Polyacrylamide brushes with varied morphologies as a tool for control of the intermolecular interactions within EPDM/MVQ blends

Galeziewska, Monika; Lipińska, Magdalena; Mrlík, Miroslav; Ilčíková, Markéta; Gajdošová, Veronika; Šlouf, Miroslav; Achbergerová, Eva; Musilová, Lenka; Mosnáček, Jaroslav; Pietrasik, Joanna

doi:10.1016/j.polymer.2021.123387

Cited by 7 publications

(5 citation statements)

References 31 publications

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“…Finally, MWS relaxation, which is very usual for PVDF-based materials and composites, are present at high temperatures and low frequencies [ 68 , 69 ]. However, to be able to clearly see this MWS relaxation, the relative permittivity and dielectric losses were recalculated to the dielectric loss modulus expression similarly as in our previous publications [ 70 , 71 ]. As can be seen from Table 3 , the activation energy calculated from the dielectric map ( Figure 11 d), β relaxation increases with addition of the neat GO particles and reaches the highest values 25.9 kJ mol −1 for PVDF/GO-PBA, indicating that the motion of the fluorine side groups are significantly restricted and fixed in the β-phase position as was confirmed by XRD and FTIR.…”

Section: Resultsmentioning

confidence: 99%

Effect of Nano-Sized Poly(Butyl Acrylate) Layer Grafted from Graphene Oxide Sheets on the Compatibility and Beta-Phase Development of Poly(Vinylidene Fluoride) and Their Vibration Sensing Performance

Mrlík

Ilčíková

Osička

et al. 2022

IJMS

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In this work, graphene oxide (GO) particles were modified with a nano-sized poly(butyl acrylate) (PBA) layer to improve the hydrophobicity of the GO and improve compatibility with PVDF. The improved hydrophobicity was elucidated using contact angle investigations, and exhibit nearly 0° for neat GO and 102° for GO-PBA. Then, the neat GO and GO-PBA particles were mixed with PVDF using a twin screw laboratory extruder. It was clearly shown that nano-sized PBA layer acts as plasticizer and shifts glass transition temperature from −38.7 °C for neat PVDF to 45.2 °C for PVDF/GO-PBA. Finally, the sensitivity to the vibrations of various frequencies was performed and the piezoelectric constant in the thickness mode, d33, was calculated and its electrical load independency were confirmed. Received values of the d33 were for neat PVDF 14.7 pC/N, for PVDF/GO 20.6 pC/N and for PVDF/GO-PBA 26.2 pC/N showing significant improvement of the vibration sensing and thus providing very promising systems for structural health monitoring and data harvesting.

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Section: Resultsmentioning

confidence: 99%

Effect of Nano-Sized Poly(Butyl Acrylate) Layer Grafted from Graphene Oxide Sheets on the Compatibility and Beta-Phase Development of Poly(Vinylidene Fluoride) and Their Vibration Sensing Performance

Mrlík

Ilčíková

Osička

et al. 2022

IJMS

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“…Notably, ATRP is particularly successful in creating bottlebrush polymers, surface-grafted polymer brushes, and star polymers. [68][69][70][71][72][73]…”

Section: Reversible Addition-fragmentation Chain Transfer Polymerizationmentioning

confidence: 99%

“…This versatility positions ATRP as the most widely used polymerization method for synthesizing functional polymers with diverse architectures. Notably, ATRP is particularly successful in creating bottlebrush polymers, surface‐grafted polymer brushes, and star polymers 68–73 …”

Section: Approaches For Synthesis Of Functional Polymersmentioning

confidence: 99%

Non‐linear functional polymers containing selective/cleavable bonds: Synthesis and their biomedical applications

Rahimi,

Gałęziewska,

Jerczyński

et al. 2024

Polymers for Advanced Techs

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The growing interest in functional materials has resulted in the emergence of smart polymers, demonstrating practical performance in various applications especially for biomedical purposes. The properties of functional polymers are mainly determined by the presence of functional groups that differ from those in the main chains. While some polymers are naturally active and considered functional, others require modification for enhanced impact and functionality. Many functional polymers typically have a linear backbone, but very recently the attention has been shifted towards those with specific topologies and architecture, for example, bottlebrushes, stars, dendritic polymers, and gels. Over the past few years, there has been a rising emphasis on integrating selective bonds into complex polymer structures to enhance chain scission in single macromolecules. This review captures the most recent and promising approaches to the design of non‐linear functional polymers containing selective/cleavable bonds and discusses the potential of these materials for biomedical applications.

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“…However, challenges arise due to the differences in polarity, viscosity, and vulcanization rates between these distinct polymers. Simple blending often results in poorer physical properties compared to each elastomer individually, leading to undesired phase separation, broad distribution of domain sizes, and inadequate physical/chemical interfacial adhesion. , Therefore, the key to preparing high-performance SEP composites lies in enhancing the interfacial compatibility between EPDM and SR.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Compatibility and Thermo-Oxidative Stability of Silicone Rubber/Ethylene–Propylene Terpolymer Composites via In Situ Interface Coupling

Hu,

Wei,

Zhu

et al. 2024

ACS Appl. Polym. Mater.

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The low surface energy of silicone rubber makes it difficult to blend with conventional rubbers. In this study, we employed mercapto silicone resin (SH-MTQ) for the reactive compatibilization of silicone rubber/ethylene− propylene terpolymer (SEP) composites. The different reactivities of SH-MTQ with silicone rubber and ethylene−propylene terpolymer ensure an efficient enhancement of compatibility. After modification, smaller-sized domains and a more homogeneous distribution emerge in composites, leading to improved mechanical properties. Notably, 6%MTQSEP exhibits a remarkable 102% increase in tensile strength and a 66% improvement in elongation at the break. A possible mechanism for the increased compatibility of SEP composites with SH-MTQ resin is proposed. In addition, the thermo-oxidative stability of composites is significantly enhanced. After being aged at 150 °C for 3 days, the color and mechanical properties of the composites almost remain unchanged. In summary, SH-MTQ has the potential to be a functional filler for the preparation of high-performance SEP composites with outstanding mechanical properties and excellent anti-aging ability.

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Polyacrylamide brushes with varied morphologies as a tool for control of the intermolecular interactions within EPDM/MVQ blends

Cited by 7 publications

References 31 publications

Effect of Nano-Sized Poly(Butyl Acrylate) Layer Grafted from Graphene Oxide Sheets on the Compatibility and Beta-Phase Development of Poly(Vinylidene Fluoride) and Their Vibration Sensing Performance

Effect of Nano-Sized Poly(Butyl Acrylate) Layer Grafted from Graphene Oxide Sheets on the Compatibility and Beta-Phase Development of Poly(Vinylidene Fluoride) and Their Vibration Sensing Performance

Non‐linear functional polymers containing selective/cleavable bonds: Synthesis and their biomedical applications

Enhanced Compatibility and Thermo-Oxidative Stability of Silicone Rubber/Ethylene–Propylene Terpolymer Composites via In Situ Interface Coupling

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