Effect of stannous octoate on the thermal decomposition of 2,2?-azobis(isobutyronitrile)

The effects of microwave power and dielectric properties on the microwave-assisted decomposition kinetics of AIBN in n-butanol

“…The kinetic study showed that MW-assisted decomposition kinetics of AIBN in n-butanol follows first order rate law similar to the thermal experiments, as also documented in previous studies [2][3][4][5][6][7][8][9][10][11][12][13]. Excellent fits with correlation coefficient R 2 higher than 0.9975 with more than 200 data points were obtained in linear regression for the calculation of the rate constants according to Eq.…”

“…The long induction period necessitates the use of an initiator and/or higher polymerization temperature which may cause unwanted side effects. For these reasons, the application of unusual tools was proposed to accelerate polymerization reactions at low temperatures among which MW, Ultrasound, and supercritical CO 2 may be cited [2][3][4][5][6][7][8][9][10][11][12][13]. Many published studies ascribed the accelerating effect of MW on the polymerization kinetics to the increase of the initiator decomposition rate [14][15][16].…”

Kinetics and Mechanism of the Chemical Degradation of Flexible Polyurethane Foam Wastes with Dimethyl H-phosphonate with Different Catalysts

“…This fact could be explained on the basis of an induction period for AIBN that takes about 17min in the absence of tin (II) octoate (SnOc2), whereas it takes only 8 min for the binary system [SnOc2)]/[AIBN]=1, as was observed by Widmaier et al (34). In this way, it is possible that at this reaction condition, AIBN interacts with the tin (II) octoate that was employed as a catalyst of the polymer network formation (35). The fact that final Mw and PD of the glycolisis product was the same in the case of AIBN and K t-butoxide can be also explained taking into account that the same authors also found that with the exception of the induction period, the kinetics of decomposition of AIBN are not influenced by the presence of SnOc2.…”

Interference between reactants in simultaneous interpenetrating polymer network formation. II. Influence of the presence of a free‐radical initiator on polyurethane formation

“…Also, the formation of a cyclic 1 : 1 complex between AIBN and SnOc 2 was confirmed by the increase in the rate of thermal decomposition of AIBN in the presence of SnOc 2 due to steric constraints in the azo links of the complexed initiator. 10…”

“…In addition to the previous studies 9, 10 on interaction between SnOc 2 and AIBN, we have studied tin‐catalyzed polyaddition reactions of isocyanate with macrodiol in solution in the presence of various amounts of AIBN, or mixtures of AIBN and a free‐radical scavenger. Experiments were made at 60 and 25°C, which are temperatures at which AIBN does or does not decompose into radicals, respectively.…”