In this study, the relation between the amount of a polar plasticizer, i.e. glycerol, and the glass transition temperature (T_g) and ion content of the poly(styrene-Na methacrylate) (PSMANa) ionomers was investigated dynamic mechanically. Since glycerol affected the formation of ionic aggregates due to its polarity, the T_g of ion poor matrix regions decreased slightly. On the other hand, the cluster T_g (T_g,c) was influenced by the amount of glycerol, the ion content of the ionomer, and the phase separation of glycerol in the ionomer matrix. Furthermore, the T_g,c of plasticized ionomers was estimated by a simple equation as follows: 1/(T_g,c (°C) – 7.1 × (15.7 – ion content (mol%))) (°C) = 1/(166 + 7.1 × ion content (mol%)) + 0.00025 × (wt% of plasticizer). In addition, the maximum amount of glycerol (wt%) before phase separation was simply expressed as 0.124 × (ion content (mol%))². The above results revealed that the T_g,c of PSMANa ionomers could be controlled from above 300 °C to below 100 °C by changing the ion content of the ionomers and the amount of glycerol in the ionomers.

在这项研究中，对极性增塑剂（即甘油）的量与聚（苯乙烯-甲基丙烯酸钠）（PSMANa）离聚物_{的玻璃化转变温度（Tg} ）和离子含量之间的关系进行了动态机械研究。由于甘油由于其极性影响离子聚集体的形成，因此离子贫乏基质区域的T _g略有下降。另一方面，簇T _g ( T _g,c )受甘油的量、离聚物的离子含量和离聚物基质中甘油的相分离的影响。此外，增塑离聚物的T _g,c通过一个简单的公式估计如下： 1/(T _g,c (°C) – 7.1 × (15.7 – 离子含量 (mol%))) (°C) = 1/(166 + 7.1 × 离子含量 (mol%)) + 0.00025 × (wt% 增塑剂) . 此外，相分离前的最大甘油含量（wt%）简单地表示为0.124×（离子含量（mol%））²。上述结果表明，通过改变离聚物的离子含量和离聚物中甘油的含量，可以将PSMANa离聚物的Tg _，c从300℃以上控制到100℃以下。