New naphthalene‐ and perylene‐containing polyarylene poly(amic acid)s and polyimides were synthesized from a new phenylated phenylenediamine. A small‐molecule model compound was also synthesized with naphthalene end‐groups. The new compounds were characterized, and the structures were confirmed using ¹H NMR and attenuated total reflectance Fourier transform infrared spectroscopy. Thermal characterization was conducted using thermogravimetric analysis and differential scanning calorimetry. Onset of thermal degradation temperatures for the naphthalene and perylene polyimides were 561 and 545 °C, and char yields at 1000 °C were 61 and 59% (under nitrogen), respectively. The glass transition temperatures were 381 and 396 °C, respectively. Molecular weights determined using gel permeation chromatography were M_w = 35 000 and 24 000 g mol⁻¹, respectively. The absorption maxima were at 387 and 427/458/491/527 nm, respectively, while the fluorescence emission maxima were at 498 and 541/582 nm, respectively. Nanoparticles were prepared from these new fluorescent dye‐containing polyarylene polyimides with sizes of 102/397 and 177 nm, respectively, as determined using dynamic light scattering. © 2020 Society of Industrial Chemistry

中文翻译：

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含荧光染料部分的聚亚芳基聚（酰胺酸）和聚酰亚胺的合成，表征和纳米粒子形成

由新的苯基化苯二胺合成了新的含萘和per的聚亚芳基聚（酰胺酸）和聚酰亚胺。还合成了带有萘端基的小分子模型化合物。对新化合物进行了表征，并使用¹ H NMR和衰减的全反射傅里叶变换红外光谱对结构进行了确认。使用热重分析和差示扫描量热法进行热表征。萘和per聚酰亚胺的热降解温度开始为561和545°C，在1000°C下的炭收率分别为61％和59％（在氮气下）。玻璃化转变温度分别为381和396℃。使用凝胶渗透色谱法测定的分子量为M _w分别为35 000和24 000 g mol ^-1。吸收最大值分别在387和427/458/491/527 nm，而荧光发射最大值分别在498和541/582 nm。用动态光散射法测定的这些新的含荧光染料的聚亚芳基聚酰亚胺分别制​​备了纳米粒子，尺寸为102/397和177 nm。©2020工业化学学会