fumarate (DEF, 2) in the presence of methylated β-cyclodextrin (β-CD) in water is described. It has been shown for the first time that homopolymerization of CD-complexed DEF and its
Publikováno v:
Macromolecules. 35:7161-7165
Autor:
Holger Kern, Jürgen Heinrich, Lutz Ehrhardt, Gerhard Wenz, Alfred Blume, Patrick Garidel, Petra Mischnick, SooWhan Choi
Publikováno v:
Carbohydrate Research. 326:67-79
An improved heterogeneous procedure has been found for the regioselective introduction of trityl and 4-methoxytrityl groups at the primary positions of cellulose. The 6- O -tritylcelluloses produced were completely methylated by MeI–NaOH in Me 2 SO
Autor:
Gerhard Wenz, Michael Bruns, Thomas Schimmel, SooWhan Choi, Harald Beyer, Denise Freitas Siqueira Petri
Publikováno v:
Polymer. 40:1593-1601
A new water soluble cellulose derivative 6-O-(2,3-bis(thiosulfato)propyl-oxy-2-hydroxy-propyl)-cellulose (TSHP) was synthesized by addition of tetrathionate to 6-O-(allyl-oxy-2-hydroxy-propyl)-cellulose (AHP). On gold surfaces, TSHP forms dense monol