Effect of Antioxidant System on Aging Properties of Poly(1-butene) and the Aging Mechanism. Issue 7 (2nd July 2016)

• Record Type: Journal Article
• Authors: Shao, Huafeng; Wang, Shulei; Jiang, Dongxu; He, Aihua
• Is Part Of: Journal of macromolecular science. Volume 55:Issue 7(2016)
• Page Start: 643
• Page End: 651
• Publication Date: 2016-07-02
• Subjects: aging properties -- hot oxygen aging mechanism -- isotactic poly(1-butene) -- oxidation induction time; Polymerization -- Periodicals; Polymers -- Periodicals; 530.413
• DOI: 10.1080/00222348.2016.1186526
• Languages: English
• ISSNs: 0022-2348

Abstract

ABSTRACT: The aging property of poly(1-butene) in which different antioxidant systems were added was characterized by its physical and mechanical properties before and after aging for 300 h in a hot air aging box. In addition, the oxidation induction time (OIT) of all designed samples was tested. The result demonstrated that the primary antioxidant pentaerythritol tetrakys 3-(3, 5-ditert-butyl-4-hydroxyphenyl) propionate performed better than n-octadecyl-β-(4-hydroxy-3, 5-di-tert -butyl-phenyl)-propionate. The anti-aging effect of the secondary antioxidant was ranked in the order bis-(2, 4-di-tert-butyl-pheny)-phosphiterythritol diphosphite better than tns-(2.4-di-tert-butyl)-phosphite, with both better than distearyl thiodipropionic acid. Confirmation of oxidation of the polymer was made by IR analysis and a general oxidation mechanism scheme for poly(1-butene) is presented.