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International Journal of Polymer Analysis and Characterization Volume 25, 2020 - Issue 6
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Articles

Effect of methoxy position on dynamic mechanical and shape memory properties of methoxyphenol-based polybenzoxazines

Guosheng LuKey Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, ChinaView further author information
,
Huiyun YangKey Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, ChinaView further author information
,
Hecheng ZhenKey Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, ChinaView further author information
,
Cuiyun LiKey Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, ChinaView further author information
,
Shanshan ShenKey Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, ChinaView further author information
,
Yanfang LiuKey Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, ChinaCorrespondence[email protected]
View further author information
&
Mingtao RunKey Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, ChinaView further author information
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Pages 397-408 | Received 05 Mar 2020, Accepted 14 Jul 2020, Published online: 31 Jul 2020
 
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Abstract

Two series of benzoxazines were synthesized from o-, m-, and p-methoxyphenols, two polyetheramines with different molecular weights, and formaldehyde. The glass transition temperatures (Tgs) of m-methoxyphenol-based polybenzoxazines are respectively higher than those of o- and p-methoxyphenol-based counterparts. The polybenzoxazines exhibit thermally induced one-way dual-shape memory behavior based on Tg, and the o- and p-methoxyphenol-based polybenzoxazines exhibit higher shape memory performance than m-methoxyphenol-based counterparts under motion constraints.

Additional information

Funding

This work was financially supported by the Natural Science Foundation of Hebei Province [B2017201109].

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