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]
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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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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 (T_gs) 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 T_g, and the o- and p-methoxyphenol-based polybenzoxazines exhibit higher shape memory performance than m-methoxyphenol-based counterparts under motion constraints.

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Funding

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

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

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

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