Alotaibi Mohammad Hayal, El-Hiti Gamal A, Hashim Hassan, Hameed Ayad S, Ahmed Dina S, Yousif Emad
National Center for Petrochemicals Technology, King Abdulaziz City for Science and Technology, P.O. Box 6086, Riyadh, 11442, Saudi Arabia.
Department of Optometry, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh, 11433, Saudi Arabia.
Heliyon. 2018 Dec 8;4(12):e01013. doi: 10.1016/j.heliyon.2018.e01013. eCollection 2018 Dec.
The fabrication of tunable poly(vinyl chloride) porous films containing polyphosphate as an additive was successful. Irradiation of poly(vinyl chloride) films containing polyphosphate at a low concentration (0.5% by weight) with an ultraviolet light (λ = 313 nm) for 300 h leads to the formation of a honeycomb like structure. The scanning electron microscopy images, at different magnification power, confirmed the production of the PVC honeycomb-like structure. The morphological images of the polymeric film showed a rough surface and a large number of regularly distributed hexagonal pores. The number of pores increased upon irradiation time and it was maximum after 300 h. The honeycomb structure formation could be due to the regular aggregation of polyphosphate among the polymeric chains, the increase in solution intrinsic viscosity and evaluation of hydrogen chloride gas through dehydrochlorination process.
成功制备了含有聚磷酸盐作为添加剂的可调谐聚氯乙烯多孔膜。用紫外线（λ = 313 nm）对含有低浓度（0.5重量%）聚磷酸盐的聚氯乙烯膜辐照300小时，会形成蜂窝状结构。不同放大倍数下的扫描电子显微镜图像证实了聚氯乙烯蜂窝状结构的产生。聚合物膜的形态图像显示表面粗糙且有大量规则分布的六边形孔。孔的数量随辐照时间增加，在300小时后达到最大值。蜂窝结构的形成可能是由于聚磷酸盐在聚合物链间的规则聚集、溶液特性粘度的增加以及通过脱氯化氢过程释放氯化氢气体所致。
