中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
3,5二溴-4-甲氧基安息香酸 | 3,5-dibromo-4-methoxybenzoic acid | 4073-35-2 | C8H6Br2O3 | 309.942 |
Styrene at various concentrations in benzene has been polymerized at 60°C. and 80°C. using bis(3:5‐ dibromo‐4‐methoxybenzoyl) peroxide and bis(m‐bromo‐benzoyl) peroxide as initiators. Rates of initiation have been determined from analyses of the polymers for combined fragments from the initiators; the analyses were performed by radio‐chemical techniques. It has been confirmed that with these peroxides, transfer to initiator is pronounced and further evidence on the mechanism of this reaction has been obtained. Values for the velocity constants for the dissociations of these peroxides have been derived.