STUDIES ON PHOTOPROTECTING BEHAVIOUR FOR THE SYSTEM OF STYRENE-2,2,6,6-TETRAMETHYL-4-PIPERI-DINYL METHACRYLATE (PDS) COPORMER/UV ABSORBERS IN POLYPROPYLENE (PP) FILMS
LIU Zhong-wen, PAN Jiang-qing, CUI Meng-yuan. STUDIES ON PHOTOPROTECTING BEHAVIOUR FOR THE SYSTEM OF STYRENE-2,2,6,6-TETRAMETHYL-4-PIPERI-DINYL METHACRYLATE (PDS) COPORMER/UV ABSORBERS IN POLYPROPYLENE (PP) FILMS[J]. Acta Polymerica Sinica, 1989,(6):702-708.
LIU Zhong-wen, PAN Jiang-qing, CUI Meng-yuan. STUDIES ON PHOTOPROTECTING BEHAVIOUR FOR THE SYSTEM OF STYRENE-2,2,6,6-TETRAMETHYL-4-PIPERI-DINYL METHACRYLATE (PDS) COPORMER/UV ABSORBERS IN POLYPROPYLENE (PP) FILMS[J]. Acta Polymerica Sinica, 1989,(6):702-708.DOI:
The photoprotecting behaviour of PDS and two UV-absorbers for PP film has been studied by determination of infrared and ultraviolet spectroscopy and scanning electron microscopy. The results have shown that PDS synergises effectively with 2-hydroxy-4-n-octyloxybenzopheno-ne (UV-531) and antagonises weakly with 2-(2-hydroxy-3
5-di-tert-butyl-phenyl) -5-chloroben-zotriazole (UV-327). It has also been shown that PDS had protected them from photolysis. In addition
it was found that a nonuniform dispersion of UV-327 was formed in PP matrix in pre-sence of PDS. The mechanisms of the synergistic and antagonistic effects under these condi-tion have been proposed.