A novel photoadditive for polyolefin photostabilization: hindered amine light stabilizer

A novel photoadditive for polyolefin photostabilization: hindered amine light stabilizer

Hindered‐amine light stabilizers were surface anchored to polyethylene and polypropylene thin films by: i) direct photo‐grafting of 1,2,2,6,6‐pentamethyl piperidinyl‐4‐acrylate onto the surface and ii) by reacting of 1,2,2,6,6‐pentamethyl‐4‐piperidinol with succinic anhydride functionalized polyolef...

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Bibliographic Details
Published in:Macromolecular symposia. Vol. 169; no. 1; pp. 121 - 128
Main Authors: Desai, Shrojal M., Pandey, Jitendra K., Singh, R.P.
Format: Journal Article
Language:English
Published: Weinheim WILEY-VCH Verlag GmbH 01-05-2001
WILEY‐VCH Verlag GmbH
Subjects:
Anhydrides
Blended
Melt blending
Melts
Polyolefins
Polypropylenes
Spectroscopy
Thin films
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Summary:Hindered‐amine light stabilizers were surface anchored to polyethylene and polypropylene thin films by: i) direct photo‐grafting of 1,2,2,6,6‐pentamethyl piperidinyl‐4‐acrylate onto the surface and ii) by reacting of 1,2,2,6,6‐pentamethyl‐4‐piperidinol with succinic anhydride functionalized polyolefin surface. The samples were exposed to UV irradiation in air and the oxidative‐degradation of the polymers was studied with FT‐IR spectroscopy. The photo‐stability of surface anchored Hindered‐amine stabilizers (HAS) was compared with films stabilized with commercial HAS by melt blending. The results of the study evince superiority of surface anchored HAS over that of melt blended polyolefins.
Bibliography:istex:454D2B059F0758B3F8EA9233DA8454D9D8C6A212
ark:/67375/WNG-MP2P3NHW-W
ArticleID:MASY121
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1022-1360
1521-3900
DOI:10.1002/1521-3900(200105)169:1<121::AID-MASY121>3.0.CO;2-H