Functionalization-Directed Stabilization of Hydrogen-Bonded Polymer Complex Fibers: Elasticity and Conductivity

Li, Jiefu; Sun, Jiaxing; Wu, Di; Huang, Wentao; Zhu, Meifang; Reichmanis, Elsa; Shen, Yang

doi:10.1007/s42765-019-0001-0

Cited by 30 publications

(17 citation statements)

References 39 publications

(44 reference statements)

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“…Interestingly, the LDAP film becomes hydrophilic by immersing in glucose with CA (41 ± 3°), and higher hydrophilicity was observed for LDAP immersed in sucrose with CA 33 ± 2° (Figure S5e, f). Remarkably, the addition of sucrose into LDAP film selectively produced a hydrophilic film showing stronger bonding and smoother surface which is in accordance with the higher interactions of sucrose with LDAP supporting the visual recognition of sucrose [32][33][34].…”

Section: Contact Angle Measurementsupporting

confidence: 68%

Chirality Transfer in Supramolecular Co-assembled Fibrous Material Enabling the Visual Recognition of Sucrose

et al. 2020

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Molecular recognition of simple sugars is crucial due to their essential roles in most living organisms. However, it remains extremely challenging to achieve a visual recognition of simple sugars like sucrose in water media under physiological conditions. In this article, the visual recognition of sucrose is accomplished by a chiral supramolecular hydrogel formation through the co-assembly of a two-component fibrous solution (l-phenylalanine based gelator co-diaminopyridine, LDAP) and sucrose. H-bonding between the amino group of LDAP and the hydroxyl group of sucrose facilitates the gelation by loading sucrose into the LDAP solution. The formed hydrogel showed an amplified inversion of circular dichroism (CD) signals as compared to the corresponding LDAP solution. In addition, the effective chirality transfer was accompanied by a bathochromic shift in UV-Vis and FL spectra of the gel. Such a simple and straightforward chiral co-assembled strategy to visually recognize sucrose will have the potential use of smart gelators in saccharides separation and proteomics to be further applied in medical diagnostics and cell imaging.

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Section: Contact Angle Measurementsupporting

confidence: 68%

Chirality Transfer in Supramolecular Co-assembled Fibrous Material Enabling the Visual Recognition of Sucrose

et al. 2020

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“…The S block is incompatible with the A and E blocks, whereas the A and E blocks can form hydrogen‐bonded complexes. [ 38 , 39 , 40 , 41 , 42 ] When SAS and SES are assembled, a lamellar structure with alternating vitrified S and hydrogen‐bonded A/E association layers is produced owing to the microphase separation of the triblock copolymers and the hydrogen‐bonding complexation of the A and E segments. In general, the hydrogen‐bonded complex of A/E homopolymers is sensitive to the environmental pH.…”

Section: Introductionmentioning

confidence: 99%

“…As the pH increases, the complex dissociates and dissolves. [ 40 , 41 , 42 ] However, the A and E blocks in the SAS/SES assembly are covalently linked to S blocks; hence, they are anchored to the vitrified S domain layers. In this case, the hydrogen bonds break and the A/E layers dilate but do not dissolve as the pH increases.…”

Section: Introductionmentioning

confidence: 99%

Skeletal Muscle Fibers Inspired Polymeric Actuator by Assembly of Triblock Polymers

Wang

Zhang

et al. 2022

Advanced Science

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Inspired by the striated structure of skeletal muscle fibers, a polymeric actuator by assembling two symmetric triblock copolymers, namely, polystyrene-b-poly(acrylic acid)-b-polystyrene (SAS) and polystyrene-b-poly(ethylene oxide)-b-polystyrene (SES) is developed. Owing to the microphase separation of the triblock copolymers and hydrogen-bonding complexation of their middle segments, the SAS/SES assembly forms a lamellar structure with alternating vitrified S and hydrogen-bonded A/E association layers. The SAS/SES strip can be actuated and operate in response to environmental pH. The contraction ratio and working density of the SAS/SES actuator are approximately 50% and 90 kJ m −3 , respectively; these values are higher than those of skeletal muscle fibers. In addition, the SAS/SES actuator shows a "catch-state", that is, it can maintain force without energy consumption, which is a feature of mollusc muscle but not skeletal muscle. This study provides a biomimetic approach for the development of artificial polymeric actuators with outstanding performance.

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“…SMPFs can be combined with some functional materials, showing excellent shape memory performance and versatility [88]. In recent years, SMPs as a kind of stimuli-response polymers have shown excellent material properties, especially the actuation method, which plays a very important role in the development of SMPs and their composites.…”

Section: Multifunctional Shape Memory Composite Fibersmentioning

confidence: 99%

Shape Memory Polymer Fibers: Materials, Structures, and Applications

et al. 2021

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Shape memory polymer (SMP) is a kind of material that can sense and respond to the changes of the external environment, and its behavior is similar to the intelligent reflection of life. Electrospinning, as a versatile and feasible technique, has been used to prepare shape memory polymer fibers (SMPFs) and expand their structures. SMPFs show some advanced features and functions in many fields. In this review, we give a comprehensive overview of SMPFs, including materials, fabrication methods, structures, multifunction, and applications. Firstly, the mechanism and characteristics of SMP are introduced. We then discuss the electrospinning method to form various microstructures, like non-woven fibers, core/shell fibers, hollow fibers and oriented fibers. Afterward, the multiple functions of SMPFs are discussed, such as multi-shape memory effect, reversible shape memory effect and remote actuation of composites. We also focus on some typical applications of SMPFs, including biomedical scaffolds, drug carriers, self-healing, smart textiles and sensors, as well as energy harvesting devices. At the end, the challenges and future development directions of SMPFs are proposed.

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Functionalization-Directed Stabilization of Hydrogen-Bonded Polymer Complex Fibers: Elasticity and Conductivity

Cited by 30 publications

References 39 publications

Chirality Transfer in Supramolecular Co-assembled Fibrous Material Enabling the Visual Recognition of Sucrose

Chirality Transfer in Supramolecular Co-assembled Fibrous Material Enabling the Visual Recognition of Sucrose

Skeletal Muscle Fibers Inspired Polymeric Actuator by Assembly of Triblock Polymers

Shape Memory Polymer Fibers: Materials, Structures, and Applications

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