Shape memory effect of poly(d, l-lactide)/Fe3O4 nanocomposites by inductive heating of magnetite particles
Abstract
In this paper, the preparation of biocompatible poly(D,L-lactide) (PDLLA)/magnetite (Fe(3)O(4)) nanocomposites and their shape memory effect are reported. Fe(3)O(4) nanoparticles with an average size of 20 nm were synthesized by chemical co-precipitation and mixed uniformly with a PDLLA matrix. Scanning electron microscopy (SEM), differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR) and mechanical testing were carried out to determine the micro-surface morphology, glass transition temperature (T(g)), functional groups change and mechanical properties of the PDLLA/Fe(3)O(4) nanocomposites. The interesting shape memory behavior of the nanocomposites induced by an ultrasonic alternating magnetic field were also observed. SEM and DSC showed that there was a close interaction between the polymer matrix and the magnetic nanoparticles. Formation of weak hydrogen bonds between the C=O in PDLLA and Fe-OH groups of the surface of nano-crystalline Fe(3)O(4) was examined by FTIR. The PDLLA/Fe(3)O(4) nanocomposites displayed a desirable shape memory effect.
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The relationships among the interface interaction, induction heating performance, as well as the influence on the mechanical properties and SME have been investigated systemically.
“The relationships among the interface interaction, induction heating performance, as well as the influence on the mechanical properties and SME have been investigated systemically [375,380,391,396].”
From A review of stimuli-responsive shape memory polymer composites (2013) · cites this paper as [396]
Fe3O4 NPs obtained by co-precipitation of divalent and trivalent iron salts using PEG-10000 as dispersing surfactant were uniformly dispersed in biocompatible PDLLA.
“For example, Fe3O4 NPs obtained by co-precipitation of divalent and trivalent iron salts using PEG-10000 as a dispersing surfactant were uniformly dispersed in the biocompatible poly(D,Llactide) (PDLLA/Fe3O4 weight ratios of 1:1, 2:1, 3:1).”
From Shape-memory polymers for multiple applications in the materials world (2016) · cites this paper as [157]
The recovery ratio in this system depended on the physical entanglements of molecular chains and the NPs content (average specimen response time around 35 s).
“The recovery ratio in this system was depending on the physical entanglements of molecular chains and the NPs content (average specimen response time around 35 s) [157].”
From Shape-memory polymers for multiple applications in the materials world (2016) · cites this paper as [157]
The PDLLA/Fe3O4 materials presented enhanced tensile properties explained by interaction between the NPs and the PDLLA (hydrogen bonding between Fe-OH group of Fe3O4 and O=C of PDLLA) and SME upon alternating magnetic field (frequency 20 kHz and strength 6.8 kA/m).
“The materials presented enhanced tensile properties were explained the occurred interaction between the NPs and the PDLLA (hydrogen bonding between Fe-OH group of Fe3O4 and O=C of PDLLA) and SME upon alternating magnetic field (frequency of 20 kHz and strength of 6.8 kA/m).”
From Shape-memory polymers for multiple applications in the materials world (2016) · cites this paper as [157]
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- Authors
- Zheng, X., Zhou, S., Xiao, Y., Yu, X., Li, X., & Wu, P.
- Affiliations
- Southwest Jiaotong University (CN)
- Corresponding author
- Zhou, Shaobing
- Venue
- Colloids and Surfaces B Biointerfaces
- Publisher
- Elsevier BV
- Published
- 2009-06
- Volume
- 71
- Issue
- 1
- Pages
- 67-72
- ISSN
- 0927-7765 (ISSN-L)
- OpenAlex
- W2133781320
- Cited by
- 112
- References
- 30
- Citations by year
- 2026: 2 · 2025: 5 · 2024: 6 · 2023: 7 · 2022: 6 · 2021: 10 · 2020: 7 · 2019: 9 · 2018: 8 · 2017: 4 · 2016: 13 · 2015: 6 · 2014: 4 · 2013: 10 · 2012: 8
- FWCI
- 10.01
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Colloids and Surfaces B Biointerfaces (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Natural Science Foundation of China
- Program for New Century Excellent Talents in University
- Division of Materials Research
- Topics
- Physical Sciences › Engineering › Mechanical Engineering › Advanced Materials and Mechanics
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer composites and self-healing
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Medicine › Hydrogels: synthesis, properties, applications
- Keywords
- shape memory effect, poly(D,L-lactide), Fe3O4 nanoparticles, magnetite, polymer nanocomposites, induction heating, alternating magnetic field, co-precipitation synthesis, hydrogen bonding, glass transition temperature, mechanical properties, biocompatible polymers, magnetic nanoparticles
- MeSH terms
- Biocompatible Materials, Calorimetry, Differential Scanning, Microscopy, Electron, Scanning, Polyesters, Spectroscopy, Fourier Transform Infrared, Transition Temperature, Ferrosoferric Oxide, Nanocomposites
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