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首页> 外文期刊>Journal of Applied Polymer Science >Tl(III) initiated polymerization of methyl methacrylate in micellar phase
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Tl(III) initiated polymerization of methyl methacrylate in micellar phase

机译：Tl（III）引发胶束相中的甲基丙烯酸甲酯聚合

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摘要

The polymerization kinetics of methyl methacrylate (MMA) was studied, using Tl(III)-cyclohexanone (CH) redox system as initiator, in the presence of emulsifier [i.e., sodium dodecyl sulfate (SDS), cetyltrimethylammonium bromide (CTAB), and thallium triacetate (TX-100)] over a temperature range of 25-45degreesC. The effect of various concentrations of MMA, Tl(III), cyclohexanone, H+, and varying ionic strengths on the rate of polymerization rate of Tl(III) consumption (-R-TI), and the percentage of monomer conversion were examined in the presence of 0.015M SDS. The kinetic results of polymerization in the absence and presence of 0.015M SDS were compared in terms of overall activation energy (E-a) for the process. The viscosity-average molecular weight (M-V) of the polymers, obtained in the presence of varying concentrations of anionic surfactant (SDS), was also determined. (C) 2004 Wiley Periodicals, Inc. [References: 45]
机译：以Tl（III）-环己酮（CH）氧化还原体系为引发剂，在乳化剂[即十二烷基硫酸钠（SDS），十六烷基三甲基溴化铵（CTAB）和th]存在下，研究了甲基丙烯酸甲酯（MMA）的聚合动力学。三乙酸酯（TX-100）]在25-45℃的温度范围内。考察了各种浓度的MMA，Tl（III），环己酮，H +和不同的离子强度对Tl（III）消耗量（-R-TI）聚合速率和单体转化率的影响。存在0.015M SDS。根据该过程的总活化能（E-a），比较了不存在和存在0.015M SDS时聚合反应的动力学结果。还测定了在不同浓度的阴离子表面活性剂（SDS）存在下获得的聚合物的粘均分子量（M-V）。 （C）2004 Wiley Periodicals，Inc. [参考：45]

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