Salam Baneen, El-Hiti Gamal A, Bufaroosha Muna, Ahmed Dina S, Ahmed Ahmed, Alotaibi Mohammad Hayal, Yousif Emad
Department of Chemistry, College of Science, Al-Nahrain University, Baghdad 64021, Iraq.
Cornea Research Chair, Department of Optometry, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh 11433, Saudi Arabia.
Polymers (Basel). 2020 Dec 6;12(12):2923. doi: 10.3390/polym12122923.
The lifetime of poly(vinyl chloride) (PVC) can be increased through the addition of additives to provide protection against irradiation. Therefore, several new tin complexes containing atenolol moieties were synthesized and their photostabilizing effect on PVC was investigated. Reacting atenolol with a number of tin reagents in boiling methanol provided high yields of tin complexes. PVC was then mixed with the tin complexes at a low concentration, producing polymeric thins films. The films were irradiated with ultraviolet light and the resulting damage was assessed using different analytical and surface morphology techniques. Infrared spectroscopy and weight loss determination indicated that the films incorporating tin complexes incurred less damage and less surface changes compared to the blank film. In particular, the triphenyltin complex was very effective in enhancing the photostability of PVC, and this is due to its high aromaticity (three phenyl rings) compared to other complexes. Such an additive acts as a hydrogen chloride scavenger, radical absorber, and hydroperoxide decomposer.
聚氯乙烯（PVC）的使用寿命可以通过添加添加剂来提高，以提供抗辐射保护。因此，合成了几种含有阿替洛尔部分的新型锡配合物，并研究了它们对PVC的光稳定作用。在沸腾的甲醇中使阿替洛尔与多种锡试剂反应，可高产率地得到锡配合物。然后将PVC与低浓度的锡配合物混合，制成聚合物薄膜。用紫外光照射薄膜，并使用不同的分析和表面形态技术评估由此产生的损伤。红外光谱和失重测定表明，与空白薄膜相比，掺入锡配合物的薄膜损伤更小，表面变化更少。特别是，三苯基锡配合物在增强PVC的光稳定性方面非常有效，这是由于与其他配合物相比，它具有高芳香性（三个苯环）。这种添加剂起到氯化氢清除剂、自由基吸收剂和氢过氧化物分解剂的作用。
