Extraction resistance and mechanism of a macromolecular hindered phenol antioxidant in natural rubber

Wu, W; Li, H; Yang, S; Lai, X; Fan, H; Cai, H; Zeng, X

Extraction resistance and mechanism of a macromolecular hindered phenol antioxidant in natural rubber

Wu, W

Li, H Yang, S Lai, X Fan, H Cai, H Zeng, X

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Publication Type:: Journal Article
Citation:: Journal of Applied Polymer Science, 2017, 134 (22)
Issue Date:: 2017-06-10

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Field	Value	Language
dc.contributor.author	Wu, W https://orcid.org/0000-0002-3601-9294	en_US
dc.contributor.author	Li, H	en_US
dc.contributor.author	Yang, S	en_US
dc.contributor.author	Lai, X	en_US
dc.contributor.author	Fan, H	en_US
dc.contributor.author	Cai, H	en_US
dc.contributor.author	Zeng, X	en_US
dc.date.issued	2017-06-10	en_US
dc.identifier.citation	Journal of Applied Polymer Science, 2017, 134 (22)	en_US
dc.identifier.issn	0021-8995	en_US
dc.identifier.uri	http://hdl.handle.net/10453/124712
dc.description.abstract	© 2017 Wiley Periodicals, Inc. Due to low thermal stability, poor migration, and extraction resistances, the antioxidant with low molecular weight is easy to physically lose during processing and long-term service, and its applications are severely restricted. To increase the molecular weight of antioxidant is one of the promising methods to overcome such drawbacks. In this study, the extraction resistance of a macromolecular antioxidant, namely polyhydroxylated polybutadiene containing thioether binding 2,2′-thiobis(4-methyl-6-tert-butylphenol) (PHPBT-b-TPH), was investigated by extraction resistance test and equilibrium swelling experiment. The results exhibited that the PHPBT-b-TPH offered much better extraction resistance in natural rubber (NR) than the low molecular weight antioxidant TPH. In addition, the extraction resistance of hydroxyl-terminated polybutadiene (HTPB), polyethylene glycol (PEG), and polypropylene glycol (PPG) in NR were also compared to study the extraction mechanism of the PHPBT-b-TPH. It was found that the higher molecular weight of PHPBT-b-TPH and the co-vulcanization between PHPBT-b-TPH and NR were the main reasons for the excellent extraction resistance. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44905.	en_US
dc.relation.ispartof	Journal of Applied Polymer Science	en_US
dc.relation.isbasedon	10.1002/app.44905	en_US
dc.subject.classification	Polymers	en_US
dc.title	Extraction resistance and mechanism of a macromolecular hindered phenol antioxidant in natural rubber	en_US
dc.type	Journal Article
utslib.citation.volume	22	en_US
utslib.citation.volume	134	en_US
utslib.for	0301 Analytical Chemistry	en_US
utslib.for	0904 Chemical Engineering	en_US
utslib.for	03 Chemical Sciences	en_US
utslib.for	09 Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	closed_access
pubs.issue	22	en_US
pubs.publication-status	Published	en_US
pubs.volume	134	en_US

Abstract:

© 2017 Wiley Periodicals, Inc. Due to low thermal stability, poor migration, and extraction resistances, the antioxidant with low molecular weight is easy to physically lose during processing and long-term service, and its applications are severely restricted. To increase the molecular weight of antioxidant is one of the promising methods to overcome such drawbacks. In this study, the extraction resistance of a macromolecular antioxidant, namely polyhydroxylated polybutadiene containing thioether binding 2,2′-thiobis(4-methyl-6-tert-butylphenol) (PHPBT-b-TPH), was investigated by extraction resistance test and equilibrium swelling experiment. The results exhibited that the PHPBT-b-TPH offered much better extraction resistance in natural rubber (NR) than the low molecular weight antioxidant TPH. In addition, the extraction resistance of hydroxyl-terminated polybutadiene (HTPB), polyethylene glycol (PEG), and polypropylene glycol (PPG) in NR were also compared to study the extraction mechanism of the PHPBT-b-TPH. It was found that the higher molecular weight of PHPBT-b-TPH and the co-vulcanization between PHPBT-b-TPH and NR were the main reasons for the excellent extraction resistance. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44905.

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http://hdl.handle.net/10453/124712