anhydride-poly(ethylene glycol) co-polymer (A-PEGCP) has been synthesized from maleic anhydride, poly(ethylene glycol) and bisphenol-A diglycidyl ether without using any organic solvent. The thin films produced from A-PEGCP solution were spin-coated on ITO-coated glass. The nanoparticles are observed in the thin films. It is proposed that the nanoparticle is built by a self-assembly process with bisphenol-A aggregates and poly (ethylene glycol) moieties. The effects of concentration, thermal annealing, excitation wavelength and moisture on the optical and nanostructured characterization of the thin films are investigated in this study. Photoluminescence (PL) spectrum of the thin film on ITO-coated glass has a peak of about 450 nm that extends from 360 to 550 nm under 325 nm excitation. The increase in PL intensity is accompanied by a red shift of PL spectrum as concentration increases. Moreover, the slightly red shift of PL spectrum is also observed as annealing temperature increases. Meanwhile, PL intensity negligibly decreases with annealing temperature. The degradation in PL intensity is apparent due to moisture. The excitation-wavelength dependent photoluminescence (EWDP) is observed in the thin film. UV-Vis absorption spectra of the thin films are red-shifted with concentration due to more molecular aggregation. The highest occupied molecular orbital (HOMO) energy is −9.52 eV. The optical band-gap energy is 4.09–4.44 eV.

中文翻译：

---

旋涂技术制备的具有自组装纳米粒子的聚合物薄膜的光学和微观结构表征

酸酐-聚乙二醇共聚物（A-PEGCP）是由马来酸酐，聚乙二醇和双酚-A二缩水甘油醚合成而成，无需使用任何有机溶剂。由A-PEGCP溶液产生的薄膜旋涂在ITO涂层的玻璃上。在薄膜中观察到纳米颗粒。提出通过双酚A聚集体和聚（乙二醇）部分的自组装方法构建纳米颗粒。本研究研究了浓度，热退火，激发波长和水分对薄膜的光学和纳米结构表征的影响。涂有ITO的玻璃上的薄膜的光致发光（PL）光谱具有约450 nm的峰，在325 nm激发下从360扩展到550 nm。PL浓度的增加伴随着PL光谱随浓度增加而发生红移。此外，随着退火温度的升高，PL光谱也出现了轻微的红移。同时，PL强度随退火温度而微不足道地降低。由于水分，PL强度明显下降。在薄膜中观察到与激发波长有关的光致发光（EWDP）。由于更多的分子聚集，薄膜的UV-Vis吸收光谱随浓度而红移。最高占据分子轨道（HOMO）能量为-9.52 eV。光学带隙能量为4.09–4.44 eV。PL强度随退火温度而微不足道地降低。由于水分，PL强度明显下降。在薄膜中观察到与激发波长有关的光致发光（EWDP）。由于更多的分子聚集，薄膜的UV-Vis吸收光谱随浓度而红移。最高占据分子轨道（HOMO）能量为-9.52 eV。光学带隙能量为4.09–4.44 eV。PL强度随退火温度而微不足道地降低。由于水分，PL强度明显下降。在薄膜中观察到与激发波长有关的光致发光（EWDP）。由于更多的分子聚集，薄膜的UV-Vis吸收光谱随浓度而红移。最高占据分子轨道（HOMO）能量为-9.52 eV。光学带隙能量为4.09–4.44 eV。