Dyeing performances of ramie fabrics modified with an amino-terminated aliphatic hyperbranched polymer

Wang, Guowei; Chen, Bin; Zhuang, Linghua; Yun, Kang Chung; Guo, Jia-rong; Wang, Yan; Xu, Bin

doi:10.1007/s10570-015-0558-6

Cited by 18 publications

(8 citation statements)

References 27 publications

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“…Compared to the other reinforcing fillers, numerous hydroxyl groups are loaded at the surface of NF, presenting a large potential to form hydrogen bonding with the amide-based molecules. 41 It can be envisioned that NFs can act as an ideal acceptor to anchor and immobilize the amide-based selfassembling compounds, achieving the directed diffusion and in situ construction of root-like NFs, with no need for additional chemical pretreatment on the surface. Accordingly, there are some issues that need to be addressed: (1) How does hydrogen-bonding form between the amide-based compounds and NF?…”

Section: ■ Introductionmentioning

confidence: 99%

Enhanced Interfacial Strength of Natural Fiber/Polypropylene Composite with Mechanical-Interlocking Interface

Shi

Yang

Nie

2017

ACS Sustainable Chem. Eng.

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The interface, as the weakest point of a polymer composite, determines the comprehensive performance, especially in a polarity/nonpolarity system featuring poor interfacial adhesion. Here, we report an interfacial manipulation strategy to trigger the preferential adsorption of amide-based self-assembling compounds (NAs) from polypropylene (PP) melts onto the surface of natural fiber (NF) as a result of hydrogen bonding and then promote the epitaxial growth, into root-like NF fiber with interfacial interlocking effects. The unique interface constructed by the grown NA fibers rendered the PP/NF composite with strong interfacial adhesion. The substantial increases of 64.4%, 77.9%, and 94.4% in interfacial shear strength, interfacial friction, and debonding energy are achieved, respectively, in comparison to conventional NF/PP composite. Finally, the working principle of the laterally grown NA fibers on the interfacial enhancement was established based on the fracture morphology after the microbond test. This study can effectively solve the interfacial problems of a polymer composite featuring limited interfacial adhesion, via simple one-step physical blending, without any preliminary surface treatment or "soft" compatibilizers.

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Section: ■ Introductionmentioning

confidence: 99%

Enhanced Interfacial Strength of Natural Fiber/Polypropylene Composite with Mechanical-Interlocking Interface

Shi

Yang

Nie

2017

ACS Sustainable Chem. Eng.

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“…1,2‐diaminopropane (1.48 g, 20.0 mmol) was dissolved in methanol (20 ml), and dimethyl 3,3′‐dithiodipropionate (23.83 g, 10.0 mmol) was added dropwise at 0–5 °C under continuous stirring. The resulting solution was allowed to react at room temperature for 12 h and at 40 °C for 24 h. The epoxy‐curing agent was obtained after removing the residual reactant and solvent through the evaporation under vacuum at 60 °C for 12 h. To determine the quantity used to cure the epoxy resin, the amino equivalent weight of the as‐prepared epoxy‐curing agent was measured as 257 g mol −1 by acid‐base titration 28 …”

Section: Methodsmentioning

confidence: 99%

Preparation and properties of self‐healable solid‐state polymer electrolytes based on covalent adaptive networks enabled by disulfide bond

Sun

2022

Journal of Polymer Science

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Covalent adaptive networks (CANs) have numbers of versatile abilities derived from topological reshuffling with interesting potentials. Here, self-healable solid-state polymer electrolytes were developed by integrating epoxy-resinbased CANs enabled by disulfide bond with a solid lithium salt (LiTFSI). The disulfide bond was introduced by using a disulfide-containing aliphatic polyamine as the epoxy-curing agent. To determine the cure cycle of this epoxy-resin system, the curing kinetics in the presence of LiTFSI was studied by nonisothermal differential scanning calorimetry. The prepared ion-conducting (IC) CANs with different LiTFSI content were optically transparent and selfhealable at temperatures above glass transition temperature (T g ). The effect of LiTFSI content on the thermal stability and tensile properties was investigated.The electrical properties of the IC CANs were studied by impedance spectroscopy at various temperatures. Their ionic conductivity was analyzed by the Vogel-Tamman-Fulcher model and equivalent-circuit fitting. Due to the high mobility of charge carriers, the IC CAN sample (containing15 wt% LiTFSI) exhibited the best ionic conductivity, which reached a value of 3.35 Â 10 À6 S cm À1 at 80 C and 8.31 Â 10 À6 S cm À1 at 100 C, presenting great attraction for self-healing iontronics.

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“…HMs are mostly amorphous materials, though some exceptional examples have been reported. For example, HMs have been modified to induce liquid crystallinity [ 32 , 33 ] or crystallinity [ 34 ]. The lower glass transition temperature (T g ) of HMs than of linear polymers is another important feature.…”

Section: Properties Of Hmsmentioning

confidence: 99%

Hyperbranched Macromolecules: From Synthesis to Applications

2018

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Hyperbranched macromolecules (HMs, also called hyperbranched polymers) are highly branched three-dimensional (3D) structures in which all bonds converge to a focal point or core, and which have a multiplicity of reactive chain-ends. This review summarizes major types of synthetic strategies exploited to produce HMs, including the step-growth polycondensation, the self-condensing vinyl polymerization and ring opening polymerization. Compared to linear analogues, the globular and dendritic architectures of HMs endow new characteristics, such as abundant functional groups, intramolecular cavities, low viscosity, and high solubility. After discussing the general concepts, synthesis, and properties, various applications of HMs are also covered. HMs continue being materials for topical interest, and thus this review offers both concise summary for those new to the topic and for those with more experience in the field of HMs.

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Dyeing performances of ramie fabrics modified with an amino-terminated aliphatic hyperbranched polymer

Cited by 18 publications

References 27 publications

Enhanced Interfacial Strength of Natural Fiber/Polypropylene Composite with Mechanical-Interlocking Interface

Enhanced Interfacial Strength of Natural Fiber/Polypropylene Composite with Mechanical-Interlocking Interface

Preparation and properties of self‐healable solid‐state polymer electrolytes based on covalent adaptive networks enabled by disulfide bond

Hyperbranched Macromolecules: From Synthesis to Applications

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