INITIATING SYSTEM TRI-N-BUTYLBORANE-OXYGEN IN PVC POLYMERIZATION FILLING WITH MINERAL FILLERS |
3 | |
2012 |
CHEMISTRY |
scientific article | 547.1'13 | ||
79-82 | polymerization filling, tri-n-butylborane, n-butoxi-di-n-butylborane, oxygen, vinyl chloride, aerosil |
PVC radical polymerization under the action of initiating systems tri-n-butylborane – oxygen and n-butoxi-di-n-butylborane - oxygen runs with high efficiency of polymer grafting on aerosil. The share of the grafted polymer and monomer conversion depend on the ratio of the system components. The maximum rate of polymerization is achieved at the mole ratio of O2 and n-Bu3B equal to 0.5-0.6. The proportion of the grafted polymer has been shown to vary slightly in the range of component ratios 1:0.2 ? 1:1.4. |
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