Initiation mechanisms for radical polymerization of methyl methacrylate with tert-butyl peroxypivalate
Nakamura, T; Busfield, WK; Jenkins, ID; Rizzardo, E; Thang, SH; Suyama, S
| HERO ID | 4854527 |
|---|---|
| In Press | No |
| Year | 1996 |
| Title | Initiation mechanisms for radical polymerization of methyl methacrylate with tert-butyl peroxypivalate |
| Authors | Nakamura, T; Busfield, WK; Jenkins, ID; Rizzardo, E; Thang, SH; Suyama, S |
| Journal | Journal of the American Chemical Society |
| Volume | 118 |
| Issue | 44 |
| Page Numbers | 10824-10828 |
| Abstract | The reaction of tert-butyl peroxypivalate (2) with methyl methacrylate (3) has been studied by the radical trapping technique employing 1,1,3,3-tetramethyl-2,3-dihydro-1H-isoindol (1) as a scavenger. Thermolysis of 2 generated tert-butoxyl, tert-butyl, and methyl radicals in the ratios of 48:50:2 at 60 degrees C in 3. Both alkyl radicals underwent selective tail addition to 3. tert-Butyl radicals reacted about twice as fast as methyl radicals with 3. The absolute rate constant for addition of tert-butyl radicals to 3 was estimated to be 2.3 x 10(6) M(-1) s(-1) at 60 degrees C. The overall ratio of addition to H abstraction in the reaction of 2 with 3 was 5:1. |
| Doi | 10.1021/ja962341b |
| Wosid | WOS:A1996VR41900018 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |