Spectroscopic, Physical and Topography of Photochemical Process of PVC Films in the Presence of Schiff Base Metal Complexes

被引：42
作者：
Yousif, Emad [1 ]
Hasan, Ali [1 ]
El-Hiti, Gamal A. [2 ]
机构：
[1] Al Nahrain Univ, Dept Chem, Coll Sci, Baghdad 64021, Iraq
[2] King Saud Univ, Dept Optometry, Coll Appl Med Sci, Cornea Res Chair, POB 10219, Riyadh 11433, Saudi Arabia
来源：
POLYMERS | 2016年 / 8卷 / 06期
关键词：
poly (vinyl chloride); average molecular weight; quantum yield; UV-Vis spectroscopy; photostability; POLY(VINYL CHLORIDE); CROSS-LINKING; STABILITY; POLYMERIZATION; PHOTOOXIDATION; CONVENIENT; POLYMERS;
D O I：
10.3390/polym8060204
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The photostability of poly(vinyl chloride), PVC, containing various Schiff base metal complexes (0.5% by weight) was investigated. Various indices corresponding to a number of functional groups were monitored with irradiation of polymeric films to determine their photostabilization activities. The quantum yield of the chain scission (phi cs) of modified polymeric films was found to be (1.15-4.65) x 10(6). The surface morphology of a PVC sample was investigated by the use of atomic force microscope (AFM). The photostability of PVC films in the presence of Schiff base additives was found to follow the following order: PVC < PVC + CuL2 < PVC + CdL2 < PVC + ZnL2 < PVC + SnL2 < PVC + NiL2. Various mechanisms for PVC films photostability containing the Schiff base additives have been suggested.
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页数：13
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