Biodegradable magnetic‐sensitive shape memory poly(ɛ‐caprolactone)/Fe3O4 nanocomposites

Yuliang Gao; Guangming Zhu; Shuogui Xu; Tuotuo Ma; Jing Nie

doi:10.1002/app.45652

journal article Aug 17, 2017

Biodegradable magnetic‐sensitive shape memory poly(ɛ‐caprolactone)/Fe3O4 nanocomposites

Yuliang Gao

Guangming Zhu

Shuogui Xu

Tuotuo Ma Jing Nie

Journal of Applied Polymer Science Vol. 135 No. 1 · Wiley

View at Publisher Save 10.1002/app.45652

Abstract

ABSTRACTA novel biodegradable magnetic‐sensitive shape memory poly(ɛ‐caprolactone) nanocomposites, which were crosslinked with functionalized Fe3O4 magnetic nanoparticles (MNPs), were synthesized via in situ polymerization method. Fe3O4 MNPs pretreated with γ‐(methacryloyloxy) propyl trimethoxy silane (KH570) were used as crosslinking agents. Because of the crosslinking of functionalized Fe3O4 MNPs with poly(ɛ‐caprolactone) prepolymer, the properties of the nanocomposites with different content of functionalized Fe3O4 MNPs, especially the mechanical properties, were significantly improved. The nanocomposites also showed excellent shape memory properties in both 60 °C hot water and alternating magnetic field (f = 60, 90 kHz, H = 38.7, 59.8 kA m−1). In hot water bath, all the samples had shape recovery rate (Rr) higher than 98% and shape fixed rate (Rf) nearly 100%. In alternating magnetic field, the Rr of composites was over 85% with the highest at 95.3%. In addition, the nanocomposites also have good biodegradability. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45652.

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Details

Published: Aug 17, 2017
Vol/Issue: 135(1)
License: View

Authors

Y

Yuliang Gao

Department of Applied Chemistry Northwestern Polytechnical University 127 West Friendship Road, Xi'an 710072 People's Republic of China

G

Guangming Zhu

Department of Applied Chemistry Northwestern Polytechnical University 127 West Friendship Road, Xi'an 710072 People's Republic of China

S

Shuogui Xu

Emergency Medicine Department & Trauma Emergency Center Changhai Hospital, Second Military Medical University 168 Changhai Road, Shanghai 200433 People's Republic of China

T

Tuotuo Ma

Department of Applied Chemistry Northwestern Polytechnical University 127 West Friendship Road, Xi'an 710072 People's Republic of China

J

Jing Nie

Department of Applied Chemistry Northwestern Polytechnical University 127 West Friendship Road, Xi'an 710072 People's Republic of China

Cite This Article

Yuliang Gao, Guangming Zhu, Shuogui Xu, et al. (2017). Biodegradable magnetic‐sensitive shape memory poly(ɛ‐caprolactone)/Fe3O4 nanocomposites. Journal of Applied Polymer Science, 135(1). https://doi.org/10.1002/app.45652

Biodegradable magnetic‐sensitive shape memory poly(ɛ‐caprolactone)/Fe3O4 nanocomposites

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