Monomer Reactivity Ratios for the Copolymerization of Methyl Methacrylate with Pure Meta- and Pure Para-Divinylbenzene
- 1 October 1968
- journal article
- research article
- Published by Taylor & Francis in Journal of Macromolecular Science: Part A - Chemistry
- Vol. 2 (6) , 1097-1104
- https://doi.org/10.1080/10601326808051881
Abstract
The monomer reactivity ratios for methyl methacrylate (MMA) with pure meta-divinylbenzene (m-DVB) and with pure para-divinylbenzene (p-DVB), determined with radioactivity assay techniques, are r1(MMA) = 0. 41, r2(m-DVB) = 0.61 and r1(MMA) ≃ 0.62, r2(p-DVB) ≃ 1. 3. The data for the MMA/m-DVB pair give a fairly precise solution of the copolymerization equation and are in accord with previously observed styrene (S)/methyl methacrylate values [8] (r1 = 0.52,r2 - 0.41). The data for the MMA/p-DVB pair, as was also observed for the S/p-DVB pair, do not give an entirely satisfactory solution for the equation but do indicate a substantial preference of both (p-DVB and MMA or S) radicals for the p-DVB monomer and thus confirm a postulated clustering of p-DVB units.Keywords
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