Introduction to Shape-Memory Polymers, Polymer Blends and Composites: State of the Art, Opportunities, New Challenges and Future Outlook

Jose, Seno; George, Jinu Jacob; Siengchin, Suchart

doi:10.1007/978-981-13-8574-2_1

Cited by 12 publications

(11 citation statements)

References 161 publications

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“…The interfacial tension defines the contact between the polymer phases of a polymer system, and when it approaches zero, the blend becomes miscible. In other words, if the phases interact strongly, the polymer blend will be miscible [111]. Large interfacial tensions can cause phase separation, with the separated particles possibly coalescing, thereby resulting in an increase in particle size and a reduction in terms of the mechanical characteristics.…”

Section: Compatibility Of Polymer Blendsmentioning

confidence: 99%

Chitosan-Based Polymer Blends for Drug Delivery Systems

et al. 2023

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Polymers have been widely used for the development of drug delivery systems accommodating the regulated release of therapeutic agents in consistent doses over a long period, cyclic dosing, and the adjustable release of both hydrophobic and hydrophilic drugs. Nowadays, polymer blends are increasingly employed in drug development as they generate more promising results when compared to those of homopolymers. This review article describes the recent research efforts focusing on the utilization of chitosan blends with other polymers in an attempt to enhance the properties of chitosan. Furthermore, the various applications of chitosan blends in drug delivery are thoroughly discussed herein. The literature from the past ten years was collected using various search engines such as ScienceDirect, J-Gate, Google Scholar, PubMed, and research data were compiled according to the various novel carrier systems. Nanocarriers made from chitosan and chitosan derivatives have a positive surface charge, which allows for control of the rate, duration, and location of drug release in the body, and can increase the safety and efficacy of the delivery system. Recently developed nanocarriers using chitosan blends have been shown to be cost-effective, more efficacious, and prolonged release carriers that can be incorporated into suitable dosage forms.

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Section: Compatibility Of Polymer Blendsmentioning

confidence: 99%

Chitosan-Based Polymer Blends for Drug Delivery Systems

et al. 2023

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“…Many shape memory polymers have been used as substrates [174], such as cross-linked shape memory polyacrylate [175], which has been used as a substrate for light-emitting diodes when combined with silver nanowires or single-walled carbon nanotubes; polycaprolactone (PCL) [176], which was used to create a structure responsive to heat; and also poly(tertbutyacrylate) (PTBA) [167], which has been applied in active tactile displays. However, thiol-ene/acrylate [177] is one of the most used shape memory polymers as substrate for thin-film and commercial electronics [90, 163,165], such as electrodes [160], OLEDS [161], capacitors [162], sensors [50], and TFTs [163,164].…”

Section: Shape Memory Materialsmentioning

confidence: 99%

Thin-film electronics on active substrates: review of materials, technologies and applications

Catania

Oliveira

Lugoda

et al. 2022

J. Phys. D: Appl. Phys.

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In the last years, the development of new materials as well as advanced fabrication techniques have enabled the transformation of electronics from bulky rigid structures into unobtrusive soft systems. This gave rise to new thin-film devices realized on previously incompatible and unconventional substrates, such as temperature-sensitive polymers, rough organic materials or fabrics. Consequently, it is now possible to realize thin-film structures on active substrates which provide additional functionality. Examples include stiffness gradients to match mechanical properties, mechanical actuation to realize smart grippers and soft robots, or microfluidic channels for lab-on-chip applications. Composite or microstructured substrates can be designed to have bespoke electrical, mechanical, biological and chemical features making the substrate an active part of a system. Here, the latest developments of smart structures carrying thin-film electronics are reviewed. Whereby the focus lies on soft and flexible systems, designed to fulfill tasks, not achievable by electronics or the substrate alone. After a brief introduction and definition of the requirements and topic areas, the materials for substrates and thin-film devices are covered with an emphasis on their intrinsic properties. Next, the technologies for electronics and substrates fabrication are summarized. Then, the desired properties and design strategies of various active substrate are discussed and benchmarked against the current state-of-the-art. Finally, available demonstrations, and use cases are presented. The review concludes by mapping the available technologies to innovative applications, identifying promising underdeveloped fields of research and potential future progress.

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“…8,10 Shape memory polymers can withstand high deformation and change the deformed shape to the original one with an external stimulus like heat, light, pH, etc. 11,12 Some researchers evaluated the effect of shape memory polymers on TENG's durability. 13−15 Park et al 15 used the shape memory composition (i.e., azobenzene and silver nanowires) with the spherical surface pattern to fabricate the TENG.…”

Section: ■ Introductionmentioning

confidence: 99%

“…The result of these deformations is a significant drop in the TENG’s output. , So, the main problem with using a TENG in real applications is its low durability. One of the best solutions for this problem is utilizing polymers with the ability to recover the original shapes or shape memory polymers. , Shape memory polymers can withstand high deformation and change the deformed shape to the original one with an external stimulus like heat, light, pH, etc. , Some researchers evaluated the effect of shape memory polymers on TENG’s durability. − Park et al used the shape memory composition (i.e., azobenzene and silver nanowires) with the spherical surface pattern to fabricate the TENG. The continuous operation of the TENG caused the surface pattern of the triboelectric layer to deteriorate, resulting in a decrease in the device’s performance.…”

Section: Introductionmentioning

confidence: 99%

Melamine-Foam-Based Shape Memory Nanocomposite for a Highly Durable Triboelectric Nanogenerator

Khosroshahi,

Karimzadeh,

Enayati

et al. 2024

ACS Sustainable Chem. Eng.

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The development of triboelectric nanogenerators (TENGs) that exhibit enhanced durability and performance is crucial for their practical usage. Incorporating 3D and shape memory nanocomposites into TENGs is a promising strategy to achieve this goal. In this study, the effect of various oxide nanoparticles (Al 2 O 3 , SiO 2 , and TiO 2 ) on the TENG's performance was evaluated, and Al 2 O 3 was found to have the most significant impact. Subsequently, a shape memory melamine foam−poly(vinyl alcohol)− Al 2 O 3 [SM(MF-PVA-Al 2 O 3 )] nanocomposite was synthesized to fabricate a durable and high-performing TENG. The SM(MF-PVA-Al 2 O 3 ) nanocomposite has the ability to recover deformations and shape changes through heating (at 70 °C for 15 min), which restores the TENG's performance to its initial value without any noticeable difference. This recovery can be repeated multiple times. The resulting TENG exhibited a high performance (1325.96 V and 7.71 μA) and power density (70.99 mW/cm 2 ) and was capable of powering 110 commercial LEDs. Therefore, the SM(MF-PVA-Al 2 O 3 ) nanocomposite is a suitable material for fabricating TENGs with practical applications that are both high-performance and durable.

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Introduction to Shape-Memory Polymers, Polymer Blends and Composites: State of the Art, Opportunities, New Challenges and Future Outlook

Cited by 12 publications

References 161 publications

Chitosan-Based Polymer Blends for Drug Delivery Systems

Chitosan-Based Polymer Blends for Drug Delivery Systems

Thin-film electronics on active substrates: review of materials, technologies and applications

Melamine-Foam-Based Shape Memory Nanocomposite for a Highly Durable Triboelectric Nanogenerator

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