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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis, Characterization, and Property Evaluations of Copolymers of Diamantyl Methacrylate with Methyl Methacrylate
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Synthesis, Characterization, and Property Evaluations of Copolymers of Diamantyl Methacrylate with Methyl Methacrylate

机译：甲基丙烯酸二金刚烷基酯与甲基丙烯酸甲酯的共聚物的合成，表征及性能评价

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This work reports the homo- and copolymerization behavior of previously unknown 4-diamantyl methacrylate (DMA) with vinyl comonomers like methyl methacrylate (MMA); the starting monomer DMA was synthesized in our laboratory using 4-diamantanol and methacryloyl chloride. The structures of the homo- and copolymers were analyzed using NMR techniques. DMA was found to be more reactive than MMA during copolymerization. The reactivity ratios as determined by the Kelen-Tudos method are r(MMA) = 0.58 and r(DMA) = 1.75. The incorporation of a few mol % of diamantyl units into the PMMA backbone led to a significant increase in its thermal stability and glass transition temperature. The polymers with 15 and 42 mol % of DMA units in the copolymers showed increased T-g values of 126 degrees C and 172 degrees C, respectively.
机译：这项工作报告了以前未知的甲基丙烯酸4-二苯丙酯（DMA）与乙烯基共聚单体（如甲基丙烯酸甲酯（MMA））的均聚和共聚行为;起始单体DMA是在我们的实验室中使用4-二金刚烷醇和甲基丙烯酰氯合成的。使用NMR技术分析均聚物和共聚物的结构。发现在共聚过程中，DMA比MMA具有更高的反应性。通过Kelen-Tudos方法确定的反应性比是r（MMA）＝ 0.58和r（DMA）＝ 1.75。将少量摩尔％的二金刚烷基单元掺入到PMMA主链中导致其热稳定性和玻璃化转变温度显着提高。在共聚物中具有15和42mol％的DMA单元的聚合物分别显示出增加的T-g值分别为126℃和172℃。

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