当前位置: X-MOL 学术J. Vinyl Addit. Technol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Enhancement of Photostabilization of Poly(vinyl chloride) Doped with Sulfadiazine Tin Complexes
Journal of Vinyl and Additive Technology ( IF 2.7 ) Pub Date : 2019-12-03 , DOI: 10.1002/vnl.21752
Dina S. Ahmed 1 , Gamal A. El‐Hiti 2 , Hanan Ibraheem 3 , Mohammad Hayal Alotaibi 4 , Mustafa Abdallh 3 , Ahmed A. Ahmed 5 , Mustafa Ismael 3 , Emad Yousif 3
Affiliation  

New sulfadiazine tin complexes were synthesized in 67–80% yields from the reaction of sulfadiazine, and different organotin(IV) chlorides and their structures were established. The synthesized complexes were used as additives at a low concentration (0.5% by weight) to enhance poly(vinyl chloride) (PVC) photostability. The PVC samples containing sulfadiazine tin complexes (thickness = 40 μm) were fabricated and irradiated with ultraviolet light at room temperature for 300 h. The changes that occurred within the PVC samples upon irradiation were investigated by inspecting the loss in weight, reduction in the average molecular weight, formation of small degradation fragments containing polyene, carbonyl, and hydroxyl moieties, and changes in the ultraviolet absorption intensity of polymeric materials. The surface morphology of irradiated PVC samples was investigated using optical, atomic force, and scanning electron microscopies. There were lesser changes within the PVC samples with sulfadiazine tin complexes compared to the blank PVC sample. The dimethyltin(IV) complex was found to be the most efficient additive in stabilizing PVC against irradiation. The role played by the complexes in reducing the photodegradation of PVC was investigated, and a mechanism was proposed. J. VINYL ADDIT. TECHNOL., 26:370–379, 2020. © 2019 Society of Plastics Engineers

中文翻译:

磺胺嘧啶锡配合物掺杂的聚氯乙烯的光稳定性增强

通过磺胺嘧啶的反应合成了新的磺胺嘧啶锡配合物,产率为67-80%,并建立了不同的有机锡(IV)氯化物及其结构。合成的配合物以低浓度(0.5%(重量))用作添加剂,以增强聚氯乙烯(PVC)的光稳定性。制备含有磺胺嘧啶锡配合物(厚度= 40μm)的PVC样品,并在室温下用紫外线照射300 h。通过检查重量损失,平均分子量降低,含有多烯,羰基和羟基部分的小降解碎片的形成以及聚合物材料的紫外线吸收强度的变化,研究了辐照在PVC样品中发生的变化。 。使用光学,原子力和扫描电子显微镜研究了辐照的PVC样品的表面形态。与空白的PVC样品相比,具有磺胺嘧啶锡配合物的PVC样品的变化较小。发现二甲基锡(IV)络合物是稳定PVC免受辐射的最有效添加剂。研究了配合物在降低PVC光降解中的作用,并提出了机理。J.乙烯基添加物。TECHNOL。,26:370–379,2020.©2019塑料工程师协会 发现二甲基锡(IV)络合物是稳定PVC免受辐射的最有效添加剂。研究了配合物在降低PVC光降解中的作用,并提出了机理。J.乙烯基添加物。TECHNOL。,26:370–379,2020.©2019塑料工程师协会 发现二甲基锡(IV)络合物是稳定PVC免受辐射的最有效添加剂。研究了配合物在降低PVC光降解中的作用,并提出了机理。J.乙烯基添加物。TECHNOL。,26:370–379,2020.©2019塑料工程师协会
更新日期:2019-12-03
down
wechat
bug