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首页> 外文期刊>Journal of Applied Polymer Science >SORPTION AND POLYMERIZATION OF METHYL ISOPROPENYL KETONE IN LOW-DENSITY POLYETHYLENE
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SORPTION AND POLYMERIZATION OF METHYL ISOPROPENYL KETONE IN LOW-DENSITY POLYETHYLENE

机译：甲基异戊基酮在低密度聚乙烯中的吸附和聚合

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The polymerization of methyl isopropenyl ketone (MIPK) inside low-density polyethylene beads has been studied with lauroyl peroxide as the initiator. The reaction was carried out by first immersing the polymer beads in a liquid solution of MIPK monomer and initiator for 5 h at 55 degrees C and then draining the excess liquid. The temperature of these monomer-soaked beads was increased to a reaction temperature (85 degrees C) and the monomer was polymerized in the solid resins. The bulk polymerization of MIPK and the sorption characteristics of MIPK and initiator were also investigated through experimentation and model simulation. It has been observed that the monomer uptake in the solid polymer increased considerably in the presence of the lauroyl peroxide initiator in the liquid phase during the sorption stage. The differential scanning calorimetry study also indicated that some changes in the polymer morphology have occurred due to the incorporation of poly-MIPK into the polyethylene resins. (C) 1995 John Wiley and Sons, Inc. [References: 15]
机译：以月桂酰过氧化物为引发剂，研究了低密度聚乙烯珠粒内部甲基异丙烯基酮（MIPK）的聚合反应。首先将聚合物珠粒浸入MIPK单体和引发剂的液体溶液中，在55摄氏度下反应5小时，然后排出多余的液体，从而进行反应。将这些单体浸透的珠粒的温度升高至反应温度（85℃），并且单体在固体树脂中聚合。通过实验和模型模拟研究了MIPK的本体聚合以及MIPK和引发剂的吸附特性。已经观察到，在吸附阶段，在液相中存在月桂酰过氧化物引发剂的情况下，固体聚合物中单体的吸收显着增加。差示扫描量热法研究还表明，由于将聚-MIPK掺入聚乙烯树脂中，使得聚合物形态发生了一些变化。 （C）1995 John Wiley and Sons，Inc. [参考：15]

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