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Vinylbenzyl bromide

Poly (dimethyl siloxane) obtained by anionic ring-opening polymerization of hexamethylcyclotrisiloxane (D3) can also be end-capped with vinylbenzyl bromide or other electrophiles, such as p. (chlorodimethylsilyl)styrene80). [Pg.158]

Vinylbenzyl bromide, MA copolymerization, 371 Vinylbenzyl chloride, MA copolymerization, 371 Vinylbenzyl cinnamate, MA copolymerization, 660 2-Vinyl-bicyclo[2.2. Ijheptane MA copolymerization, 342 Q and e-values, 342 5-Vinyl-bicyclo[2.2.1]hept-2-ene, MA copolymerization, 361, 364, 586 2-Vinylbutadiene, polyester reactions, 507 Vinyl butyl sulfide, MA copolymerization, 660 yV-Vinyl-e-caprolactam... [Pg.869]

Recently, Asami et al. synthesized PMMA macromonomers by two more direct techniques. In the first technique, living PMMA was simply reacted with p-vinylbenzyl bromide in the presence of a catalyst (equation 15). Unfortunately, this method resulted in no more than 83% functionalization. One hundred percent functionalization was achieved using vinylphenylketene methyl trimethyl silyl acetal as the initiator (equation 16). [Pg.1077]

Vinyl acetate, 57,117 Vinylacetic acid, 56,49 ct-Vinylbenzyl alcohol, 56, 106 Vinyl bromide, 58,152, 155, 157 Vinyl chloride, 58,133 Vinylene carbonate, 57, 117 Vinylmagnesium halides, 59,92 2-Vinylpytidine, 58, 73 Vinyl sulfides, 59, 202... [Pg.123]

Vinvlbenzvl Bromide—Vinylbenzyl chloride (30 g 0.196 mol) and tetrabutylammonium bisulfate (2.2 g 0.007 mol) were added to a solution of sodium bromide (210 g 1.96 mol) in 500 mL of distilled water and stirred for 5.5 hr at 50°c. The mixture was cooled to room temperature and the aqueous phase was separated from the organic phase and washed with dichloromethane. The two organic phases were combined, dried over magnesium sulfate, stripped of solvent, and stirred at 50°C with additional tetrabutylammonium bisulfate (0.71 gj 0.002 mol) and sodium bromide (72.1 g 0.700 mol) in 70 mL of distilled water for 16 hr. The isolation process was repeated and distillation of the organic phase under reduced pressure (92°C/1.5 mm Hg) gave 25.5 g (66% of theory) of a pale yellow liquid. [Pg.190]

Investigation of thermodynamic behavior of monolayers formed from mixtures of bis[2-(n-hexadecanoyl)ethyl]methyl(4-vinylbenzyl) ammonium chloride (1) and dioctadecyl-dimethylammonium bromide (5) serves as the second example [116]. The determined surface-pressure/surface-area isotherms of mono-layers prepared from (1) and (5) and from their mixtures are given in Fig. 8. The isotherms showed the expected behavior following the liquid state there was a transition to the solid state in the region of 20-36 mNm 1. This transition was characterized by a pressure, and by a corresponding area, Aj. All isotherms intersected in the vicinity of 30 mNm-1 and, at surface-pressure/surface-area... [Pg.23]

Sharkey20 found that living poly(methyl methacrylate) reacts efficiently and without side reaction with p-vinylbenzyl iodide (or bromide) at low temperature yielding poly(methyl methacrylate) macromonomers bearing at the chain end a styryl group (poly(methyl methacrylate)macromonomer). [Pg.12]

PAA = poly (acrylic acid), PMAA = poly(methacrylic acid), PI A = poly(itaconic acid), PGA = poly(L-glutamic acid), QPVP = poly(N-ethyl-4-vinyl-pyridinium bromide), PLL = poly(L-lysine), PDMAEMA = poly(2-N,N-dimethylaminoethyl methacrylate), PVBMA = poly(4-vinylbenzyl-trimethylammonium chloride), 5,6-ionene, 2,5-ionene, 10,10-ionene, 2X and 3X (see text)... [Pg.25]

Styrene-type macromonomers were also prepared by reaction of living PtBuA and PMMA chains with p-vinylbenzyl chloride, iodide or bromide , 4-(chlorodimethyl-silyl)styrene and 4-(chlorodimethylsilyl)-a-methylstyrene , respectively. [Pg.859]

Stabilizers 2,4,4 -trichloro-2 -hydroxydiphenyl ether, N-hexyl-N -(4-vinylbenzyl)-4,4 -bipyridinium bromide chloride ... [Pg.403]

On the other hand, cationic polymer brushes grafted on PET surfaces could prevent microbial infection in industrial and medical fields, such as alkyl pyridinium or quaternary ammonium moieties. Gen et al. grafted copolymerized with 4-vinylpyridine (4VP) and subsequently quaternized with hexylbromide [53,54], and N-hexyl-N -(4-vinylbenzyl)-4,4 -bipyridinium bromide chloride (HVV) [55] onto PET films for enhancing antibacterial properties. The PET films were pretreated by argon plasma to form surface... [Pg.101]


See other pages where Vinylbenzyl bromide is mentioned: [Pg.136]    [Pg.824]    [Pg.136]    [Pg.824]    [Pg.305]    [Pg.746]    [Pg.365]    [Pg.427]    [Pg.721]    [Pg.74]    [Pg.78]    [Pg.89]    [Pg.407]    [Pg.169]    [Pg.365]   
See also in sourсe #XX -- [ Pg.190 ]

See also in sourсe #XX -- [ Pg.366 ]




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