• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Molecules >The Effect of Ultraviolet Irradiation on the Physicochemical Properties of Poly(vinyl Chloride) Films Containing Organotin(IV) Complexes as Photostabilizers
【2h】

The Effect of Ultraviolet Irradiation on the Physicochemical Properties of Poly(vinyl Chloride) Films Containing Organotin(IV) Complexes as Photostabilizers

机译：紫外线照射对含有有机锡（IV）配合物作为光稳定剂的聚氯乙烯薄膜理化性质的影响

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Three organotin(IV) complexes containing ciprofloxacin as a ligand (Ph3SnL, Me2SnL2 and Bu2SnL2; 0.5% by weight) were used as additives to inhibit the photodegradation of polyvinyl chloride films (40 µm thickness) upon irradiation with ultraviolet light (λmax = 313 at a light intensity = 7.75 × 10−7 ein dm−3 S−1) at room temperature. The efficiency of organotin(IV) complexes as photostabilizers was determined by monitoring the changes in the weight, growth of specific functional groups (hydroxyl, carbonyl and carbene), viscosity, average molecular weight, chain scission and degree of deterioration of the polymeric films upon irradiation. The results obtained indicated that organotin(IV) complexes stabilized poly(vinyl chloride) and the dimethyltin(IV) complex was the most efficient additive. The surface morphologies of poly(vinyl chloride) films containing organotin(IV) complexes were examined using an atomic force microscope and scanning electron microscopy. These showed that the surface of polymeric films containing organotin(IV) complexes were smoother and less rough, compared to the surface of the blank films. Some mechanisms that explained the role of organotin(IV) complexes in poly(vinyl chloride) photostabilization process were proposed.
机译：三种含有环丙沙星作为配体的有机锡（IV）配合物（Ph3SnL，Me2SnL2和Bu2SnL2； 0.5％重量）用作添加剂，以抑制紫外线（λmax= 313，在紫外线下）照射时聚氯乙烯膜（厚度为40 µm）的光降解。室温下的光强度= 7.75×10 −7 ein dm -3 S -1 ）。通过监测重量，特定官能团（羟基，羰基和卡宾）的生长，粘度，平均分子量，断链和聚合物膜在降解后的降解程度的变化，确定有机锡（IV）配合物作为光稳定剂的效率。辐射。获得的结果表明，有机锡（IV）配合物稳定了聚氯乙烯，而二甲基锡（IV）配合物是最有效的添加剂。使用原子力显微镜和扫描电子显微镜检查了含有有机锡（IV）配合物的聚氯乙烯薄膜的表面形貌。这些表明，与空白膜的表面相比，含有有机锡（IV）配合物的聚合物膜的表面更光滑，更不粗糙。提出了一些解释有机锡（IV）配合物在聚氯乙烯光稳定过程中的作用的机制。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号