2-Bromoethyl methacrylate

Table IV compares the X-ray exposure characteristics (at 8.3 X, Al Kai,2 emission line) of the halogenated resists and of PMMA Elvacite 20U1. It can be seen that poly(2-ehloroethyl methacrylates) and poly(2-bromoethyl methacrylates) exhibit a low sensitivity unlike poly(2-fluoroethyl methacrylates) and poly(2-, 2-,2-trifluoroethyl methacrylates) which are more sensitive than PMMA as shown in Figures 2a, 2b, 2c, 2d where the dose-thickness curves of these resists are plotted. The low sensitivity of the PC1EMA and PBrEMA samples may be explained by some competing crosslinking reactions which could occur during exposure as a result of C-Cl and C-Br homolytic bond scissions as noted by Tada...

For the preparation of /V-2-methacryIoyloxyethyl-5-fluorouracil (MAOFU), which is a typical polymerizable monomer containing 5-FU, the silylated 5-FU (1) was allowed to react with 2-bromoethyl methacrylate in acetonitrile at refluxing temperature the decomposition of the silylated compound followed in a manner similar to that described previously [27]. MAOFU was obtained in 20% yield. When no solvent was used, the yield was extremely low, as is the reaction of silylated uracil with 2-bromoethyl methacrylate [27],... 

Theobromine (2 g, 0,01 mol) was added to DMF (50 mL), which gave a colorless suspension. To this suspension, NaH (0,6 g. 0.012 mol) was added. After reaction under at rt for 2 h, the system was a viscous jelly. When the evolution of ceased, 2-(bromoethyl)methacrylate (3.0 mL, 0,014 mol) was added drop-wise with stirring which was continued for 3 h. From the resulting, colorless, transparent liquid, DMF was distilled off in vacuo. The crude product was recrystallized (MeOH) yield 1.78 g (55%) mp 119 -120 °C. The polymerization was carried out in sealed tubes in vacuo under N, in the presence of AIBN in MeCN/acetone (6 5). 

Poly(cyclohexyl a-bromoacrylate) Poly(2-bromoethyl methacrylate) Poly(ethylmercaptyl methacrylate) Poly(l-phenylethyl methacrylate)... 

Bromoethyl methacrylate is converted into methyl A-(methacryloyloxy)ethyl carbamate on treatment with KOCN in methanol in the presence of Bu NBr. 

Bromoethyl methacrylate Single Tgi transparency I had 14-61 wt%AN Neo and Grfi (1991a)... 

Bromoethyl methacrylate Ester Single Tg II was ethylene adipate, caprolactone, butylene adipate, 2.2- dimetyl-1,3-propylene adipate, 2,2-dimetyl- 1.3- propylene sebacate, or hexamethylene sebacate Neo and Goh (1993)... 

Bromoethyl methacrylate Single Tgi transparency Miscible when cast from methyl ethyl ketone immiscible en cast from tetrahydrofuran Neo and Goh (1992a)... 

Stanke et al. [166] first synthesized these copolymers because of the heterogeneous nature of composites, in terms of conductivity and transmittance. After successfully attaching a pyrrole moiety (7%) onto a copolymer of methyl methacrylate and 2-bromoethyl methacrylate, they polymerized pyrrole onto the copolymer by chemical oxidation in nitromethane and under argon. FT-IR spectra of the products show that the C—H bending vibration in A-monosubstituted pyroles at 725 cm" disappears even at the lowest pyrrole/2-A-pyrrolylethyl methacrylate (PEMA) ratio, indicating almost complete reaction. The conductivity of the 10 1 (pyrrole/PEMA) copolymer is 2 x 10" S cm" . 

Methyl methacrylate, 2-bromoethyl methacrylate, traces of vinyl bromide 130... 

Poly(2-bromoethyl methacrylate-co-styrene) (50/50, mol/mol) Ambient to 500 Styrene, 2-bromoetliyl methacrylate, modified chain fragement fraction. Minor products ethylene, CO2, HBr, vinyl bromide, acetaldehyde 139... 

Vinyl bromide Vinyl chloride 2-Bromoethyl methacrylate... 

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